[go: up one dir, main page]

WO1994006163A1 - Cadre d'electrode comprenant des elements structuraux et un materiau en bande supplementaire - Google Patents

Cadre d'electrode comprenant des elements structuraux et un materiau en bande supplementaire Download PDF

Info

Publication number
WO1994006163A1
WO1994006163A1 PCT/NZ1993/000080 NZ9300080W WO9406163A1 WO 1994006163 A1 WO1994006163 A1 WO 1994006163A1 NZ 9300080 W NZ9300080 W NZ 9300080W WO 9406163 A1 WO9406163 A1 WO 9406163A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
electrode plate
active material
plate
manufacturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/NZ1993/000080
Other languages
English (en)
Inventor
Pita Witehira
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU49867/93A priority Critical patent/AU4986793A/en
Publication of WO1994006163A1 publication Critical patent/WO1994006163A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/82—Multi-step processes for manufacturing carriers for lead-acid accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/14—Electrodes for lead-acid accumulators
    • H01M4/16—Processes of manufacture
    • H01M4/20—Processes of manufacture of pasted electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/70—Carriers or collectors characterised by shape or form
    • H01M4/72—Grids
    • H01M4/73—Grids for lead-acid accumulators, e.g. frame plates
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • 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

Definitions

  • This invention relates to improvements to electrode plates and associated methods of manufacture.
  • Certain types of batteries contain a number of electrode plates consisting of a frame to which is supplied active material.
  • the frame is usually configured into a grid and its purpose is to conduct electricity and to hold the active material.
  • the active material for negative electrodes is a mixture of granules of lead, various oxides of lead and various fillers and/or expanders, and sulphuric acid which combine to form a (settable) paste with a consistency similar to cement plaster when wet.
  • the positive electrode plates have an active material using similar constituents but in different proportions. After the plates are made arid set or "cured", they are assembled in an electrochemical cell, where both the positive and negative electrodes are separated, usually by an electrolyte permeable material known as a separator.
  • the cell is then subject to an electrolytic forming process during which electric current is passed through the cell in the direction corresponding to recharging of the cell, and this process largely converts the active material in the positive plate to lead dioxide and that in the negative plate to metallic lead.
  • electrolytic forming process during which electric current is passed through the cell in the direction corresponding to recharging of the cell, and this process largely converts the active material in the positive plate to lead dioxide and that in the negative plate to metallic lead.
  • the voltage distribution over the grid during discharge causes the active matter near the top to discharge first and most, resulting in inefficient use of the active mass, and in excessive cycling in the top areas of the plate. 4.
  • the poor conductivity of the positive active material means that in a conventional grid structure during discharge there is a voltage gradient across the area of active mass in each grid pocket. This causes excessive resistance in the discharge path, uneven and inefficient use of the active mass, distortion in the active mass pocket with increased shedding, and poorer contact of the active mass with the grid.
  • the paste is rolled or squeezed onto the electrode frames or grids which are then left to dry or cure for a period of time.
  • the paste dries during curing, sets hard and sticks to the grid wires. This process is sometimes referred to as keying.
  • US Patent No. 388960 related to the manufacture of secondary battery plates.
  • the essence of the invention was stamping out by cutting and pressing from a sheet of metal two similar plates with each plate having bevelled apertures. The plates were attached together so that a single plate with an oppositely bevelled aperture was formed.
  • a plate of this construction also utilised weighty horizontal wires which contributed little to the conduction of current to the tab attached to the electrode plate.
  • US Patent No. 1369353 related to a method of making electrode plates formed by punching a number of apertures into a metal alloy sheet. To provide the necessary structural strength, it was necessary to have a comparatively thick grid plate. For space reasons, this lead to a fewer number of electrode plates which can be fitted into a standard battery volume, and therefore a lower current carrying capacity for the total battery.
  • US Patent No. 2724733 disclosed a number of different types of electrode plates. The manufacture of each of the plates involved a multiple step process which is inherently expensive.
  • US Patent No. 3099899 relates to a battery grid plate comprised of expanded metal.
  • the manufacture of these grid plates was a multiple step process comprising: a) stamping or cutting small slits in a suitable metal sheet or foil, and b) stretching the metal sheets to form small meshes, and c) stamping or cutting the resultant expanded metal sheets to provide slits which are larger than the slits for the preliminary stretching step, and d) stretching these metal sheets to obtain the final grid plate.
  • US Patent No.4547939 related to a plate for use in a multi-cell secondary battery.
  • This plate essentially comprised of a perimeter frame of thermoplastic material having a metal mesh spanning the area of the frame to provide support for the active battery paste.
  • One of the disadvantages of this plate is the use of two different materials leading to an expensive multi-step manufacturing process.
  • US Patent No. 4805277 related to a process for producing a grid for use in lead acid batteries.
  • the grid is formed by the following method: a) superposing a sheet or a foil of a lead alloy on a sheet bar of a lead calcium alloy wherein the sheet or foil has a composition different from that of the sheet bar and the thickness different from that of the sheet bar, and b) subjecting the superposed materials to a cold rolling to integrate the two materials and to produce an elementary sheet having a thickness smaller than that of the sheet bar, and c) subjecting the elementary sheet thus obtained to an expanding process or a punching process.
  • US Patent No. 5093971 related to a method and apparatus forming an expanded mesh battery grid.
  • the method of producing this grid plate expands mesh sheet from a pre- slit deformable strip having unslit portions along at least the lateral edges thereof.
  • the steps of this method are comprised of:
  • a frame for an electrode plate comprising a stmctural member or members and web material which provides additional surface area to the frame than that provided by the structural members.
  • the stmctural members will be the conductive wires typically used in the grid or frame of electrode plates.
  • the web material is a thin extension or "flashing" of the wire.
  • the web material may be a conductive sheet into (and onto) which the active material can be keyed.
  • a stmctural member may in this embodiment be non- conductive filaments or otherwise which serve only to provide structural strength and perhaps support the web material.
  • the web material may be a non-conductive substrate for the active material to attach to and the stmctural members may be electrically conductive.
  • the preferred embodiment consists of replacing the conventional lead grid system by a highly “flashed" grid stmcture, or a continuous lead sheet stmcture.
  • the frame is made in a single step process. This is less time consuming and less expensive than the previous more complicated methods of manufacturing frames for electrode plates.
  • the present invention also fits in with conventional grid manufacture.
  • a number of conventional frames are made by casting the lead material. With the present invention the frame may also be cast, but in such a manner that flashing or the creation of the web material is encouraged.
  • the use of horizontal (at right angles to the direction of main current flow) leaden bars or wires may also be minimised.
  • Appropriate ribs may be used in the vertical direction, and stiffening may be achieved by the use of corrugations or indentations in the sheet. Adhesion of the pastes to the sheet may be assisted by many small perforations and other techniques.
  • This format enables the same amount of lead to be used to give a grid stmcture with a significantly reduced resistance in the direction of the current flow (e.g. by a factor of 5), while making the plate more rigid. It also results in reducing the average current path in the active pastes by a factor of at least 15, reducing the resistance and voltage drop incurred in the positive paste pockets by a factor of around 15. This provides a vastly improved contact area between the active pastes and the current collecting grid, and it allows much more even use of active mass to be achieved in the discharge of the battery, particularly at high currents.
  • the standard lead grid comprising pockets filled with active mass surrounded by cast lead "wires" which comprise the grid can be replaced by a reinforced or appropriately shaped sheet of lead upon or through which is deposited active mass.
  • this may alternatively take the form of a thin layer of flashing from the grid "wires" extending throughout the pocket areas, with suitable perforations to key the active mass to the plate.
  • a basic grid structure may nevertheless be left in place around the sheeting, to give the sheet plate strength and to help cany the current to the tab.
  • the average current path in the highly resistive active material is reduced from around 5-8mm to less than 0.3mm. This gives a reduction in average path resistance to the lead stmcture for current generated in the pocket of active mass by a factor typically 15 or more.
  • the resistance of the grid "wires", especially near the top of the plate, cause a significant voltage gradient to develop over and across the upper part the plate. This inhibits cunent supply from other regions of the plate, resulting in inefficient use of active mass and over-discharge of the active mass in the top region of the plate, enhancing premature aging (loss of capacity, increase in paste resistance and poor paste-to-grid connection) of the plate in the region and leading to earlier than necessary failure of the plate.
  • CCA cold cranking amps
  • the conventional grid form is not adequate to carry the maximum expected current in the vicinity of the tab. If the tab is centralised, it can collect an important portion of the current that would otherwise flow in the grid, reducing the heating and voltage gradient significantly.
  • the stiffness of the plate can also be improved by structured sheet flashing.
  • the keying of the paste to the plate may be better with a perforated flashing as in some embodiments rather than plane sheet or sheet flashing.
  • the stiffness of the plates can also be improved by structured sheet flashing.
  • the sheet or flashing could be perforated and ridged or corrugated or suitably distorted to improve the keying of the paste to the plate, and especially to increase the rigidity and stiffness. Ridging or dishing of the sheet flashing would greatly increase the stiffness and rigidity of the plate, and this could allow a reduction in the amount of lead needed in the lower region of the plate, where its main purpose is to provide strength to allow the plate to be self supporting, and to allow the plate to be pasted without undue care and support being given to it.
  • Efficient use of lead in a rib-reinforced sheet-style grid can improve the grid conductivity by a factor of 5, compared to current conventional grids.
  • the improvement in plate performance from this method is of course substantially greater due to the non ⁇ linear effect of the overpotential developed by the current flow in the grid.
  • the size of conductors can be matched to the current flow. For example, in a conventional battery plate, the horizontal wires carry little current, and represent inefficient use of lead, as they are there for ease of casting (as vertical runners in the standard book mould) and strength only.
  • the horizontal wires can be used to feed current sideways to the tab (central) and borders.
  • the thickness and spacing of the grid "wires" in a sheet flashed plate with dishing, cormgating or ridging of the sheet providing the necessary strength can then be matched to the lateral current requirements, without other constraints.
  • the present invention can provide a frame for an electrode plate which does not require discrete horizontal grid wires or bars and which derives its strength from using webs or sheets which are largely or wholly continuous in the vertical direction, this being the intended overall direction of the cunent flow.
  • the stmctural function of the horizontal grid wires or bars is largely or wholly replaced by a thin web or sheet having a vertical continuity to enable it to carry current effectively in the vertical direction.
  • the frame in which the pockets or mechanism used for containing the active material has such dimensions and shapes that the average cunent path in the active material to the nearest conducting frame component is not more than 3 mm.
  • the mean effective resistance from the positive paste to the grid can be reduced by a factor of about 10. Therefore efforts to artificially increase the conductivity of the positive paste with additives are no longer important. This allows much more freedom to concentrate on improving the porosity of the paste.
  • a form of active paste in which there is incorporated a high degree of porosity so that the density of the active material when incorporated in the frame is less than 4 gm/per cm 3 is prefened. This allows the acid electrolyte to intermingle in good proportions with the active mass to alleviate the problem acid starvation during a high cunent discharge.
  • the present invention can be manufactured by a variety of methods. At present the majority of battery grids are cast. This method is easily modified to allow sheet flashing to fill the median plane of the grid, with or without keying holes for the active matter. Flaws in the casting of both the wires and the flashing are of little matter because of the added strength and conductivity given to the grid by this method. It is also possible to modify the moulds to include small but significant amounts of dishing or ridging in the flashing to stiffen the grid. However, such modifications could also be done cheaply and easily (as well as perforating the flashing) in a press in a subsequent operation.
  • the frames are cast in a mould so that the vertical runners for the casting process within the frame region become the vertical cunent carrying bars for the frame. This makes efficient use of the lead in the larger size runner channels needed in the vertical pour of the casting.
  • the techniques for plate improvement discussed above allow for the manufacture of battery grids by pressing or stamping techniques.
  • the next operation is then to deform the rolled sheet to provide ridging for lateral and longitudinal stiffness.
  • the thin sheet between the ribs would provide adequate lateral conductivity, and the result is a better and cheaper and stiffer battery plate with all of the above advantages except that the conductivity in the vertical direction will not change with height. This is of course no worse than conventional battery grids.
  • An improved manufacturing step is to use an extruding roller that concentrates the lead towards the top of the plate by inco ⁇ orating a rolling pattern that provides tapered rib borders, a central tapered rib developing into the tab, further tapered ribs, and also, or alternatively, allowing the thickness of the thin sheeting between the ribs to increase towards the top of the grid.
  • a roller extrusion system could also put in the dishings or corrugations to provide the stiffened plate.
  • stamping processes could be used to completely form a grid in one operation, incorporating all of the improvements considered above. Obviously the initial set-up cost would be higher, and it is a departure from cunent methods. However, it eliminates the considerable difficulties with casting methods in present use, and should be adaptable without modification to a wide range of alloys for the grids. According to one aspect of the present invention there is provided a method for manufacturing an electrode plate including applying active material to electrode plates, by spraying the active material onto said electrode plates.
  • the active material will be comprised of lead and lead oxide as described previously, the present invention will also apply to active material having different compositions.
  • the active material may be sprayed onto the electrode plates by a variety of methods.
  • a spraying apparatus similar to that used for spraying cement may be used.
  • a hopper positioned above a spray nozzle.
  • Compressed air may be injected into the nozzle apparatus propelling or drawing the active material through the spray nozzle.
  • Other spraying apparatus may of course be used.
  • the electrode plate may be sprayed with active material simultaneously from spray nozzles at opposing sides of the electrode plate. This method of spraying has a number of advantages.
  • the force of the opposing sprays with respect to each other will limit undue spattering of the active material beyond the electrode plates.
  • the interaction of the two sprays at the electrode plate assists to key the active material strongly to the electrode plate.
  • the applicant has found that the above process enables thinner grid wires to be used which reduces the cost and weight of a battery incorporating electrode plates made as described.
  • the electrode plates will be conveyed past the spray nozzles.
  • the electrode plates may be gripped in a clamp situated either above or below the spray nozzles leaving the majority of the surface area of the electrode plate exposed to the spray from the nozzles.
  • the electrode tab which is not required to be coated with active material, may be the handle by which the electrode plate is moved through the coating process.
  • the whole of the process is contained within an enclosure such as a tunnel due to the toxic nature of the active material.
  • an enclosure such as a tunnel due to the toxic nature of the active material.
  • drainage and other means for removing excess amounts of active material that do not adhere to the electrode plates may be provided.
  • the present invention lends itself to be adapted to apply various materials to the electrode plates rather than just the active material.
  • a conditioning treatment such as cleansing fluid to the electrode plates.
  • Conditioning chemicals which may also form part of a conditioning treatment can be applied to the plates at the start of the process making them more receptive to the later application of active material.
  • a number of coats of active material may be apphed. For example, there may be multiple pairs of spray nozzles set up so that the electrode plate can be conveyed by the conveying system from one pair of spray nozzles to the other for subsequent coats of active material.
  • Multiple spray coats may ensure that the active material adheres more strongly to the electrode plate.
  • the coats applied to the electrode plates may have differing densities, consistencies and compositions from each other.
  • a further coat or coats to the electrode plates For example, a porous material may be sprayed onto of the active material. This material can act as a separator holding the electrode plates apart. Being porous, the material can still allow electrolyte to pass through the separator and reach the active material on the electrode plate.
  • the separator material may be a foam.
  • the present invention provides a means by which a greater amount of active material can be applied to an electrode plate than previously and be adhered more strongly. This leads to greater battery efficiency. Further, the present invention provides an automated way by which electrode plates can be made which leads to lower manufacturing costs. In addition, thinner grids can be used. And, in some embodiments, there is no need to supply a discrete separator material as an application of a foam or some other material makes the separator integral with the electrode plate.
  • the fibres may be made of polymers, glass, metal, be conducting, hollow or otherwise.
  • the fibres can also be crimped or distorted to increase the reinforcing effect of their present and to increase the porosity of the paste by making voids which become open during the curing process, and/or to increase the conductivity of the paste.
  • Figure 1 illustrates an electrode plate in accordance with one embodiment of the present invention.
  • Figure 2 illustrates an enlarged cross-section of the plate illustrated in Figure 1 .
  • Figure 3 illustrates part of a die which could be used for casting the electrode plate
  • Figure 4 is a diagrammatic view of an electrode plate being sprayed with active material
  • Figure 5 is a diagrammatic plan view of one possible process in accordance with the present invention.
  • FIG. 19 there is illustrated an electrode plate 19 which has been manufactured in accordance with the present invention.
  • the paste and active material is indicated by numeral 19A.
  • Wires 19B form a rectangular grid across the electrode plate 19.
  • a moulding flash containing perforations is indicated by an anow 19C.
  • a closer view of these perforations is indicated by anow 19D.
  • Figure 2 illustrates in an enlarged cross-section of at least two wires 19B of the grid 19.
  • the active material 19A has been applied to the grid 19 and is shown to cover both sides of the mould flash 19C.
  • the active material also keys in between the perforations 19D of the mould flash.
  • Figure 3 illustrates part of a die which can be used to cast the electrode grids.
  • two parts of a section of the die closed together is illustrated.
  • a wire cavity is indicated by 19E.
  • the large perforation at the centre of the grids is created by the die being closed tightly at the points approximately centre of the wire cavity in the mould flash. Smaller perforations are indicated by anow 19G.
  • the mould flash contains a major perforation created by the die as well as a mould lining material apphed to the moulding.
  • the active material can be applied to the grid by conventional methods as described earlier.
  • an electrode plate 1 which has been sprayed with active material 2.
  • the electrode plate 1 is being held into a substantially vertical position by a clamp 3 which is situated on a conveying belt 4.
  • the belt 4 has a wide mesh configuration to allow for drainage of any excess active material 2 through the apertures 5 in the belt 4.
  • Two spraying devices 6 and 7 apply the active material 2 to the electrode plate 1.
  • the spraying devices 6 and 7 each comprise of a hopper 8 (not fully shown), nozzle housing 9, a nozzle 10 and an injection port 11.
  • the configuration and operation of the spraying devices 6 and 7 are similar to that used for spraying plaster.
  • Compressed air enters through the injection port 11 and draws active material from the hopper 8 into the nozzle housing 9 and out through the nozzle 10.
  • the nozzle 10 has been adjusted to ensure that the spray pattern covers the whole of the surface area of the electrode plate 1. By having competing sprays of active material 2, undue spatter of active material is reduced. Further, if the electrode plate has increased flashings as prefened, there are fewer and smaller apertures through which the active material can pass.
  • Figure 5 illustrates one possible process in accordance with the present invention. For the purposes of illustration, the conveyor belt 4 and the clamps 5 which support the electrode plates 1 are not shown in Figure 5.
  • a conveying system passes electrode plates 1 through a tunnel 12 in the direction of the anows.
  • the conditioning chemical 14 may include cleansers or possibly abrasives or some other material which could cause a slight pitting of the electrode plates to allow the active material to more readily key into same.
  • the second pair of spraying devices 15 spray active material 2a having a high density onto the electrode plates.
  • Spraying devices 16 spray active material 2b having a lower density than active material 2a.
  • spraying devices 17 spray a foam 18 onto the electrode plates 1.
  • the foam 18 hardens to become a separator for the electrode plates yet allowing electrolyte to reach the active material 2 on the electrode plates 1.
  • the electrode plates 1 After the application of the foam, the electrode plates 1 proceed past hot air dryers 20.
  • the spacing of the spraying devices 17 with respect to each other and the speed of the conveyor are matched to ensure that each application of material to the electrode plates has reached a condition that makes it receptive to the next part of the process.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

La plaque électrode se présente sous forme d'un cadre comprenant des éléments structuraux (19b) et un matériau en bande (19c). Le matériau en bande fournit une surface supplémentaire au cadre et permet ainsi au matériau actif (19a) de se fixer plus facilement à la plaque électrode. Selon des modes de réalisation préférés, la bande (19c) est obtenue par coulure des éléments structuraux (19b) au cours du moulage. La bande (19c) peut comprendre des perforations (19d) afin d'améliorer la fixation. Selon des modes de réalisation préférés, la plaque électrode peut être simultanément pulvérisée avec le matériau actif (19a) à partir d'ajutages de pulvérisation placés sur les côtés opposés de la plaque.
PCT/NZ1993/000080 1992-09-10 1993-09-06 Cadre d'electrode comprenant des elements structuraux et un materiau en bande supplementaire Ceased WO1994006163A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49867/93A AU4986793A (en) 1992-09-10 1993-09-06 Electrode frame having structural members and additional web material

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NZ24427992 1992-09-10
NZ244279 1992-09-10
NZ245787 1993-01-28
NZ24578793 1993-01-28

Publications (1)

Publication Number Publication Date
WO1994006163A1 true WO1994006163A1 (fr) 1994-03-17

Family

ID=26651110

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ1993/000080 Ceased WO1994006163A1 (fr) 1992-09-10 1993-09-06 Cadre d'electrode comprenant des elements structuraux et un materiau en bande supplementaire

Country Status (4)

Country Link
CN (1) CN1086348A (fr)
AU (1) AU4986793A (fr)
MX (1) MX9305521A (fr)
WO (1) WO1994006163A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082150A (en) * 1994-11-09 2000-07-04 R.R. Street & Co. Inc. System for rejuvenating pressurized fluid solvents used in cleaning substrates
WO2003038933A3 (fr) * 2001-10-27 2004-08-26 Gyoergy Andras Sarosi Grille pour batterie au plomb, procede de fabrication et plaque de batterie
CN103464405A (zh) * 2013-08-29 2013-12-25 江苏三环实业股份有限公司 一种铅酸蓄电池板栅清洗设备
CN105958006A (zh) * 2016-07-20 2016-09-21 孙健春 一种具有散热功能的锂电池电极、制法及锂电池

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1839124A (en) * 1924-06-26 1925-05-05 Improvements in or relating to accumulator grids or plates
JPS5475541A (en) * 1977-11-30 1979-06-16 Shin Kobe Electric Machinery Paste type pole plate grid
AU7565181A (en) * 1980-09-30 1982-04-08 Sims Products Pty. Ltd. Improvements in the manufacture of storage battery
JPS57126077A (en) * 1981-01-29 1982-08-05 Shin Kobe Electric Mach Co Ltd Manufacture of grid for lead acid battery
US4582098A (en) * 1982-11-01 1986-04-15 Matsushita Electric Industrial Co., Ltd. Method of fabricating electrodes for battery
DD255620A1 (de) * 1986-10-30 1988-04-06 Mansfeld Kombinat W Pieck Veb Gitterplatte fuer bleiakkumulatoren

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1839124A (en) * 1924-06-26 1925-05-05 Improvements in or relating to accumulator grids or plates
AU6346765A (en) * 1965-09-01 1967-03-02 A method of manufacturing grids forthe plates of electric storage batteries
JPS5475541A (en) * 1977-11-30 1979-06-16 Shin Kobe Electric Machinery Paste type pole plate grid
AU7565181A (en) * 1980-09-30 1982-04-08 Sims Products Pty. Ltd. Improvements in the manufacture of storage battery
JPS57126077A (en) * 1981-01-29 1982-08-05 Shin Kobe Electric Mach Co Ltd Manufacture of grid for lead acid battery
US4582098A (en) * 1982-11-01 1986-04-15 Matsushita Electric Industrial Co., Ltd. Method of fabricating electrodes for battery
DD255620A1 (de) * 1986-10-30 1988-04-06 Mansfeld Kombinat W Pieck Veb Gitterplatte fuer bleiakkumulatoren

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DERWENT ABSTRACT, Accession No. 79-55444B, Class A85, L03, R47; & JP,A,54 075 541, (SHIN KOBE ELFC MACH), 16 June 1979. *
DERWENT ABSTRACT, Accession No. 88-242946/35, Class X16; & DD,A,255 620, (VEB MANSFELD-KOMB PIECK), 6 April 1988. *
PATENT ABSTRACTS OF JAPAN, E-140, page 95; & JP,A,57 126 077, (SHINKOUBE DENKI K.K.), 5 August 1982. *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082150A (en) * 1994-11-09 2000-07-04 R.R. Street & Co. Inc. System for rejuvenating pressurized fluid solvents used in cleaning substrates
WO2003038933A3 (fr) * 2001-10-27 2004-08-26 Gyoergy Andras Sarosi Grille pour batterie au plomb, procede de fabrication et plaque de batterie
CN103464405A (zh) * 2013-08-29 2013-12-25 江苏三环实业股份有限公司 一种铅酸蓄电池板栅清洗设备
CN103464405B (zh) * 2013-08-29 2015-09-09 江苏三环实业股份有限公司 一种铅酸蓄电池板栅清洗设备
CN105958006A (zh) * 2016-07-20 2016-09-21 孙健春 一种具有散热功能的锂电池电极、制法及锂电池

Also Published As

Publication number Publication date
AU4986793A (en) 1994-03-29
CN1086348A (zh) 1994-05-04
MX9305521A (es) 1994-06-30

Similar Documents

Publication Publication Date Title
AU2010210323B2 (en) Multiply-conductive matrix for battery current collectors
CA2679909C (fr) Grille negative pour batterie
US6979517B2 (en) Electrode plate for cell and method for manufacturing the same
CN100364155C (zh) 制造涂有合金的电池栅板的方法
US5965298A (en) Electrode plate for battery and process for producing the same
US5139902A (en) Electrode for electrochemical cells
KR20130012018A (ko) 배터리 그리드 및 배터리 그리드 제조 방법
EP0630063A1 (fr) Electrode de batterie bipolaire et procédé de fabrication
US4237205A (en) Pocket grid for alkaline battery plates
DE69022383T2 (de) Wiederaufladbare nickelelektrode mit elektrochemischer zelle und verfahren zu deren herstellung.
CN102593430A (zh) 电池用极板及其制造方法、具有该极板的极板组和铅蓄电池
US5993494A (en) Method of manufacturing modular components for a bipolar battery and the resulting bipolar battery
WO1994006163A1 (fr) Cadre d'electrode comprenant des elements structuraux et un materiau en bande supplementaire
JPH0524628B2 (fr)
JPS59134563A (ja) 電極用集電体の製造法
GB2420439A (en) Lead-acid battery grid plates, manufacturing method and apparatus therefor
US4296187A (en) Integrated carbon/insulator structure and method for fabricating same
US4338978A (en) Lead chloride battery plate
JP7755992B2 (ja) 二次電池及び二次電池の製造方法
KR100250381B1 (ko) 축전지용 극판에 활물질을 지지하는 방법 및 그 축전지
US4262069A (en) Lead chloride battery plate
WO2005083817A1 (fr) Grilles pour batterie d'accumulateurs
EP0414727B1 (fr) Procede et materiau de fabrication d'une electrode, et pile comportant une telle electrode
JPS6336941Y2 (fr)
JPH03105855A (ja) 鉛蓄電池用極板の製造方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR BY CA CH CZ DE DK ES FI GB HU JP KP KR KZ LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA