CN212967764U - Bipolar plate of lead-acid storage battery and storage battery thereof - Google Patents
Bipolar plate of lead-acid storage battery and storage battery thereof Download PDFInfo
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- CN212967764U CN212967764U CN202021538562.9U CN202021538562U CN212967764U CN 212967764 U CN212967764 U CN 212967764U CN 202021538562 U CN202021538562 U CN 202021538562U CN 212967764 U CN212967764 U CN 212967764U
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- 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
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- 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
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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- 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
- H01M10/06—Lead-acid accumulators
- H01M10/18—Lead-acid accumulators with bipolar electrodes
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- 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
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- 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)
- Cell Electrode Carriers And Collectors (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to a lead acid battery's polar plate, concretely relates to lead acid battery's bipolar plate and battery thereof. It includes bipolar grid, positive limit grid and negative pole limit grid, and bipolar grid presss from both sides between positive limit grid and negative pole limit grid, its characterized in that: lead cores are inserted on the bipolar grid, the positive grid and the negative grid, the lead cores penetrate through the middle of the grids and are exposed out of two surfaces of the grids, and active substances are filled in the space between the lead cores and the end faces of the grids. The utility model provides high lead acid battery's specific energy shortens charge time, has created the possibility for it is applied to the electric automobile field.
Description
Technical Field
The utility model relates to a lead acid battery's polar plate, concretely relates to lead acid battery's bipolar plate and battery thereof.
Background
The conventional lead-acid storage battery generally uses a thin lead plate or a lead alloy plate as a grid plate, and a paste-like active material is coated on the grid plate. The lead plate is used as a current collector, the lead plate is provided with transverse ribs and vertical ribs to form a grid plate, and one side of the lead plate is provided with a pole lug which is used for guiding current through the pole lug. The grid plates are coated with positive paste or negative paste, a plurality of grid plates form a cluster, and a lead-acid storage battery is formed by a plurality of groups of positive plates and negative plates. The lead-acid storage battery with the structure restricts the application field of the battery, in particular to the field of electric automobiles, because the battery has heavy weight, low specific energy and slow charging. Therefore, the invention provides a bipolar lead-acid storage battery which is beneficial to overcoming the defects of the traditional lead-acid storage battery.
Disclosure of Invention
The utility model aims at providing a bipolar plate of lead acid battery and battery thereof to the defect of current lead acid battery. The lead-acid storage battery has the advantages of improving the specific energy of the lead-acid storage battery, shortening the charging time and creating the possibility of applying the lead-acid storage battery to the field of electric automobiles.
The technical scheme of the bipolar plate of the utility model is realized like this: it includes bipolar grid, positive limit grid and negative pole limit grid, and bipolar grid presss from both sides between positive limit grid and negative pole limit grid, its characterized in that: lead cores are inserted on the bipolar grid, the positive grid and the negative grid, the lead cores penetrate through the middle of the grids and are exposed out of two surfaces of the grids, and active substances are filled in the space between the lead cores and the end faces of the grids. The grid is made of insulating acid-resistant material.
The utility model discloses better technical scheme is: the lead core is a pure lead or lead alloy column. One side of the bipolar grid is coated and filled with positive active substances, the other side of the bipolar grid is coated and filled with negative active substances, the lead core on one side of the positive side grid is connected with the positive pole, the other side of the positive side grid is coated and filled with positive active substances, the lead core on one side of the negative side grid is connected with the negative pole, and the negative active substances are coated and filled on the other side of the negative side grid. And an electrolyte injection channel is arranged on the bipolar grid. The bipolar plate grid comprises a positive electrode surface and a negative electrode surface, wherein the positive electrode surface is provided with a groove or a boss, and the negative electrode surface is provided with a corresponding boss or a corresponding groove.
The utility model also provides a lead-acid storage battery, it comprises foretell bipolar plate with limit positive plate, limit negative plate, baffle, and bipolar plate presss from both sides between limit positive plate and limit negative plate, all is equipped with the baffle between bipolar plate and limit positive plate, bipolar plate and the limit negative plate, and it has electrolyte to pour into between two adjacent polar plates.
And the positive pole plate and the negative pole plate are provided with a positive pole cover plate and a negative pole cover plate, and a positive pole column and a negative pole column are respectively led out of the positive pole cover plate and the negative pole cover plate.
And the side negative plate is provided with a liquid injection port.
The utility model discloses compare with traditional lead acid battery, owing to can scribble more active material on the grid of same thickness, so under the same volume condition, battery capacity is bigger. Also because of this, the thickness of the active material can be designed to be thinner, thereby remarkably improving the utilization rate of the active material, and thus remarkably improving the specific energy of the battery.
Drawings
Fig. 1 is a schematic structural diagram of a bipolar plate of the present invention.
Fig. 2 is a schematic structural diagram of the lead-acid storage battery of the present invention.
Fig. 3 is the structural schematic diagram of the planar lead-acid battery of the present invention.
Figure 4 is a schematic diagram of a double-sided structure of a bipolar plate of the present invention.
Detailed Description
The present invention will be further explained with reference to specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications to the various equivalent forms of the invention, which may occur to those skilled in the art upon reading the present invention, fall within the scope of the appended claims.
As shown in fig. 1, the bipolar plate of the present invention is implemented as follows: the lead-free battery comprises a bipolar grid 1, a positive side grid 2 and a negative side grid 3, wherein the bipolar grid 1 is clamped between the positive side grid 2 and the negative side grid 3, lead cores 4 are inserted on the bipolar grid 1, the positive side grid 2 and the negative side grid 3, the lead cores 4 penetrate through the middle of the grids and are exposed out of two sides of the grids, and active substances are filled in a space between the lead cores 4 and the end faces of the grids. The polar plate is called grid before coating active substance (lead plaster), the bipolar grid and positive and negative side grids are all made of parts made of plastic plate (any non-metal insulating acid-proof material) and lead core.
As shown in fig. 2, the bipolar plate of the present invention is preferably implemented as follows: the lead core 4 is a pure lead or lead alloy column. One side of the bipolar grid 2 is coated and filled with a positive active substance 5, the other side of the bipolar grid is coated and filled with a negative active substance 6, a lead core 4 on one side of the positive side grid is connected with a positive pole 7, the other side of the bipolar grid is coated and filled with the positive active substance 5, a lead core 4 on one side of the negative side grid 3 is connected with a negative pole 8, and the other side of the bipolar grid is coated and filled with the negative active substance 6. The bipolar grid 1 is provided with an electrolyte injection channel 13. As shown in fig. 4, the bipolar grid includes a positive electrode surface 14 and a negative electrode surface 15, wherein the positive electrode surface is provided with a groove 16 or a boss 17, and the negative electrode surface is provided with a corresponding boss 17 or a corresponding groove 16. Through the clamping of the groove 16 and the boss 17, the binding force and the strength of the bipolar plate grid can be improved. The anode surface 14 is provided with a gluing step 18 and a partition step 19, and the cathode surface 15 is provided with a gluing groove 20. The glue step 18 and the glue groove 20 are engaged, and the spacer step 19 is used to fix the spacer 9.
As shown in fig. 2, the utility model also provides a lead-acid storage battery, it comprises foretell bipolar plate 1, and limit positive plate 2, limit negative plate 3, baffle 9, and bipolar 1 board presss from both sides between limit positive plate 2 and limit negative plate 3, all is equipped with baffle 9 between bipolar plate 1 and limit positive plate 2, bipolar plate 1 and the limit negative plate 3, and it has electrolyte to pour into between two adjacent polar plates.
The utility model discloses the better embodiment of lead acid battery is: and the edge positive plate 2 and the edge negative plate 3 are provided with a positive cover plate 10 and a negative cover plate 11, and a positive pole post 7 and a negative pole post 8 are respectively led out of the positive cover plate and the negative cover plate. The side negative plate 2 is provided with a liquid injection port 12.
The utility model discloses compare with traditional lead acid battery, owing to can scribble more active material on the grid of same thickness, so under the same volume condition, battery capacity is bigger. Also because of this, the thickness of the active material can be designed to be thinner, thereby remarkably improving the utilization rate of the active material, and thus remarkably improving the specific energy of the battery.
The utility model discloses an electric current is transmitted by all lead cores on the grid, and the electric current of traditional battery is transmitted through the busbar through utmost point ear by the grid, so traditional battery is compared to this battery, and the charging and discharging current also can improve by a wide margin, and charge time can be shortened in heavy current charging, and heavy current discharges and can improve the application of battery.
The above embodiments are only used for illustrating the design ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.
Claims (8)
1. The utility model provides a bipolar plate of lead acid battery, it includes bipolar grid, positive limit grid and negative pole limit grid, and bipolar grid presss from both sides between positive limit grid and negative pole limit grid, its characterized in that: lead cores are inserted on the bipolar grid, the positive side grid and the negative side grid, each lead core penetrates through the middle of each grid and is exposed out of two sides of each grid, and active substances are filled in the space between each lead core and the middle end face of each grid.
2. A bipolar plate for a lead-acid battery as claimed in claim 1, wherein: the lead core is a pure lead or lead alloy column.
3. A bipolar plate for a lead-acid battery according to claim 1 or 2, wherein: one side of the bipolar grid is coated and filled with positive active substances, the other side of the bipolar grid is coated and filled with negative active substances, the lead core on one side of the positive side grid is connected with the positive pole, the other side of the positive side grid is coated and filled with positive active substances, the lead core on one side of the negative side grid is connected with the negative pole, and the negative active substances are coated and filled on the other side of the negative side grid.
4. A bipolar plate for a lead-acid battery as claimed in claim 3, wherein: and an electrolyte injection channel is arranged on the bipolar grid.
5. A bipolar plate for a lead-acid battery as claimed in claim 4, wherein: the bipolar plate grid comprises a positive electrode surface and a negative electrode surface, wherein the positive electrode surface is provided with a groove or a boss, and the negative electrode surface is provided with a corresponding boss or a corresponding groove.
6. A lead-acid battery comprising the bipolar plate, positive edge plate, negative edge plate and separator of claim 4, wherein: the bipolar plate is clamped between the edge positive plate and the edge negative plate, the partition plates are arranged between the bipolar plate and the edge positive plate and between the bipolar plate and the edge negative plate, and electrolyte is injected between the adjacent bipolar plate, the edge positive plate and the edge negative plate.
7. A lead-acid battery according to claim 6, wherein: and the positive pole plate and the negative pole plate are provided with a positive pole cover plate and a negative pole cover plate, and a positive pole column and a negative pole column are respectively led out of the positive pole cover plate and the negative pole cover plate.
8. A lead-acid battery according to claim 6, wherein: and the side negative plate is provided with a liquid injection port.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201911349131X | 2019-12-24 | ||
CN201911349131 | 2019-12-24 |
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CN212967764U true CN212967764U (en) | 2021-04-13 |
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CN202021538562.9U Active CN212967764U (en) | 2019-12-24 | 2020-07-29 | Bipolar plate of lead-acid storage battery and storage battery thereof |
CN202010747375.XA Pending CN111883779A (en) | 2019-12-24 | 2020-07-29 | Bipolar plate of lead-acid storage battery and storage battery thereof |
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CN113506879B (en) * | 2021-04-15 | 2022-11-04 | 淄博火炬能源有限责任公司 | Light bipolar lead-acid storage battery and preparation method thereof |
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- 2020-07-29 CN CN202021538562.9U patent/CN212967764U/en active Active
- 2020-07-29 CN CN202010747375.XA patent/CN111883779A/en active Pending
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