CN110896132A - Explosion-proof combined power battery cover plate - Google Patents
Explosion-proof combined power battery cover plate Download PDFInfo
- Publication number
- CN110896132A CN110896132A CN201911094226.1A CN201911094226A CN110896132A CN 110896132 A CN110896132 A CN 110896132A CN 201911094226 A CN201911094226 A CN 201911094226A CN 110896132 A CN110896132 A CN 110896132A
- Authority
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- China
- Prior art keywords
- cover plate
- explosion
- pole column
- upper cover
- electrode connecting
- 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.)
- Pending
Links
- 239000004033 plastic Substances 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000006258 conductive agent Substances 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims 4
- 238000007689 inspection Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000012827 research and development Methods 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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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
- 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
- H01M50/147—Lids or covers
-
- 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses an explosion-proof combined power battery cover plate, which comprises an upper cover plate, pole columns, two plastic supports and connecting flexible sheets, wherein each pole column comprises a positive pole and a negative pole, the pole columns are arranged on the upper cover plate, an explosion-proof valve and an explosion-proof valve protection film are arranged in the center of the upper cover plate, the two plastic supports are respectively fixed on the lower surface of the upper cover plate and correspond to the positive pole column and the negative pole column, each connecting flexible sheet comprises a positive connecting flexible sheet and a negative connecting flexible sheet, the two connecting flexible sheets are respectively stacked and fixed on the lower parts of the two plastic supports, the connecting flexible sheets are provided with more than two bending lines with axially symmetrical center lines of the cover plates, and the bending lines are arched in an arc shape.
Description
Technical Field
The invention belongs to the field of battery production, and particularly relates to a combined type power battery cover plate capable of preventing explosion.
Background
With the global attention on energy crisis, new energy automobiles have shown various advantages and rapidly rise in the whole automobile industry, and research and development of batteries serving as core power sources of new energy automobiles are also key points in research and development of technologies of various automobiles and enterprises, wherein the three performances are difficult points in research and development of power batteries, namely capacity of the power batteries, qualification rate in the production process and use safety of the batteries.
The power cover plate is an important component of the power battery, and how to improve the performance of the power battery based on the above three aspects is also a key problem to be solved by related technicians.
Disclosure of Invention
In order to solve the problems of qualified rate and battery use safety in the production process, the invention designs an explosion-proof combined power battery cover plate, which is characterized in that: comprises an upper cover plate, a positive pole column, a negative pole column, a plastic bracket, a positive pole connecting film and a negative pole connecting film; the upper cover plate is in a strip sheet shape, the center and two ends of the upper cover plate are provided with circular hollows, the center of the upper cover plate is provided with an explosion-proof valve in a hollow manner, one of the hollows in the two ends of the upper cover plate is provided with a positive pole column in a hollow manner, and the other hollow is provided with a negative pole column in a hollow manner; the outer sides of the upper parts of the positive pole column and the negative pole column are fixed with plastic rings, and the outer sides of the lower parts of the positive pole column and the negative pole column are fixed with insulating sealing gaskets; the two plastic supports are fixed on the lower surface of the upper cover plate, correspond to the positive pole column and the negative pole column, and are provided with circular hollows for the insulating sealing gaskets to pass through; the positive electrode connecting soft sheet and the negative electrode connecting soft sheet are respectively provided with two sheets which are stacked up and down, the middle parts of the positive electrode connecting soft sheet and the negative electrode connecting soft sheet are fixed through ultrasonic welding and are respectively fixed at the lower parts of the two plastic supports, the positive electrode connecting soft sheet and the negative electrode connecting soft sheet are respectively provided with two bending lines which are axially symmetrical by taking the longitudinal center line of the cover plate as an axis, and the bending lines are arched in an arc shape.
Preferably, an explosion-proof valve protective film is fixed on the upper part of the explosion-proof valve.
Preferably, the insulating sealing gasket is made of fluororubber, the positive pole column, the positive pole connecting film and the explosion-proof valve are made of aluminum 1060, the negative pole column is made of a composite material of copper T2 and aluminum 1060, the positive pole connecting film is made of copper T2, the plastic support is made of PP material, the upper cover plate is made of aluminum 3003, the explosion-proof valve protection film is made of PET material, the plastic ring at the negative pole column is made of PPS +30% glass fiber, and the plastic ring at the positive pole column is made of PPS +30% glass fiber + conductive agent.
Preferably, in the arc-shaped arch, R =1mm of a circle on the upper positive electrode connecting film and the negative electrode connecting film, and R =0.4mm of a circle on the lower positive electrode connecting film and the negative electrode connecting film.
Preferably, the positive electrode connecting film and the negative electrode connecting film are arranged in a manner that the included angle of the upper layer at two sides of the bending position is 180 degrees, and the included angle of the lower layer at two sides of the bending position is 90 degrees.
Preferably, the plastic support is provided with a lock hole, and the lower surface of the upper cover plate is provided with a lock hook corresponding to the lock hole.
The production process comprises the following steps: the method comprises the steps of cover plate stamping, cleaning and drying, appearance full inspection, injection molding of a sealing ring (PFA), welding of an explosion-proof valve, helium full inspection, turnover piece welding, helium full inspection, assembly, riveting, laser welding, appearance full inspection, pressure resistance/resistance and packaging.
Drawings
FIG. 1 is a schematic view of a first aspect of the present invention.
FIG. 2 is a schematic view of a second aspect of the present invention.
FIG. 3 is a third perspective view of the present invention.
Fig. 4 is a schematic structural diagram of a plastic bracket.
Detailed Description
Example 1
As shown in fig. 1-3, the explosion-proof combined power battery cover plate of the present invention is characterized in that: comprises an upper cover plate 1, a positive pole post 3, a negative pole post 4, a plastic bracket 8, a positive pole connecting film 5 and a negative pole connecting film 6; the upper cover plate 1 is in a strip sheet shape, circular hollows are formed in the center and two ends of the upper cover plate, the explosion-proof valve 2 is arranged in the hollow position in the center, one of the hollow parts in the two ends is provided with the positive pole column 3, and the other hollow part is provided with the negative pole column 4; the outer sides of the upper parts of the positive pole post 3 and the negative pole post 4 are fixed with plastic rings 7, and the outer sides of the lower parts are fixed with insulating sealing gaskets 9; the two plastic supports 8 are fixed on the lower surface of the upper cover plate 1, correspond to the positive pole posts 3 and the negative pole posts 4, and are provided with circular hollows 12 for the insulating sealing gaskets 9 to pass through; the anode connecting soft sheet 5 and the cathode connecting soft sheet 6 are respectively provided with two sheets which are stacked up and down, the middle parts 11 of the anode connecting soft sheet and the cathode connecting soft sheet are fixed through ultrasonic welding and are respectively fixed at the lower parts of the two plastic supports 8, the anode connecting soft sheet 5 and the cathode connecting soft sheet 6 are respectively provided with more than two bending lines 10 which are axially symmetrical by taking the longitudinal central line of the cover plate 1 as an axis, and the bending lines 10 are arched in an arc shape.
More specifically, the upper part of the explosion-proof valve 2 is fixed with a protective film of the explosion-proof valve 2.
More specifically, insulating seal pad 9 is the fluororubber system, positive post 3, anodal connection film 5, explosion-proof valve 2 are aluminium 1060 system, negative pole post 4 is copper T2 and aluminium 1060 combined material system, anodal connection film 5 is copper T2 system, plastic support 8 is the PP material system, upper cover plate 1 is aluminium 3003 system, explosion-proof valve 2 protection film is the PET material system, and 4 plastic rings 7 of negative pole post are PPS +30% glass fiber system, and 3 plastic rings 7 of positive post are PPS +30% glass fiber + conducting agent system.
More specifically, in the arc arch, R =1mm of a circle on the upper positive electrode connecting film 5 and the negative electrode connecting film 6, and R =0.4mm of a circle on the lower positive electrode connecting film 5 and the negative electrode connecting film 6.
More specifically, the positive electrode connecting flexible sheet 5 and the negative electrode connecting flexible sheet 6 are arranged, the included angle of the upper layer at two sides of the bending position is 180 degrees, and the included angle of the lower layer at two sides of the bending position is 90 degrees.
More specifically, there is a lockhole 13 on the plastic support 8, upper cover plate 1 lower surface have the latch hook with the lockhole corresponds.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an explosion-proof combined power battery apron which characterized in that: comprises an upper cover plate, a positive pole column, a negative pole column, a plastic bracket, a positive pole connecting film and a negative pole connecting film; the upper cover plate is in a strip sheet shape, the center and two ends of the upper cover plate are provided with circular hollows, the center of the upper cover plate is provided with an explosion-proof valve in a hollow manner, one of the hollows in the two ends of the upper cover plate is provided with a positive pole column in a hollow manner, and the other hollow is provided with a negative pole column in a hollow manner; the outer sides of the upper parts of the positive pole column and the negative pole column are fixed with plastic rings, and the outer sides of the lower parts of the positive pole column and the negative pole column are fixed with insulating sealing gaskets; the two plastic supports are fixed on the lower surface of the upper cover plate, correspond to the positive pole column and the negative pole column, and are provided with circular hollows for the insulating sealing gaskets to pass through; the positive electrode connecting soft sheet and the negative electrode connecting soft sheet are respectively provided with two sheets which are stacked up and down, the middle parts of the positive electrode connecting soft sheet and the negative electrode connecting soft sheet are fixed through ultrasonic welding and are respectively fixed at the lower parts of the two plastic supports, the positive electrode connecting soft sheet and the negative electrode connecting soft sheet are respectively provided with two bending lines which are axially symmetrical by taking the longitudinal center line of the cover plate as an axis, and the bending lines are arched in an arc shape.
2. The explosion-proof combined type power battery cover plate according to claim 1, characterized in that: and an explosion-proof valve protective film is fixed on the upper part of the explosion-proof valve.
3. The explosion-proof combined type power battery cover plate according to claim 2, characterized in that: the insulating sealing gasket is made of fluororubber, the positive pole column, the positive pole connecting soft sheet and the explosion-proof valve are made of aluminum 1060, the negative pole column is made of a copper T2 and aluminum 1060 composite material, the positive pole connecting soft sheet is made of copper T2, the plastic support is made of a PP material, the upper cover plate is made of aluminum 3003, the explosion-proof valve protective film is made of a PET material, the plastic ring at the position of the negative pole column is made of PPS (polyphenylene sulfide) and 30% glass fiber, and the plastic ring at the position of the positive pole column is made of PPS (polyphenylene sulfide) and 30% glass fiber and a conductive agent.
4. The explosion-proof combined type power battery cover plate according to claim 1, characterized in that: in the arc arch, R =1mm of a circle on the upper positive electrode connecting film and the negative electrode connecting film, and R =0.4mm of a circle on the lower positive electrode connecting film and the negative electrode connecting film.
5. The explosion-proof combined type power battery cover plate according to claim 4, characterized in that: the positive electrode is connected with the flexible sheet, the negative electrode is connected with the flexible sheet, the included angle of the upper layer at the two sides of the bending position is 180 degrees, and the included angle of the lower layer at the two sides of the bending position is 90 degrees.
6. The explosion-proof combined type power battery cover plate according to claim 1, characterized in that: the plastic support is provided with a lock hole, and the lower surface of the upper cover plate is provided with a lock hook corresponding to the lock hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094226.1A CN110896132A (en) | 2019-11-11 | 2019-11-11 | Explosion-proof combined power battery cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094226.1A CN110896132A (en) | 2019-11-11 | 2019-11-11 | Explosion-proof combined power battery cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110896132A true CN110896132A (en) | 2020-03-20 |
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ID=69786564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911094226.1A Pending CN110896132A (en) | 2019-11-11 | 2019-11-11 | Explosion-proof combined power battery cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110896132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618596A (en) * | 2020-06-17 | 2020-09-04 | 苏州三众新能源科技有限公司 | Production process of explosion-proof lithium battery cover plate |
| CN112736340A (en) * | 2020-12-30 | 2021-04-30 | 武汉富航精密工业有限公司 | Injection molding assembly method of secondary battery top cover assembly and top cover assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810858A (en) * | 2016-04-11 | 2016-07-27 | 江苏宇昊新能源科技有限公司 | Lithium battery upper cover with bipolar connecting sheets |
| CN205666257U (en) * | 2016-05-27 | 2016-10-26 | 杜福宙 | Utmost point post riveting flexible connecting piece's lithium ion battery cover plate |
| CN206370449U (en) * | 2016-12-28 | 2017-08-01 | 靖江市东达铝业有限公司 | A kind of battery cap being flexible coupling with both positive and negative polarity |
| CN212136488U (en) * | 2019-11-11 | 2020-12-11 | 江苏恒驰动力科技有限公司 | Explosion-proof combined power battery cover plate |
-
2019
- 2019-11-11 CN CN201911094226.1A patent/CN110896132A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810858A (en) * | 2016-04-11 | 2016-07-27 | 江苏宇昊新能源科技有限公司 | Lithium battery upper cover with bipolar connecting sheets |
| CN205666257U (en) * | 2016-05-27 | 2016-10-26 | 杜福宙 | Utmost point post riveting flexible connecting piece's lithium ion battery cover plate |
| CN206370449U (en) * | 2016-12-28 | 2017-08-01 | 靖江市东达铝业有限公司 | A kind of battery cap being flexible coupling with both positive and negative polarity |
| CN212136488U (en) * | 2019-11-11 | 2020-12-11 | 江苏恒驰动力科技有限公司 | Explosion-proof combined power battery cover plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618596A (en) * | 2020-06-17 | 2020-09-04 | 苏州三众新能源科技有限公司 | Production process of explosion-proof lithium battery cover plate |
| CN112736340A (en) * | 2020-12-30 | 2021-04-30 | 武汉富航精密工业有限公司 | Injection molding assembly method of secondary battery top cover assembly and top cover assembly |
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