CN106601935A - Micro-miniature hard shell lithium battery and processing method thereof - Google Patents
Micro-miniature hard shell lithium battery and processing method thereof Download PDFInfo
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- CN106601935A CN106601935A CN201611248040.3A CN201611248040A CN106601935A CN 106601935 A CN106601935 A CN 106601935A CN 201611248040 A CN201611248040 A CN 201611248040A CN 106601935 A CN106601935 A CN 106601935A
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- hard shell
- lithium battery
- microminiature
- conductor
- sealing gasket
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 46
- 238000003672 processing method Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 239000004020 conductor Substances 0.000 claims description 47
- 230000007306 turnover Effects 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Primary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a micro-miniature hard shell lithium battery and a processing method thereof. The battery comprises a hard shell at least having a top opening, and a seal pad used for sealing the hard shell at the top opening; a fixing edge used for realizing seamless connection of the hard shell and the seal pad extends into the hard shell from the top opening; the fixing edge and the hard shell form an integral structure; and the fixing edge is formed by folding and processing the hard shell inwards. According to the novel micro-miniature hard shell lithium battery provided by the invention, the diameter can be smaller than 4mm, the height is less than 8mm, the volume energy density can reach 450Wh/L, and the mass energy density can reach 30Wh/kg, so that the performance level of the novel micro-miniature hard shell lithium battery is higher than that of domestic and overseas micro-miniature hard shell lithium batteries at present; and in the seal way, the energy density is increased, high and low-temperature environment change can be kept, and the seal performance is not changed.
Description
Technical field
The present invention relates to cell art, more particularly to a kind of microminiature duricrust lithium battery and microminiature duricrust lithium electricity
The processing method in pond.
Background technology
At present, in small battery seal aspect, there are three technique directions, one is using the soft encapsulation skill of lithium ion battery
Art, two is that, using half Semi-seal structure for detaining side formula, three are sealed using the mode with a tight waist of ultracapacitor.
Using the soft encapsulation technology of lithium ion battery, maximum volume energy density is about 270Wh/L, volume energy density
Low, technique is difficult to.
Sealed using half button side mode, biggest quality energy density is about 10Wh/kg, and mass energy density is low, sealing
Equipment precision requirement is high, high cost.
Using the sealing means with a tight waist of ultracapacitor, biggest quality energy density is about 9Wh/kg, is not suitable for
Battery containing lithium composition, has high demands to joint filling material and sealing device, there is potential safety hazard in processing procedure.
The content of the invention
It is an object of the present invention to：A kind of microminiature duricrust lithium battery is provided, its encapsulation is different from prior art
Encapsulating structure, the problems referred to above of the prior art can be solved.
Further object is that：The processing method that battery in a kind of microminiature duricrust is provided, for processing
State battery.
It is that, up to this purpose, the present invention is employed the following technical solutions：
On the one hand, there is provided a kind of microminiature duricrust lithium battery, including at least have an open-topped hard shell with
And for sealing the sealing gasket of the hard shell in the top open part, in the top open part to the hard shell
Inside be extended with fixed edge for realizing the hard shell and the seamless connection of the sealing gasket, the fixed edge and institute
State hard shell to be structure as a whole by the way that the hard shell is internally turned down into processing formation.
As a kind of optimal technical scheme of described microminiature duricrust lithium battery, in the hard shell pole is provided with
Group, the pole group includes negative electrode, anode and the barrier film being arranged between the negative electrode and the anode, and the negative electrode is connected with
First conductor, the anode is connected with the second conductor, and first conductor both passes through the sealing gasket and prolongs with second conductor
Extend the outside of the hard shell.
As a kind of optimal technical scheme of described microminiature duricrust lithium battery, it is provided with making on the sealing gasket
First through hole that first conductor passes through and the second through hole that second conductor passes through can be made, the first through hole with
Second through hole is separately arranged.
As a kind of optimal technical scheme of described microminiature duricrust lithium battery, between the sealing gasket and the pole group
Teleblem is provided with, it is corresponding with the first through hole on the teleblem to be provided with the first installing hole, with second lead to the hole site
Corresponding to be provided with the second installing hole, first conductor sequentially passes through first installing hole and extends to outside the hard
The outside of shell, second conductor sequentially passes through second installing hole and second through hole extends to the hard shell
Outside.
As a kind of optimal technical scheme of described microminiature duricrust lithium battery, also including being arranged on the hard shell
Internal counterdie, the counterdie is located between the housing and the pole group, for prevent the negative electrode and the anode with
The hard shell contact is short-circuited.
Used as a kind of optimal technical scheme of described microminiature duricrust lithium battery, the surface of the hard shell is simultaneously located at
The fixed edge is provided with fluid sealant away from the side of the sealing gasket.
On the other hand, there is provided a kind of processing method of microminiature duricrust lithium battery, there is provided at least with open-topped hard
Matter shell, to load in the hard shell and block the open top using sealing gasket after the group of pole, and by the open top
The hard shell edge in all portions at place internally turns down the seamless connection for realizing the hard shell and the sealing gasket.
As a kind of optimal technical scheme of the processing method of described microminiature duricrust lithium battery, by the open top
The hard shell edge in all portions at place is internally turned down including preliminary turnover and secondary turnover, is turned down Jing after turning down twice
Hard shell edge is perpendicular with the hard shell week portion not turned down, it is described it is preliminary turnover be by the hard shell edge to
30 ° -60 ° of inner side turnover.
As a kind of optimal technical scheme of the processing method of described microminiature duricrust lithium battery, by the open top
The hard shell edge in all portions internally turn down and carried out using sealed piece.
As a kind of optimal technical scheme of the processing method of described microminiature duricrust lithium battery, by the hard shell
Fluid sealant is set on its surface after the completion of edge turnover.
Beneficial effects of the present invention are：The new duricrust Miniature lithium cell that the present invention is provided, diameter is smaller than 4mm, high
Degree is less than 8mm, and volume energy density can reach as 450Wh/L, and mass energy density can reach 30Wh/kg, higher than the current country
Outer duricrust Miniature lithium cell performance level；Using this sealing means, energy density is not only improved, high/low temperature can also be kept
Environmental change, sealing property does not change；This kind of sealing means simple operationss, without the need for expensive device, are easy to operation, cost
It is low, it is easy to expansion equipment appropriate products scope, sealing operation also can be carried out to large-sized battery.
Description of the drawings
The present invention is described in further detail below according to drawings and Examples.
Fig. 1 is microminiature duricrust lithium battery schematic diagram described in the embodiment of the present invention one.
Fig. 2 is microminiature duricrust lithium battery schematic diagram described in the embodiment of the present invention two.
Fig. 3 is microminiature duricrust lithium battery schematic diagram described in the embodiment of the present invention three.
Fig. 4 is microminiature duricrust lithium battery schematic diagram described in the embodiment of the present invention four.
Fig. 5 is microminiature duricrust lithium battery schematic diagram described in the embodiment of the present invention five.
Fig. 6 is each step view of processing method of microminiature duricrust lithium battery described in the embodiment of the present invention five.
In figure：
1st, hard shell；2nd, pole group；3rd, sealing gasket；4th, fixed edge；5th, the first conductor；6th, the second conductor；7th, teleblem；8th, bottom
Film；9th, fluid sealant.
Specific embodiment
For make present invention solves the technical problem that, the technical scheme that adopts and the technique effect that reaches it is clearer, below
Accompanying drawing will be combined to be described in further detail the technical scheme of the embodiment of the present invention, it is clear that described embodiment is only
It is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those skilled in the art exist
The every other embodiment obtained under the premise of creative work is not made, the scope of protection of the invention is belonged to.
In describing the invention, unless otherwise clearly defined and limited, term " connected ", " connection ", " fixation " is answered
It is interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be mechanically connected,
It can be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the company of two element internals
The interaction relationship of logical or two elements.For the ordinary skill in the art, can understand above-mentioned with concrete condition
Term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to be not directly contact but by it including the first and second features
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Embodiment one:
As shown in figure 1, in the present embodiment, a kind of microminiature duricrust lithium battery of the present invention, including at least having
One open-topped hard shell 1 and the sealing gasket 3 for sealing the hard shell 1 in the top open part, in
The top open part to the inside of the hard shell 1 is extended with for realizing the hard shell 1 with the sealing gasket 3
The fixed edge 4 of seamless connection, the fixed edge 4 is structure as a whole by the way that the hard shell 1 is inside with the hard shell 1
Portion's turnover processing is formed.
Be provided with pole group 2 in the hard shell 1, the pole group 2 include negative electrode, anode and be arranged on the negative electrode with
Barrier film between the anode, the negative electrode is connected with the first conductor 5, and the anode is connected with the second conductor 6, and described first leads
Body 5 both passes through the outside that the sealing gasket 3 extends to the hard shell 1 with second conductor 6.
The new duricrust Miniature lithium cell that the present invention is provided, diameter is smaller than 4mm, and highly less than 8mm, volume energy is close
Degree can reach as 450Wh/L, and mass energy density can reach 30Wh/kg, higher than current duricrust Miniature lithium cell both domestic and external
Performance level；Using this sealing means, energy density is not only improved, high and low temperature environment can also be kept to change, sealing property is not
Change；This kind of sealing means simple operationss, without the need for expensive device, are easy to operation, low cost to be easy to expansion equipment to be suitable for and produce
Product scope, to large-sized battery sealing operation can be also carried out.
By arranging sealing gasket 3 in this programme, and shaping is carried out to battery core so that hard shell 1 has one to sealing gasket 3
Fixed active force, forms firm structure, reaches the effect of preliminary sealing.
Hard shell 1 described in the present embodiment adopts aluminum hull, the sealing gasket 3 to adopt rubber blanket.
Embodiment two:
As shown in Fig. 2 in the present embodiment, a kind of microminiature duricrust lithium battery of the present invention, including at least having
One open-topped hard shell 1 and the sealing gasket 3 for sealing the hard shell 1 in the top open part, in
The top open part to the inside of the hard shell 1 is extended with for realizing the hard shell 1 with the sealing gasket 3
The fixed edge 4 of seamless connection, the fixed edge 4 is structure as a whole by the way that the hard shell 1 is inside with the hard shell 1
Portion's turnover processing is formed.Pole group 2 is provided with the hard shell 1, the pole group 2 includes negative electrode, anode and is arranged on institute
The barrier film between negative electrode and the anode is stated, the negative electrode is connected with the first conductor 5, and the anode is connected with the second conductor 6, institute
State the first conductor 5 and both pass through the outside that the sealing gasket 3 extends to the hard shell 1 with second conductor 6.
In the present embodiment, first conductor 5 and second conductor 6 are through the mode of the sealing gasket 3：Institute
State the first through hole that is provided with passing through first conductor 5 on sealing gasket 3 and pass through can second conductor 6
The second through hole, the first through hole separately arranges with second through hole.
As shown in Fig. 2 as further preferred technical scheme, in the sealing gasket 3 and the pole group 2 in the present embodiment
Between be provided with teleblem 7, it is corresponding with the first through hole on the teleblem 7 to be provided with the first installing hole, it is logical with described second
Hole site is corresponding to be provided with the second installing hole, and first conductor 5 sequentially passes through first installing hole and extends to institute
The outside of hard shell 1 is stated, second conductor 6 sequentially passes through second installing hole and second through hole extends to institute
State the outside of hard shell 1.
By arranging teleblem 7 between the sealing gasket 3 and the pole group 2 in this programme, it is to avoid sealing gasket 3 and pole group 2
Directly contact, so as to prevent electrolyte from being reacted with sealing gasket 3.
Embodiment three:
As shown in figure 3, in the present embodiment, a kind of microminiature duricrust lithium battery of the present invention, including at least having
One open-topped hard shell 1 and the sealing gasket 3 for sealing the hard shell 1 in the top open part, in
The top open part to the inside of the hard shell 1 is extended with for realizing the hard shell 1 with the sealing gasket 3
The fixed edge 4 of seamless connection, the fixed edge 4 is structure as a whole by the way that the hard shell 1 is inside with the hard shell 1
Portion's turnover processing is formed.Pole group 2 is provided with the hard shell 1, the pole group 2 includes negative electrode, anode and is arranged on institute
The barrier film between negative electrode and the anode is stated, the negative electrode is connected with the first conductor 5, and the anode is connected with the second conductor 6, institute
State the first conductor 5 and both pass through the outside that the sealing gasket 3 extends to the hard shell 1 with second conductor 6.
Further, also include in the present embodiment being arranged on the counterdie 8 inside the hard shell 1, the counterdie 8
Between the housing and the pole group 2, for preventing the negative electrode and the anode from contacting generation with the hard shell 1
Short circuit.
Can prevent negative electrode, anode by setting counterdie 8 to contact with hard shell 1, prevent short circuit.
Example IV:
As shown in figure 4, in the present embodiment, a kind of microminiature duricrust lithium battery of the present invention, including at least having
One open-topped hard shell 1 and the sealing gasket 3 for sealing the hard shell 1 in the top open part, in
The top open part to the inside of the hard shell 1 is extended with for realizing the hard shell 1 with the sealing gasket 3
The fixed edge 4 of seamless connection, the fixed edge 4 is structure as a whole by the way that the hard shell 1 is inside with the hard shell 1
Portion's turnover processing is formed.Pole group 2 is provided with the hard shell 1, the pole group 2 includes negative electrode, anode and is arranged on institute
The barrier film between negative electrode and the anode is stated, the negative electrode is connected with the first conductor 5, and the anode is connected with the second conductor 6, institute
State the first conductor 5 and both pass through the outside that the sealing gasket 3 extends to the hard shell 1 with second conductor 6.
Further, in the present embodiment the surface of the hard shell 1 and be located at the fixed edge 4 away from the sealing
The side of pad 3 is provided with fluid sealant 9.
Fluid sealant 9 described in the present embodiment adopts resin glue, by adding resin glue and resin glue being solidified, reaches
Further fully seal.
Embodiment five：
As shown in figure 5, in the present embodiment, a kind of microminiature duricrust lithium battery of the present invention, including at least having
One open-topped hard shell 1 and the sealing gasket 3 for sealing the hard shell 1 in the top open part, in
The top open part to the inside of the hard shell 1 is extended with for realizing the hard shell 1 with the sealing gasket 3
The fixed edge 4 of seamless connection, the fixed edge 4 is structure as a whole by the way that the hard shell 1 is inside with the hard shell 1
Portion's turnover processing is formed.Pole group 2 is provided with the hard shell 1, the pole group 2 includes negative electrode, anode and is arranged on institute
The barrier film between negative electrode and the anode is stated, the negative electrode is connected with the first conductor 5, and the anode is connected with the second conductor 6, institute
State the first conductor 5 and both pass through the outside that the sealing gasket 3 extends to the hard shell 1 with second conductor 6.
Specifically, the first through hole that is provided with passing through first conductor 5 on the sealing gasket 3 and can make
The second through hole that second conductor 6 passes through, the first through hole is separately arranged with second through hole.The sealing gasket 3
Teleblem 7 is provided between the pole group 2, it is corresponding with the first through hole on the teleblem 7 to be provided with the first installing hole, with
Second lead to the hole site is corresponding to be provided with the second installing hole, first conductor 5 sequentially pass through first installing hole with
And extending to the outside of the hard shell 1, second conductor 6 sequentially passes through second installing hole and described second leads to
Hole extends to the outside of the hard shell 1.Also include being arranged on the counterdie 8 inside the hard shell 1, the counterdie 8
Between the housing and the pole group 2, for preventing the negative electrode and the anode from contacting generation with the hard shell 1
Short circuit.The surface of the hard shell 1 is simultaneously provided with fluid sealant 9 positioned at the fixed edge 4 away from the side of the sealing gasket 3.
Embodiment six：
The present embodiment provides a kind of processing method of microminiature duricrust lithium battery, as shown in fig. 6, it illustrates institute of the present invention
State the state of each step of method, there is provided at least with open-topped hard shell 1, in the hard shell 1 pole is loaded
The open top is blocked using sealing gasket 3 after group 2, and by the hard shell edge in all portions of the top open part internally
Turnover realizes the hard shell 1 with the seamless connection of the sealing gasket 3.
Specifically, in the method described in the present embodiment, by the hard shell edge in all portions of the top open part to
Inside turnover includes preliminary turnover and secondary turnover, the hard shell edge turned down Jing after turning down twice with do not turned down
1 week portion of hard shell is perpendicular, and the preliminary turnover is that the hard shell edge is inwardly turned on one's side to roll over 30 ° -60 °.
Internally turn down the hard shell edge in open-topped all portions in the present embodiment is carried out using sealed piece.
Fluid sealant 9 is set on its surface after the completion of the hard shell edge is turned down.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means to combine the embodiment
Or specific features, structure, material or the feature that example is described is contained at least one embodiment of the present utility model or example
In.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, retouch
Specific features, structure, material or the feature stated can be in any one or more embodiments or example with suitable side
Formula is combined.
Know-why of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and can not by any way be construed to the restriction to this utility model protection domain.Based on explanation herein,
Those skilled in the art associates other specific embodiments of the present utility model by need not paying performing creative labour,
These modes are fallen within protection domain of the present utility model.
Claims (10)
1. a kind of microminiature duricrust lithium battery, it is characterised in that including at least have an open-topped hard shell and
For sealing the sealing gasket of the hard shell in the top open part, in the top open part to the hard shell
Inside is extended with the fixed edge for realizing the hard shell and the seamless connection of the sealing gasket, the fixed edge with it is described
Hard shell is structure as a whole and formed by the way that the hard shell is internally turned down into processing.
2. microminiature duricrust lithium battery according to claim 1, it is characterised in that be provided with pole in the hard shell
Group, the pole group includes negative electrode, anode and the barrier film being arranged between the negative electrode and the anode, and the negative electrode is connected with
First conductor, the anode is connected with the second conductor, and first conductor both passes through the sealing gasket and prolongs with second conductor
Extend the outside of the hard shell.
3. microminiature duricrust lithium battery according to claim 2, it is characterised in that be provided with making on the sealing gasket
First through hole that first conductor passes through and the second through hole that second conductor passes through can be made, the first through hole with
Second through hole is separately arranged.
4. microminiature duricrust lithium battery according to claim 3, it is characterised in that between the sealing gasket and the pole group
Teleblem is provided with, it is corresponding with the first through hole on the teleblem to be provided with the first installing hole, with second lead to the hole site
Corresponding to be provided with the second installing hole, first conductor sequentially passes through first installing hole and extends to outside the hard
The outside of shell, second conductor sequentially passes through second installing hole and second through hole extends to the hard shell
Outside.
5. microminiature duricrust lithium battery according to claim 2, it is characterised in that also including being arranged on the hard shell
Internal counterdie, the counterdie is located between the housing and the pole group, for prevent the negative electrode and the anode with
The hard shell contact is short-circuited.
6. microminiature duricrust lithium battery according to claim 1, it is characterised in that the surface of the hard shell is simultaneously located at
The fixed edge is provided with fluid sealant away from the side of the sealing gasket.
7. a kind of processing method of microminiature duricrust lithium battery, it is characterised in that provide and at least have outside open-topped hard
Shell, to load in the hard shell and block the open top using sealing gasket after the group of pole, and by the top open part
The hard shell edge in all portions internally turns down the seamless connection for realizing the hard shell and the sealing gasket.
8. the processing method of microminiature duricrust lithium battery according to claim 7, it is characterised in that by the open top
The hard shell edge in all portions at place is internally turned down including preliminary turnover and secondary turnover, is turned down Jing after turning down twice
Hard shell edge is perpendicular with the hard shell week portion not turned down, it is described it is preliminary turnover be by the hard shell edge to
30 ° -60 ° of inner side turnover.
9. the processing method of microminiature duricrust lithium battery according to claim 7, it is characterised in that by the open top
The hard shell edge in all portions internally turn down and carried out using sealed piece.
10. the processing method of microminiature duricrust lithium battery according to claim 7, it is characterised in that by outside the hard
Fluid sealant is set on its surface after the completion of the turnover of shell edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248040.3A CN106601935A (en) | 2016-12-29 | 2016-12-29 | Micro-miniature hard shell lithium battery and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248040.3A CN106601935A (en) | 2016-12-29 | 2016-12-29 | Micro-miniature hard shell lithium battery and processing method thereof |
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| Publication Number | Publication Date |
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| CN106601935A true CN106601935A (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611248040.3A Pending CN106601935A (en) | 2016-12-29 | 2016-12-29 | Micro-miniature hard shell lithium battery and processing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711639A (en) * | 2018-05-28 | 2018-10-26 | 广州凯风电容器有限公司 | A kind of mouth-sealing method of lithium ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JP2004362870A (en) * | 2003-06-03 | 2004-12-24 | Matsushita Electric Ind Co Ltd | Cylindrical battery |
| CN101305481A (en) * | 2005-09-02 | 2008-11-12 | A123系统公司 | Battery design and method of construction |
| CN201812860U (en) * | 2010-10-21 | 2011-04-27 | 惠州亿纬锂能股份有限公司 | Soft-packing cylindrical battery |
| CN203466227U (en) * | 2013-07-05 | 2014-03-05 | 陈宏浩 | Miniature cylindrical high power lithium battery |
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