JP2004022363A - Non-electrolyte secondary battery - Google Patents

Abstract

The present invention can be used as a portable power supply or an emergency power supply for an electronic device in consideration of portability and portability of an electronic device such as a notebook computer in a place where AC power is not easily obtained. In addition, it is possible to avoid data loss due to running out of the battery and extend the use time.
Kind Code: A1 A wound electrode body capable of charging and discharging and having terminal leads for charge and discharge, and a wound electrode body in a state where the terminal leads are led out. And a control circuit section 7 connected to terminal leads 15 and 16 outside the package 6 for controlling charging and discharging, and electrically connected to the control circuit section 7. And a connector having a predetermined number of connection terminals detachably connected to a socket for a storage medium provided in an external electronic device, and having a shape and a size determined by the standard of the storage medium. The connector 8 and the control circuit unit 7 are fixed to the exterior body 6 and provided integrally.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention can be used in exchange for a storage medium having a standardized shape and size, such as a PC card, a small card, a memory stick, a multimedia card, and the like. The present invention relates to a non-electrolyte secondary battery that can be used as a power supply device for an electronic device by being mounted on a socket.
[0002]
[Prior art]
Generally, an information processing device such as a notebook computer, which is designed to be portable and portable, has a built-in battery power supply and a detachable battery pack so that it can be used in places where alternating current (AC) power is not easily obtained. It is configured so that it can be mounted as possible.
[0003]
[Problems to be solved by the invention]
In order to use a notebook computer or the like for a long time in such an information processing apparatus, it is necessary to mount a large-capacity large-sized battery pack or prepare a separate spare battery pack. is there. In this case, since the battery pack itself has a certain size, it takes time to carry the battery pack, which impairs portability.
[0004]
Also, even if a large-capacity battery pack is prepared, in places where AC power is not easily obtained, the battery will eventually run out, so that the fear of data loss due to running out of the battery is eliminated. Nothing. Furthermore, in electronic devices such as mobile phones, connectors that use relatively easily available primary batteries and simple chargers that use primary battery packs are commercially available, but notebook computers and the like have relatively low power consumption. Due to their large size, connectors and simple chargers using primary batteries for these electronic devices have not yet been put to practical use.
[0005]
On the other hand, in recent years, in most portable personal computers, a storage medium slot in which a storage medium such as a PC card or a memory stick is detachably mounted for conversion of a storage medium or connection between an external drive device and a computer main body. Is built-in. The storage medium slot is hollow when the storage medium is not used. Therefore, even if something other than the storage medium is inserted into the storage medium slot, the portability of the personal computer is not impaired.
[0006]
The present invention has been made in view of such conventional problems, and has been made in consideration of the portability and portability of an electronic device such as a notebook computer in a place where AC power is not easily obtained. To solve the above-mentioned problems by enabling the use as a portable power supply or emergency power supply, etc. for avoiding data loss due to running out of battery, extending the use time, etc. It is an object.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems and the like and achieve the above object, a non-electrolyte secondary battery according to claim 1 of the present application is capable of charging and discharging, and has a terminal lead for charging and discharging. A power generation element having, an exterior body for housing and sealing the power generation element in a state where the terminal lead is led out, and a control circuit unit connected to the terminal lead outside the exterior body and performing control during charging and discharging. A predetermined number of connection terminals electrically connected to the control circuit unit and detachably connected to a socket for a storage medium provided in an external electronic device, and according to the standard of the storage medium. A connector having a predetermined shape and size, wherein the connector and the control circuit are fixed to an exterior body and provided integrally.
[0008]
In the non-electrolyte secondary battery according to claim 2 of the present application, the connector is provided with a predetermined number of connection holes for exposing a predetermined number of connection terminals for connecting to the socket on the front surface facing the socket. It is characterized in that erroneous mounting preventing means for preventing erroneous mounting to the socket is provided on both sides.
[0009]
The non-electrolyte secondary battery according to claim 3 of the present application is characterized in that the erroneous mounting prevention means is provided with an erroneous discharge prevention means for flowing a current only when a current discharged from the power generating element can flow to the socket. Features.
[0010]
In the non-electrolyte secondary battery according to claim 4 of the present application, the erroneous discharge preventing means is provided with a switch provided on the connector, and a switch provided on the socket and provided when the connector is normally fitted to the socket. And a fitting operation means for causing a current to flow by operating the device.
[0011]
The non-electrolyte secondary battery according to claim 5 of the present application, wherein the connector has an opening that is continuously opened from the front surface facing the socket to a flat surface and exposes a predetermined number of connection terminals for connecting to the socket. Erroneous attachment preventing means for preventing erroneous attachment to the socket is provided on both sides of the front surface.
[0012]
The non-electrolyte secondary battery according to claim 6 of the present application is characterized in that the erroneous mounting prevention means is provided with an erroneous discharge prevention means for supplying a current only when a current discharged from the power generating element can flow to the socket. Features.
[0013]
The non-electrolyte secondary battery according to claim 7, wherein the erroneous discharge preventing means is provided with a switch provided on the connector and a switch provided on the socket, and the switch is provided when the connector is normally fitted into the socket. And a fitting operation means for causing a current to flow by operating the device.
[0014]
In the non-electrolyte secondary battery according to claim 8 of the present application, the control circuit unit detects that the power generating element has been charged by a predetermined amount or more, and detects that the power generating element has been discharged by a predetermined amount or more. It is characterized by having at least one of the discharge detecting means.
[0015]
In the non-electrolyte secondary battery according to the ninth aspect of the present invention, the control circuit portion is housed in a recess provided in the exterior body, and the opening side of the recess is covered with a connector. Is formed in a shape and a size determined by the standard.
[0016]
With the above-described configuration, in the non-electrolyte secondary battery according to claim 1 of the present application, the control circuit unit and the connector are fixed to an exterior body that houses and seals the power generation element and is integrally configured. Accordingly, the storage medium can be used in exchange for the storage medium, and can be used in the same manner as the storage medium and used as a portable or emergency power supply device.
[0017]
In the non-electrolyte secondary battery according to claim 2 of the present application, a predetermined number of connection terminals are exposed on the front surface of the connector, and erroneous mounting prevention means for preventing erroneous mounting on both sides of the front surface are provided, for example, for storage. It can be used as a portable or emergency power supply for an electronic device that uses the PC card by using the PC card as a medium, and ensures that it is incorrectly mounted on the storage medium of the electronic device. Can be prevented.
[0018]
In the non-electrolyte secondary battery according to claim 3 of the present application, by providing the erroneous mounting prevention means in the erroneous mounting prevention means, the socket of the storage medium slot from the power generation element only when current can flow to the electronic device. Current can flow, and the electronic components on the side of the electronic device can be prevented from being destroyed by excessive current supplied from the power generating element.
[0019]
In the non-electrolyte secondary battery according to claim 4 of the present application, the erroneous discharge prevention means is constituted by the switch means and the fitting operation means, thereby preventing the erroneous discharge with a relatively simple configuration, and the electronic device side The electronic component can be prevented from being destroyed by an excessive current supplied from the power generation element.
[0020]
In the non-electrolyte secondary battery according to claim 5 of the present application, a predetermined number of connection terminals are exposed from an opening continuously opened from the front surface of the connector to a flat surface, and erroneous fitting is prevented on both sides of the front surface. Since the means is provided, for example, it can be used as a portable or emergency power supply for an electronic device using the memory stick in the same manner as a memory stick which is a storage medium, and can be used for the storage medium of the electronic device. It can be reliably prevented from being mounted in a state where it is placed.
[0021]
In the non-electrolyte secondary battery according to claim 6 of the present application, by providing the erroneous mounting prevention means in the erroneous mounting prevention means, the socket of the storage media slot from the power generation element only when current can flow to the electronic device. Current can flow, and the electronic components on the side of the electronic device can be prevented from being destroyed by excessive current supplied from the power generating element.
[0022]
In the non-electrolyte secondary battery according to claim 7 of the present application, the erroneous discharge prevention means is constituted by the switch means and the fitting operation means. The electronic component can be prevented from being destroyed by an excessive current supplied from the power generation element.
[0023]
In the non-electrolyte secondary battery according to claim 8 of the present application, the control circuit unit includes at least one of the charge detection unit and the discharge detection unit, so that the power generation element is charged to a predetermined amount or more, or the power generation element is charged from the power generation element. It is possible to eliminate the possibility that the battery is discharged more than a certain amount.
[0024]
In the non-electrolyte secondary battery according to claim 9 of the present application, the control circuit portion is housed in the concave portion of the outer package, and the opening side of the concave portion is covered with the connector to be integrated, so that the PC card, the memory stick, etc. It is possible to provide a non-electrolyte secondary battery that can be used in place of the storage medium described above, and that can be used for electronic devices that can be reduced in size and thickness and that is portable and that can cope with emergencies.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 11 show an embodiment of the present invention. 1 is an exploded perspective view showing a first embodiment of the non-electrolyte secondary battery of the present invention, FIG. 2 is an assembled perspective view, FIG. 3 is a plan view of FIG. 1, and FIG. 4 is a front view of FIG. FIG. 5 is an explanatory view showing a main part of FIG. 1, FIG. 6 is a block diagram showing a circuit configuration of an electric circuit according to a first embodiment of the non-electrolyte secondary battery of the present invention, and FIG. FIG. 8 is an exploded perspective view showing an embodiment of a body and a power generating element, FIG. 8 is an assembled perspective view of FIG. 7, FIG. 9 is a perspective view illustrating an embodiment of the power generating element of the present invention, and FIG. FIG. 11 is a perspective view showing a second embodiment of the non-electrolyte secondary battery of the present invention.
[0026]
The non-electrolyte secondary battery of the present invention has the same external shape and size of at least terminal connection portions (connectors) of a semiconductor storage medium whose external shape and size are determined according to a certain standard. It can be exchanged and used instead of the semiconductor storage medium, by mounting it in a storage medium slot (PC card slot, memory stick slot, etc.) provided in accordance with a certain standard of electronic equipment, so It is a power supply device that can be used as a power supply for emergency use or a standby emergency power supply.
[0027]
As a first embodiment of the non-electrolyte secondary battery of the present invention having such a function, for example, those having configurations as shown in FIGS. 1 to 9 can be mentioned. The non-electrolyte secondary battery 1 conforms to the PC Card Standard (PC Card Standard), which is a standard of JEITA (Japan Electronics and Information Technology Industries Association, formerly JEIDA: JEITA). The power supply device has a corresponding external shape and size.
[0028]
First, a PC card showing a specific example of a storage medium applied in connection with the present invention will be described. FIG. 10 shows a schematic configuration of a PC card whose shape and size are determined based on the PC card standard which is a JEITA standard. As shown in FIG. 10, the PC card 2 is configured as one flat plate. That is, the planar shape of the PC card 2 is a rectangle in which the width B in the width direction is shorter than the length L in the longitudinal direction, and the thickness H in the direction intersecting these length L and width B is: The length is set to be sufficiently smaller than the length L and the width B.
[0029]
Although not shown, a controller, a storage device (ROM, RAM), an interface, and other necessary components are stored inside the PC card 2. On the front side, which is one end in the longitudinal direction of the PC card 2, a connector 2a for connecting to a socket provided in a PC card slot of a notebook computer or the like as an external electronic device is provided. On the front surface of the connector 2a of the PC card 2, 68 connection holes 4 into which the terminal pins of the socket are inserted are provided in two levels in the height direction and are arranged 34 in the width direction. Inside these connection holes 4, connection terminals electrically connected to a controller or the like are provided.
[0030]
Further, erroneous mounting prevention means for preventing the PC card 2 from being erroneously inserted into the PC card slot is provided on both left and right sides of the connector 2a of the PC card 2. The erroneous mounting prevention means includes a notch 4a provided on one side of the connector 2a and a key groove 4b provided on the other side. Protrusions or projections corresponding to the notch portion 4a and the key groove portion 4b are provided on a socket of a PC card slot (not shown), and the difference between the shapes of the notch portion 4a and the key groove portion 4b is used for PC. This prevents the card 2 from being incorrectly inserted into the PC card slot.
[0031]
As shown in FIGS. 1 and 2, the non-electrolyte secondary battery 1 having the same shape and size as the PC card 2 having such a configuration can be charged and discharged. A power generating element 5 having a terminal lead, an exterior body 6 for hermetically sealing and housing the power generating element with the terminal lead being led out, a control circuit section 7 for controlling charging and discharging of the power generating element, and an external electronic device. A connector 8 detachably connected to a socket of a PC card slot provided in the device.
[0032]
As a power generation element of the non-electrolyte secondary battery 1, for example, a polymer lithium ion secondary battery can be applied. The polymer lithium ion secondary battery as the power generation element 5 can be configured as a wound electrode body, for example, as shown in FIG. The spirally wound electrode body 5 includes a positive electrode 10 and a negative electrode 11 formed in a band shape, and two separators 12 and 13 also formed in a band shape.
[0033]
The positive electrode 10 includes a positive electrode current collector 10a formed in a belt shape, and positive electrode mixture layers 10b and 10c applied to both surfaces of the positive electrode current collector 10a. As the positive electrode current collector 10a, for example, an aluminum foil having a thickness of 20 μm can be used. Positive electrode mixture layers 10b and 10c are formed by uniformly applying the positive electrode mixture slurry on both surfaces of the positive electrode current collector 10a. At this time, the blank portion 14 is formed at one end (end of winding) in the longitudinal direction of the positive electrode current collector 10a such that the positive electrode mixture slurry is not applied over a certain range.
[0034]
The following can be used as the positive electrode active material of the positive electrode mixture. For example, a chalcogen compound with a transition metal containing an alkali metal, in particular, an oxide of an alkali metal and a transition metal can be used. As the crystal structure of the compound, a layered compound or a spinel-type compound is often used. The layered compound has the general formula LixMO ₂ Can be used. Where Li is lithium and O ₂ Is oxygen. Further, x in Lix is 0.5 ≦ x ≦ 1.10.
[0035]
M is one or more elements selected from transition metal elements, and specifically, iron (Fe), cobalt (Co), nickel (Ni), manganese (Mn), copper (Cu) , Zinc (Zn), tin (Sn), chromium (Cr), vanadium (V), and titanium (Ti). It is preferable that one or two or more selected from Fe, Co, Ni, and Mn are contained in these groups.
[0036]
A positive electrode material mixture slurry is prepared using such a positive electrode active material. This positive electrode mixture slurry is, for example, powdered LiCoO ₂ , 85 parts by weight of artificial graphite powder, 5 parts by weight of carbon black and 5 parts by weight of carbon black are sufficiently kneaded to prepare a positive electrode mixture. To this positive electrode mixture, polyvinylidene fluoride (PVdF) dissolved in N-methyl-2-pyrrolidone is added so as to have a solid content of 5 parts by weight, whereby an ink-like positive electrode slurry is obtained.
[0037]
The slurry of the positive electrode mixture is uniformly applied to both surfaces of the positive electrode current collector 10a such that a blank portion 14 is formed at the end of winding the electrode. At this time, as the positive electrode current collector 10a, for example, an aluminum foil (current collector) having a width of 480 mm and a thickness of 20 μm is used. On both surfaces of the positive electrode current collector 10a, the metal foil is intermittently applied at a pitch of about 550 mm, and between each pitch, an exposed metal foil portion of about 30 mm to which the positive electrode slurry is not applied is provided. Then, after drying the positive electrode mixture slurry on both surfaces, compression molding is performed using a roller press. The rolled positive electrode raw material is cut into a width of 75 mm to form a positive electrode 10 having a band shape. After cutting and winding this positive electrode 10, it was subjected to vacuum drying treatment.
[0038]
The positive electrode reel is unwound, and an aluminum terminal lead 15 is connected to the exposed portion of the metal foil. The size of the terminal lead 15 is, for example, 5 mm in width, 70 mm in length, and 100 μm in thickness, and is joined by ultrasonic welding so as to protrude 17.5 mm or more from the end face of the electrode. Thereafter, an insulating tape (polyimide tape: insulating material) having a width of 19 mm is attached to the front and back surfaces of the exposed metal foil to which the terminal leads 15 are welded. This insulating tape was attached to the terminal lead 15 protruding from the electrode end face so as to cover 2 mm or more. The above steps are continuously performed, and the manufactured belt-shaped positive electrode 10 is wound again.
[0039]
In this example, polyvinylidene fluoride (PVdF) dissolved in dimethyl carbonate (DMC) is added as a solid content of 20 parts by weight as an ion-conductive polymer for a positive electrode, and becomes 8 parts by weight. Thus, a lithium salt was added thereto, and ethylene carbonate (EC) and propylene carbonate (PC) were added thereto so as to be 72 parts by weight, and stirred while keeping the temperature to obtain a mixed solution. This mixed solution was continuously applied to both surfaces of the electrode current collector using a hot melt applicator. The applied mixed solution of the ion conductive polymer is impregnated into the voids inside the active material by drying, and at the same time, DMC, which is a low boiling point solvent, evaporates to form a rubbery gel polymer film. The ion conductive polymer is applied continuously. Thereafter, the positive electrode 10 with a strip-shaped lead terminal is wound again.
[0040]
The negative electrode 11 includes a negative electrode current collector 11a also formed in a band shape, and negative electrode mixture layers 11b and 11c applied to both surfaces of the negative electrode current collector 11a. As the negative electrode current collector 11a, for example, a copper foil having a thickness of 10 μm can be used. The negative electrode mixture layers 11b and 11c are formed by uniformly applying the negative electrode mixture slurry on both surfaces of the negative electrode current collector 11a. At this time, a blank portion is formed on one end in the longitudinal direction (end of winding) of the negative electrode current collector 11a so that the negative electrode mixture slurry is not applied over a certain range.
[0041]
As the negative electrode active material of the negative electrode mixture, for example, one or more types of negative electrode materials selected from alloys or compoundable materials or carbonaceous materials capable of doping (occluding) and undoping (desorbing) lithium are used. Can be. Examples of the negative electrode material capable of inserting and extracting lithium include a metal or semiconductor capable of forming an alloy or compound with lithium, or an alloy or compound thereof.
[0042]
These metals, alloys or compounds are represented, for example, by the chemical formula DsEtLiu. In this chemical formula, D represents at least one of a metal element and a semiconductor element capable of forming an alloy or a compound with lithium. E represents at least one of metal elements and semiconductor elements other than lithium Li and D. Further, the values of S, t, and u are s> 0, t ≧ 0, and u ≧ 0, respectively.
[0043]
Among them, a metal element or a semiconductor element which can form an alloy or a compound with lithium is preferably a Group 4B metal element or a semiconductor element, particularly preferably silicon or tin, and most preferably silicon. Further, these alloys or compounds are also preferable, and specifically, SiB ₄ , SiB ₆ , Mg ₂ Si, Mg ₂ Sn, Ni ₂ Si, TiSi ₂ , MoSi ₂ , CoSi ₂ , NiSi ₂ , CaSi ₂ , CrSi ₂ , Cu ₅ Si, FeSi ₂ , MnSi ₂ , NbSi ₂ , TaSi ₂ , VSi ₂ , WSi ₂ Or ZnSi ₂ And the like.
[0044]
Other examples of the negative electrode material capable of inserting and extracting lithium include a carbon material, a metal oxide, and a polymer material. Examples of the carbon material include natural graphite, non-graphitizable carbon, artificial graphite, cokes, graphites, glassy carbons, organic polymer compound fired bodies, carbon fibers, activated carbon, and carbon blacks. Among them, the cokes include pitch coke, needle coke, petroleum coke and the like. The organic polymer compound fired body is obtained by firing a polymer material such as phenols and furans at an appropriate temperature and carbonizing the material. Further, examples of the metal oxide include iron oxide, ruthenium oxide, molybdenum oxide, and tin oxide. Examples of the polymer material include polyacetylene and polypyrrole.
[0045]
A negative electrode mixture slurry is prepared using such a negative electrode active material. This negative electrode mixture slurry is obtained, for example, by adding 10 parts by weight of polyvinylidene fluoride (PVdF) dissolved in N-methyl-2-pyrrolidone to 90 parts by weight of natural graphite having a particle diameter of 5 to 25 μm (interlayer distance: 3.35 °). It was added so as to be in parts by weight, whereby an ink-like negative electrode slurry was obtained.
[0046]
The negative electrode mixture slurry is uniformly applied to both surfaces of the negative electrode current collector 11a such that a blank portion is formed at the end of the electrode winding. In this case, for example, a copper foil (current collector) having a width of 520 mm and a thickness of 15 μm is used as the negative electrode current collector 11a. The negative electrode current collector 11a is intermittently coated on both surfaces at a pitch of about 600 mm, and a metal foil exposed portion of about 30 mm to which no negative electrode slurry is applied is provided between each pitch. Then, after drying the negative electrode mixture slurry on both surfaces, compression molding is performed using a roller press. By cutting the rolled negative electrode material into a width of 78 mm, the negative electrode 11 having a band shape is formed. The negative electrode 11 was cut and wound, and then vacuum dried.
[0047]
The negative electrode reel is unwound, and a nickel terminal lead 16 is connected to the exposed portion of the metal foil. The size of the terminal lead 16 is, for example, 5 mm in width, 70 mm in length, and 100 μm in thickness, and is joined by ultrasonic welding so as to protrude 15 mm or more from the end face of the electrode. Thereafter, an insulating tape (polyimide tape: insulating material) having a width of 19 mm is attached to the front and back surfaces of the exposed metal foil to which the terminal leads 16 are welded. This insulating tape was attached to the terminal lead 16 protruding from the electrode end surface so as to cover 2 mm or more. The above steps are performed continuously, and the strip-shaped negative electrode 11 is wound again.
[0048]
In this example, the same mixed solution as that used for the above-described positive electrode 10 was used as the ion-conductive polymer for the negative electrode. This mixed solution is applied to both surfaces of the negative electrode current collector 11a using a hot melt applicator. The applied mixed solution of the ion conductive polymer is impregnated into the voids inside the active material by drying, and at the same time, DMC, which is a low boiling point solvent, evaporates to form a rubbery gel polymer film. The ion conductive polymer is applied continuously. Thereafter, the strip-shaped negative electrode 11 with a lead terminal is wound again.
[0049]
As the non-aqueous electrolyte, a liquid, solid, or gel electrolyte obtained by mixing or dissolving an electrolyte in a non-aqueous solvent, a solid electrolyte, a polymer electrolyte, or a polymer compound can be used. Therefore, the nonaqueous electrolyte secondary battery of the present invention is realized as a solid electrolyte secondary battery, a gel electrolyte secondary battery, a liquid electrolyte secondary battery, or the like, depending on the type of the nonaqueous electrolyte.
[0050]
Here, as the non-aqueous solvent, for example, ethylene carbonate, cyclic ester compounds such as γ-valerolactone, diethoxyethane, tetrahydrofuran, 2-methyltetrahydrofuran, ether compounds such as 1,3-dioxane, methyl acetate, methyl acetate, A chain ester compound such as methyl propylene, a chain carbonate such as dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, or 2,4-difluoroanisole, 2,6-difluoroanisole, 4-promoveratrol alone Alternatively, it can be used as a mixed solvent of two or more types.
[0051]
Further, as the polymer material used for the gel electrolyte, for example, polyacrylonitrile and a copolymer of polyacrylonitrile can be used. Examples of the copolymerizable monomer (vinyl monomer) include vinyl acetate, methyl methacrylate, butyl methacrylate, methyl acrylate, butyl acrylate, itaconic acid, hydrogenated methyl acrylate, hydrogenated ethyl acrylate, acrylamide, vinyl chloride, Examples include vinylidene fluoride and vinylidene chloride. Further, acrylonitrile butadiene rubber, acrylonitrile butadiene styrene resin, acrylonitrile chloride polyethylene propylene diene styrene resin, acrylonitrile vinyl chloride resin, acrylonitrile methacrylate resin, acrylonitrile acrylate resin and the like can be used.
[0052]
Further, as the polymer material used for the gel electrolyte, polyvinylidene fluoride and a copolymer of polyvinylidene fluoride can be used. And as a copolymerization monomer, hexafluoropropylene, tetrafluoroethylene, etc. can be mentioned, for example. In addition, as the polymer material used for the gel electrolyte, these can be used alone or in combination of two or more.
[0053]
To form the gel electrolyte layer, as a non-aqueous solvent, for example, ethylene carbonate, propylene carbonate, butylene carbonate, vinylene carbonate, γ-butyl lactone, cyclic ester compounds such as γ-valerolactone, diethoxyethane, tetrahydrofuran , 2-methyltetrahydrofuran, ether compounds such as 1,3-dioxane, chain ester compounds such as methyl acetate and methyl propylene acid, chain carbonates such as dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, and 2,4. -Difluoroanisole, 2,6-difluoroanisole, 4-promoveratrol and the like can be used alone or as a mixed solvent of two or more kinds.
[0054]
Further, in the gel electrolyte layer, when polyvinylidene fluoride is used as the gel electrolyte, polyhexafluoropropylene, polytetrafluoroethylene or the like is used by using a gel electrolyte made of a multi-component polymer copolymerized. Preferably, it is formed. Thereby, a gel electrolyte having higher mechanical strength can be obtained.
[0055]
As the electrolyte salt, for example, LiPF ₆ , LiAsF ₆ , LiBF ₄ , LiClO ₄ , LiCF ₃ SO ₃ , LiN (CnF _{2n + 1} SO ₂ ) ₂ , LiC ₄ F ₉ SO ₃ Can be used alone or in combination of two or more. The addition amount of the electrolyte salt may be adjusted so that the molar concentration in the non-aqueous electrolyte in the gel electrolyte is 0.8 to 2.0 mol / liter so that good ionic conductivity is obtained. preferable.
[0056]
As the separators 12 and 13, for example, a microporous polypropylene film can be used. The thickness of the separators 12 and 13 is about 25 μm, and these are interposed between the positive electrode mixture layers 10b and 10c and the negative electrode mixture layers 11b and 11c. That is, the positive electrode terminal lead 15 and the negative electrode terminal lead 16 are arranged so as to be parallel to each other on the inner peripheral side, and the negative electrode 11, the separator 12, the positive electrode 10, and the separator 13 are laminated in this order and wound from one end to the other end. Let it turn. Then, after flattening by pressing from the side, the winding end portion is fixed using an adhesive tape or the like. Thereby, a flat spirally wound electrode body 5 is manufactured.
[0057]
As shown in FIGS. 7 and 8, the wound electrode body 5 manufactured as described above is housed in the exterior body 6 in a state where the tip ends of the two terminal leads 15 and 16 are led out to the outside. The surrounding contact surfaces are heat-sealed and sealed. As a material of the exterior body 6, for example, an aluminum laminated film can be used.
[0058]
Examples of the film-shaped outer case include the following.
As the structure of the laminate film, for example, the following materials can be used. Here, the following abbreviations are used as the plastic materials used.
That is, polyethylene terephthalate: PET, molten polypropylene: PP, undrawn polypropylene: CPP, polyethylene: PE, low-density polyethylene: LDPE, high-density polyethylene: HDPE, linear low-density polyethylene: LLDPE, nylon: Ny. The abbreviation AL is used for aluminum as a metal material used as a moisture-permeable barrier film.
[0059]
The most common configuration is exterior layer / metal film / sealant layer = PET / AL / PE. In addition to this combination, other general laminated film configurations shown below can be employed.
That is, exterior layer / metal film / sealant layer = Ny / AL / CPP, PET / AL / CPP, PET / AL / PET / CPP, PET / Ny / AL / CPP, PET / Ny / AL / Ny / CPP, PET / Ny / AL / Ny / PE, Ny / PE / AL / LLDPE, PET / PE / AL / PET / LDPE, or PET / Ny / AL / LDPE / CPP. It is needless to say that a metal other than AL can be used as the metal film.
[0060]
This film material is formed into a wide rectangular shape, and is folded in two at the center in the longitudinal direction to form a main body piece 6a and a lid piece 6b. An edge of an appropriate width is provided on the other three sides except the bent side of the main body piece 6a, and a bulging portion 18 which bulges to one side is provided inside the edge.
[0061]
The bulging portion 18 can be formed, for example, by subjecting the main body piece 6a to deep drawing so as to match the outer shape of the wound electrode body 5. A power generation element housing portion 19 for housing the wound electrode body 5 is formed by a concave portion provided on the other surface of the bulging portion 18. After the wound electrode body 5 is housed in the power generation element housing part 19, the lid piece 6b is overlaid on the main body piece 6a. Thereby, the wound electrode body 5 is wrapped by the main body piece 6a and the lid piece 6b.
[0062]
Next, an edge portion of the side of the main body piece 6a facing the bent side and a peripheral portion of one side of the lid piece 6b superposed thereon are fixed by fixing means such as heat welding. As a result, both the positive and negative terminal leads 15, 16 are bent in a crank shape by the side surface of the power generation element housing portion 19, and the bent portions 15a. 16a and the leading-side drawers 15b and 16b are formed. And the base side of each drawer part 15b, 16b is sandwiched between the main body piece 6a and the lid piece 6b, and is closely adhered.
[0063]
Thereafter, the remaining two sides of the main body piece 6a and the lid piece 6b, that is, the two side edges facing the side surface orthogonal to the bent side, and the peripheral edges of the two sides of the lid piece 6b superposed thereon Is sealed using a vacuum heat sealer and fixed. As a result, the periphery of the bulging portion 18 of the exterior body 6 is brought into close contact, and the wound electrode body 5 having the leading ends of the two lead-out portions 15b and 16b led out is sealed to the exterior body 6.
[0064]
After sealing the wound electrode body 5 by sealing the three sides of the exterior body 6 in this manner, the sealing portions on the two sides on the side surface of the exterior body 6 are partially connected to the root of the bulging portion 18 and the middle of the sealing portion. At the two places with the part, it is bent twice by approximately 90 degrees toward the bulging part 18 side. Thereby, as shown in FIG. 8, two parallel enclosing walls 20, 20 are formed by folding the two sides of the seal portion into two and overlapping each other. The height of the surrounding wall 20 is set to be substantially the same as the height of the bulging portion 18. The control circuit unit 7 and a part of the connector 8 are housed in a concave portion 21 surrounded by the two surrounding walls 20 and 20 and the front surface of the bulging portion 18.
[0065]
By the above steps, the exterior body 6 in which the power generation element is housed is, for example, 84.5 mm in length L1 excluding the terminal leads 15 and 16 and 51.0 mm in width B in the direction orthogonal to the length L1. It was manufactured with a thickness H in the direction orthogonal to 3.0 mm. At this time, the length L0 of the concave portion 21 of the exterior body 6, that is, the length from the crank-shaped bent portions 15a, 16a of the terminal leads 15, 16 to the edge of the exterior body 6 is 4.5 mm. The exterior body 6 is configured to have a certain degree of rigidity so that the operation of attaching and detaching the connector to and from the socket can be realized. The rigidity of the exterior body 6 may be configured to have strength by covering the exterior body 6 with a reinforcing cover.
[0066]
Further, the control circuit unit 7 housed in the concave portion 21 of the exterior body 6 controls current, voltage, and the like during charging and discharging of the spirally wound electrode body 5 so that appropriate charging and discharging are performed. At the same time, it is possible to prevent a problem that a voltage equal to or more than a predetermined amount is stored in the wound electrode body 5 and a current equal to or more than a predetermined amount is discharged from the wound electrode body 5. For this reason, as shown in FIG. 6, the control circuit unit 7 is provided with a charge control FET 30, a discharge control FET 31, a protection circuit 32 for controlling these control FETs 30 and 31 and preventing other problems from occurring. ing.
[0067]
The charge control FET 30 of the control circuit unit 7 is a specific example of a charge detection unit. The charge control FET 30 measures a voltage value at the time of charging, and based on the voltage value, the charged amount of the wound electrode body 5 is a predetermined amount (full charge). , Or whether the charged amount is equal to or less than a predetermined amount or not less than a predetermined amount. Further, the discharge control FET 31 is a specific example of the discharge detecting means. The discharge control FET 31 measures a voltage value at the time of discharge, and the discharge amount of the wound electrode body 5 reaches a predetermined amount (discharge end) based on the voltage value. Or whether the discharge amount is equal to or less than a predetermined amount or equal to or more than the predetermined amount. The protection circuit 32 controls the charge current or the discharge current based on the detection results of the charge control FET 30 and the discharge control FET. Further, the protection circuit 32 detects a current value, a voltage value, and the like at the time of charging and discharging, and prevents the occurrence of other problems related to charging or discharging of the spirally wound electrode body 5.
[0068]
As shown in FIGS. 1 to 3, the control circuit unit 7 includes a wiring board 23 on which predetermined wiring is printed, a microcomputer mounted on the wiring board 23, a storage device (ROM or RAM), a capacitor, And other electronic components 24. The two terminal leads 15 and 16 of the spirally wound electrode body 5 are electrically connected to the wiring board 23 of the control circuit unit 7, respectively. As shown in FIG. 3, the size of the control circuit unit 7 is, for example, a length C in the longitudinal direction (the width direction of the exterior body 6 when mounted on the concave portion 21) of 44.4 mm, which intersects the longitudinal direction. In this case, the width in the direction M is set to 5.1 mm (the longitudinal direction of the exterior body 6 when mounted in the recess 21), and the thickness in the direction orthogonal to these is set to 3.3 mm.
[0069]
In order to connect the two terminal leads 15 and 16 to the wiring board 23, seat tabs 25 are fixed to the respective ends of the two lead portions 15b and 16b by fixing means such as welding. One end of each of the seat tabs 25 is fixed to each of the distal ends of the drawers 15b and 16b, and the other ends of the seat tabs 25 extend outward so as to be separated from each other. A wiring board 23 is placed on the two seat tabs 25 so that both sides overlap each other. By welding each seat tab 25 to the wiring board 23, the two terminal leads 15 and 16 are connected to the wiring board 23. Connected to electrical circuit. Reference numeral 23a denotes a through hole provided in the wiring board 23, and a terminal lead in which a wiring pattern formed on one surface of the wiring board 23 by solder applied to the inside of the through hole contacts the other surface of the wiring board 23. It is electrically connected to 15 and 16.
[0070]
The connector 8 has a shape and configuration as shown in FIGS. That is, the connector 8 is formed of a horizontally long block-shaped member, and a fitting portion 8a that fits into the concave portion 21 of the exterior body 6 is provided at a rear portion in a width direction crossing the longitudinal direction. . The fitting portion 8a of the connector 8 removes both sides thereof by the thickness of the surrounding wall 20 of the exterior body 6 and removes the bottom side by the thickness of the overlapping portion of the exterior body 6 and the thickness of the control circuit section 7. It is formed by doing. By fitting this fitting portion 8a into the concave portion 21 in which the control circuit portion 7 is housed, the upper surface of the connector 8 becomes substantially the same height as the upper surface of the outer package 6, and the lower surface of the connector 8 becomes 6 are formed at substantially the same position as the lower surface.
[0071]
The front portion of the connector 8 is formed to have the same shape and size as the corresponding connector-side portion of the PC card. That is, on the front surface of the connector 8, 68 connection holes 26 into which terminal pins of a socket are inserted are arranged in two stages in the height direction and 34 in the width direction, as in the case of the PC card connector. They are provided with the same shape and size at corresponding positions. The connection terminals are provided inside the connection holes 26, and these connection terminals are connected to the wiring pattern of the wiring board 23 by a number of lead wires 27.
[0072]
Further, erroneous mounting prevention means for preventing the connector 8 from being inserted into the PC card slot and being mounted in the socket in an incorrect state (incorrect posture) is provided on both left and right sides of the connector 8. I have. The erroneous mounting prevention means includes a cutout portion 28a provided on one side of the connector 8 in the longitudinal direction, and a key groove portion 28b provided on the other side. The notch portion 28a and the key groove portion 28b correspond to the notch portion 4a and the key groove portion 4b of the PC card 2 shown in FIG. 10, and have the same shape and size.
[0073]
That is, the notch 28a is formed as a notch that opens from the front surface to the upper surface. On the other hand, the key groove portion 28b is formed as a long groove that opens from the front surface to the side surface at a substantially central portion in the thickness direction. A projection or a projection provided on a socket of a PC card slot (not shown) of a desired electronic device is slidably engaged with the notch portion 28a and the key groove portion 28b, and the shapes of the notch portion 28a and the key groove portion 28b are formed. By using the difference, the PC card 2 is prevented from being inserted into the PC card slot in a state where the PC card 2 is erroneously turned up and down (front and back).
[0074]
Although not shown, one or both of the cutout portion 28a and the key groove portion 28b may be provided with an erroneous discharge preventing means for preventing erroneous discharge of the wound electrode body 5. The erroneous discharge prevention means is for preventing the rated output of the non-electrolyte secondary battery 1 from breaking electronic components of the electronic device provided on the socket side. In general, the rated output of the non-electrolyte secondary battery 1 is larger than that of a general secondary battery or a primary battery. If the electronic component is not configured to withstand the electrical discharge, the electronic component may be destroyed by normal discharge.
[0075]
Therefore, the erroneous discharge prevention means prevents the electronic components on the socket side from being destroyed even by the normal discharge of the non-electrolyte secondary battery 1. The erroneous discharge preventing means includes, for example, switch means provided in the notch portion 28a or the key groove portion 28b, and fitting operation means for turning on / off the switch means to open and close the electric circuit of the connector 8. Can be. The fitting operation means can be formed, for example, as a projection or a projection provided at a position corresponding to the cutout portion 28a or the key groove portion 28b in a socket in which measures for preventing erroneous discharge are taken.
[0076]
By the projections or projections serving as the fitting operation means, the switch means is turned on or off when the non-electrolyte secondary battery 1 is inserted. Thereby, when the socket of the PC card slot has a countermeasure against erroneous discharge, when the non-electrolyte secondary battery 1 is inserted into the PC card slot, the projection or projection automatically switches the switch means. As a result, the current is sharply flown from the spirally wound electrode body 5 side to the socket side. In this case, the rated output of the non-electrolyte secondary battery 1 suddenly acts on the socket side. However, since the socket side has a countermeasure taken, the electronic components on the socket side are non-electrolyte secondary batteries. There is no risk of being damaged by receiving the rated output of the battery 1.
[0077]
On the other hand, when the socket of the PC card slot is not provided with the erroneous discharge prevention measure, even if the non-electrolyte secondary battery 1 is inserted into the PC card slot, the fitting operation means is switched by the switch means. And the switch means is kept closed. Therefore, no current flows from the wound electrode body 5 side to the socket side, so that the electronic components on the socket side are not broken by the rated output of the non-electrolyte secondary battery 1.
[0078]
The connector 8 having such a configuration is fitted into the concave portion 21 of the exterior body 6 in which the control circuit unit 7 is housed, and these are integrally fixed using a fixing means such as an adhesive. As a result, the entire shape and size are kept within the standard dimensions of the PC card, and the non-electrolyte secondary battery 1 having the connector 8 having the same shape and size as the connection portion is obtained. For example, a PC card conforming to the JEITA standard can be obtained by setting the length to which the connector 8 is added to 85.6 mm, the width in the direction intersecting with the connector 8 to 54.0 mm, and the thickness in the direction orthogonal to these to 5.0 mm. Type II can be obtained.
[0079]
Note that the battery assembly in which the connector 8 is coupled to the exterior body 6 may be configured such that the outside thereof is covered with a hard cover so as to have rigidity as a whole. In this case, the notch 28a and the key groove 28b are provided in a state where the connector 8 is exposed or covered with a cover.
[0080]
According to the non-electrolyte secondary battery 1 having such a configuration, a PC card as a storage medium is substituted, and the PC card slot is inserted into the same PC card slot and the connector 8 is attached to the socket, so that the portable or spare battery can be used. It can be used as a power supply device. Moreover, since the existing PC card slot can be used as a housing for the power supply device, it can be used as a power supply device in a place where AC power cannot be easily obtained without impairing portability. In such information devices, the fear of losing data due to battery exhaustion can be resolved. In addition, the information device such as a personal computer can be used as a power supply device in an emergency evacuation to extend the usage time.
[0081]
In the first embodiment described above, an example in which the present invention is applied to the non-electrolyte secondary battery 1 having a shape and a size corresponding to the standard of the PC card has been described. Needless to say, it can be realized as a non-electrolyte secondary battery having high durability. For example, by configuring as follows, it can also be realized as a small PC card according to the JEITA standard.
[0082]
As a second embodiment of the present invention, for example, the length of the wound electrode body 5 excluding the terminal lead is 43.0 mm, except for the slurry intermittent application pitch and the cutting width of the raw material, in the same manner as in the above embodiment. The width is 39.0 mm and the thickness is 3.0 mm. The depth of the concave portion 21 of the exterior body 6 in which the spirally wound electrode body 5 is sealed is 4.5 mm. The control circuit unit 7 accommodated in the concave portion 21 has, for example, a length C in the longitudinal direction (the width direction of the exterior body 6 when mounted on the concave portion 21) of 39.0 mm and a width of M (in the concave portion 21). In the mounted state, the outer body 6 is formed to have a length of 5.0 mm in the longitudinal direction and a thickness of 3.3 mm in a direction orthogonal to these. The two terminal leads 15 and 16 and the connector 8 are electrically connected to the control circuit unit 7 to integrate them.
[0083]
The battery assembly thus configured is covered with a cover having appropriate rigidity, and the overall shape and size are 45.0 mm in length including the connector 8 and the width in the direction intersecting with this is 42.5 mm. 8 mm, and the thickness in the direction orthogonal to these directions is 5.0 mm. Accordingly, it corresponds to the small PC card type II according to the JEITA standard, and the entire shape and size are contained within the standard size of the small PC card, and a connector having the same shape and size as the connection portion is provided. A non-electrolyte secondary battery is obtained.
[0084]
FIG. 11 shows a third embodiment of the present invention. The non-electrolyte secondary battery 40 shown in the third embodiment is configured to correspond to a semiconductor storage medium generally called a memory card. The configuration of the non-electrolyte secondary battery 40 is the same as that of the above-described non-electrolyte secondary battery 1 and includes an outer package 6, a control circuit unit not shown in the drawing, and a connector 41. The different point is the shape and structure of the connector 41. Therefore, hereinafter, only the connector 41 will be described, and description of the exterior body 6 and the control circuit unit will be omitted.
[0085]
As shown in FIG. 11, the connector 41 of the non-electrolyte secondary battery 40 is formed of a substantially rectangular flat block-shaped member, and one side thereof has a fitting portion 41 a fitted to the concave portion 21 of the exterior body 6. Is provided. The fitting portion 41a of the connector 41 has both sides removed by the thickness of the surrounding wall 20 of the exterior body 6, and the label surface (front side), which does not appear in the drawing, is controlled to the thickness of the overlapping portion of the exterior body 6. It is formed by removing the thickness of the circuit portion 7. By fitting the fitting portion 41a into the recess 21 in which the control circuit portion 7 is housed, the back surface of the connector 41 (the surface appearing in the figure) has substantially the same height as the back surface of the exterior body 6. The connector 41 is formed such that the surface of the connector 41 is substantially flush with the surface of the exterior body 6.
[0086]
A guide portion 42 having a curved surface that is gently curved from the front to the side surface is formed at one of the front corners of the connector 41, and the back surface of the guide portion 42 forms one of erroneous mounting prevention means. A notch 43a is provided. The other front corner of the connector 41 is provided with a key groove 43b which is the other of the erroneous mounting prevention means. The notch 43a and the key groove 43b can prevent erroneous mounting of the non-electrolyte secondary battery 40 in a storage media slot provided in an external electronic device due to an error in a vertical or front-rear direction.
[0087]
In addition, an opening 44 exposing a predetermined number of connection terminals for connection to the socket of the storage media slot is provided at the front of the connector 41. The opening 44 is open from the front surface facing the socket to the back surface, which is one flat surface. The opening 44 is partitioned by a plurality of partition pieces 45 extending in the front-rear direction, and connection terminals are provided in each of the sections partitioned by the partition pieces 45. These connection terminals are connected to the control circuit unit 7 housed in the recess 21 via lead wires.
[0088]
Other configurations of the non-electrolyte secondary battery 40 including the connector 41 having such a configuration are the same as those of the above-described first embodiment. Further, the method of using the non-electrolyte secondary battery 40 is the same as that of the first embodiment. In this case, a personal computer or the like showing a specific example of an external electronic device needs to have a storage medium slot and a socket in which a memory stick as a storage medium corresponding to this embodiment can be removably mounted. Thus, the same operation and effect as those of the first embodiment can be obtained also in the non-electrolyte secondary battery 40 shown as the third embodiment.
[0089]
As described above, the present invention is not limited to the above embodiment. For example, in the above embodiment, a shape and a size corresponding to each standard of a PC card, a small PC card, and a memory stick are used as storage media. The description has been given of the non-electrolyte secondary batteries 1 and 40 having a shape and a size corresponding to each standard of other storage media such as an SD memory card, a multimedia card, a smart media, and a compact flash (registered trademark). Of course, it can be applied to a non-electrolyte secondary battery having As described above, the present invention can be variously modified without departing from the spirit thereof.
[0090]
【The invention's effect】
As described above, according to the non-electrolyte secondary battery according to claim 1 of the present application, since the control circuit unit and the connector are integrally formed by fixing the power generation element to the hermetically sealed exterior body, It can be used in place of a medium, and can be used as a portable or emergency power supply by using it in the same manner as a storage medium. Therefore, in places where AC power is not easily obtained, it can be used as a portable power supply or an emergency power supply for electronic devices in consideration of portability and portability of electronic devices such as notebook computers, It is possible to obtain an effect that data loss due to running out of battery of the battery can be avoided, use time can be extended, and the like.
[0091]
According to the non-electrolyte secondary battery according to claim 2 of the present application, since a predetermined number of connection terminals are exposed on the front surface of the connector and erroneous mounting prevention means for preventing erroneous mounting on both sides of the front surface are provided, It can be used as a portable or emergency power supply for an electronic device that uses the PC card, and can be used in the same manner as a PC card showing a specific example of a storage medium. It is possible to obtain an effect that it is possible to reliably prevent the device from being mounted in a state.
[0092]
According to the non-electrolyte secondary battery according to claim 3 of the present application, since the erroneous mounting prevention means is provided with the erroneous discharge prevention means, the storage medium is switched from the power generation element only when current can flow to the electronic device. An electric current can be caused to flow through the socket of the slot, and the electronic component on the electronic device side can be prevented from being broken by an excessive electric current supplied from the power generating element.
[0093]
According to the non-electrolyte secondary battery according to claim 4 of the present application, the erroneous discharge prevention means is constituted by the switch means and the fitting operation means. The electronic component can be prevented from being destroyed by an excessive current supplied from the power generating element.
[0094]
According to the non-electrolyte secondary battery according to claim 5 of the present application, a predetermined number of connection terminals are exposed from the opening portion that is continuously opened from the front surface of the connector and are erroneously fitted to both sides of the front surface. Since the memory stick is provided with the prevention means, the storage medium can be used as a portable or emergency power supply of an electronic device using the memory stick in the same manner as a memory stick showing another specific example of the storage medium, and the storage medium of the electronic device can be used. Can be reliably prevented from being mounted in an incorrect state.
[0095]
According to the non-electrolyte secondary battery according to claim 6 of the present application, since the erroneous mounting preventing means is provided with the erroneous discharging preventing means, the storage medium can be transferred from the power generating element only when a current can flow to the electronic device. An electric current can be caused to flow through the socket of the slot, and the electronic component on the electronic device side can be prevented from being broken by an excessive electric current supplied from the power generating element.
[0096]
According to the non-electrolyte secondary battery according to claim 7 of the present application, the erroneous discharge prevention means is constituted by the switch means and the fitting operation means. The electronic component can be prevented from being destroyed by an excessive current supplied from the power generating element.
[0097]
According to the non-electrolyte secondary battery according to claim 8 of the present application, the control circuit unit is configured to include at least one of the charge detection unit and the discharge detection unit. It is possible to obtain an effect that it is possible to eliminate the possibility of discharging a predetermined amount or more.
[0098]
According to the non-electrolyte secondary battery according to the ninth aspect of the present invention, the control circuit portion is housed in the concave portion of the exterior body, and the opening side of the concave portion is covered with the connector to be integrally formed. It is possible to provide a non-electrolyte secondary battery which can be used in place of the storage medium of the present invention, and which can be provided with portability corresponding to the miniaturization and thinning of the electronic device and coping with urgency. it can.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment of a non-electrolyte secondary battery of the present invention, in which an outer package, a control circuit unit, and a connector are disassembled.
FIG. 2 is a perspective view of a non-electrolyte secondary battery according to a first embodiment of the present invention in an assembled state.
FIG. 3 shows the first embodiment of the non-electrolyte secondary battery of the present invention, and is an explanatory view of a disassembled outer package, a control circuit unit, and a connector as viewed from a plane side.
FIG. 4 is an explanatory view showing a first embodiment of the non-electrolyte secondary battery of the present invention, as viewed from the front side.
FIG. 5 is a view showing a first embodiment of the non-electrolyte secondary battery of the present invention, and is an explanatory view showing a relationship among an outer package, a control circuit section, and a connector.
FIG. 6 is a block diagram showing a circuit configuration of an electric circuit according to a first example of the non-electrolyte secondary battery of the present invention.
FIG. 7 is a view showing a first embodiment of the non-electrolyte secondary battery of the present invention, and is a view showing a state in which a power generation element is housed in an exterior body.
FIG. 8 is a perspective view showing a first embodiment of the non-electrolyte secondary battery of the present invention, showing a state in which a power generation element is housed in an outer package and sealed.
FIG. 9 is an explanatory diagram showing a power generating element according to a first embodiment of the non-electrolyte secondary battery of the present invention.
FIG. 10 is a perspective view showing an example of a storage medium corresponding to the first embodiment of the non-electrolyte secondary battery of the present invention.
FIG. 11 is a perspective view of a non-electrolyte secondary battery according to a third embodiment of the present invention in an assembled state.
[Explanation of symbols]
1,40 polymer lithium ion secondary battery (non-electrolyte secondary battery), 2 PC card, 5 power generation element, 6 exterior body, 7 control circuit section, 8 connector, 8a fitting section, 15,16 terminal lead, 18 expansion Outgoing part, 19 Power generation element storage part, 20 Enclosure wall, 23 Wiring board, 26 Connection hole, 28a, 43a Notch part (error mounting prevention means), 28b, 43b Key groove (error mounting prevention means), 30 Charge control FET (Charge detecting means), 31 Discharge control FET (discharge detecting means), 32 Protection circuit, 44 Opening, 45 Partition piece

Claims (9)

A power generating element capable of charging and discharging and having terminal leads for charging and discharging,
An exterior body for housing and sealing the power generation element in a state where the terminal leads are led out,
A control circuit unit connected to the terminal lead outside the exterior body and performing control during the charging and discharging,
A predetermined number of connection terminals electrically connected to the control circuit unit and detachably connected to a socket for a storage medium provided in an external electronic device; A connector having a shape and size determined by
A non-electrolyte secondary battery, wherein the connector and the control circuit section are fixed to the exterior body and provided integrally. The connector has a predetermined number of connection holes on a front surface facing the socket, the connection holes exposing the predetermined number of connection terminals for connection to the socket. 2. The non-electrolyte secondary battery according to claim 1, further comprising means for preventing erroneous mounting. 3. The non-electrolyte secondary according to claim 2, wherein the erroneous mounting prevention means includes erroneous discharge prevention means for supplying a current only when a current discharged from the power generating element can flow to the socket. battery. The erroneous discharge preventing means includes a switch provided on the connector, and a fitting operation provided on the socket and operating the switch to flow a current when the connector is normally fitted to the socket. 4. The non-electrolyte secondary battery according to claim 3, comprising: The connector has an opening that is continuously opened in a plane from a front surface facing the socket and exposes the predetermined number of connection terminals for connection to the socket. 2. The non-electrolyte secondary battery according to claim 1, further comprising means for preventing erroneous mounting on the socket. 6. The non-electrolyte secondary according to claim 5, wherein the erroneous mounting prevention means includes erroneous discharge prevention means for supplying a current only when a current discharged from the power generating element can flow to the socket. battery. The erroneous discharge preventing means includes a switch provided on the connector, and a fitting operation provided on the socket and operating the switch to flow a current when the connector is normally fitted to the socket. The non-electrolyte secondary battery according to claim 6, comprising: The control circuit unit includes at least one of charge detection means for detecting that the power generation element is charged by a predetermined amount or more and discharge detection means for detecting that the power generation element is discharged by a predetermined amount or more. The non-electrolyte secondary battery according to claim 1, wherein: The control circuit unit is housed in a recess provided in the exterior body, the opening side of the recess is covered with the connector, and the entire exterior body and the connector are formed in a shape and size determined by the standard of the storage medium. 2. The non-electrolyte secondary battery according to claim 1, wherein the non-electrolyte secondary battery is formed.

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