CN210325872U - Battery cover plate with failure of turnover valve under high-pressure environment - Google Patents
Battery cover plate with failure of turnover valve under high-pressure environment Download PDFInfo
- Publication number
- CN210325872U CN210325872U CN201921274430.7U CN201921274430U CN210325872U CN 210325872 U CN210325872 U CN 210325872U CN 201921274430 U CN201921274430 U CN 201921274430U CN 210325872 U CN210325872 U CN 210325872U
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- CN
- China
- Prior art keywords
- rivet
- anode
- cathode
- hole
- negative
- 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.)
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- 230000007306 turnover Effects 0.000 title claims description 15
- 238000003825 pressing Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims 6
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003792 electrolyte Substances 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- 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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a battery apron that upset valve became invalid under high pressure environment, anodal rivet pass in proper order and go up the anodal rivet hole on end movable frame, base plate, the anodal weak baffle and the anodal clamp plate, the top rivets with anodal clamp plate, negative pole rivet pass in proper order and go up the negative pole rivet hole on movable frame, base plate, negative pole insulation board and the negative pole clamp plate, the top rivets with the negative pole clamp plate, one side that lies in negative pole rivet hole on the base plate is opened there is the upset valve mounting hole, the welding has the upset valve in the upset valve mounting hole, the upset valve be recessed electrically conductive toper thin slice. The utility model discloses the base plate on be equipped with the upset valve, pour into the battery into when working into when electrolyte, if the inside pressure that produces of battery is too big time, pressure can push up the upset valve and make the upset of upset valve touch negative pole clamp plate and form the short circuit, make it the short circuit, the stop work plays the safety protection effect, has promoted battery safety type, has promoted electric automobile security performance and stability can.
Description
Technical Field
The utility model relates to a battery technical field under the high-pressure environment especially relates to a battery apron that rollover valve became invalid under high-pressure environment.
Background
Along with the development of high-voltage lithium batteries in China, the technical requirements on the battery cover plate are strict, the larger the battery cell capacity is, the higher the requirement on the top cover is, and in order to improve the stability of the cover plate structure and the overall safety and stability of the lithium iron phosphate battery, the structure of the cover plate must be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to compensate prior art's defect, provides a battery apron that rollover valve became invalid under high-pressure environment.
The utility model discloses a realize through following technical scheme:
a battery cover plate with a failure turnover valve in a high-pressure environment comprises an anode rivet, a cathode rivet, an anode connecting sheet, a cathode connecting sheet, an anode small sheet, a cathode small sheet, an upper stop frame, a lower stop frame, a base plate, a cathode insulating plate, an anode weak guide plate, an anode pressing plate and a cathode pressing plate, wherein the anode rivet sequentially penetrates through anode rivet holes in the upper stop frame, the base plate, the anode weak guide plate and the anode pressing plate, the top end of the anode rivet is riveted with the anode pressing plate, the cathode rivet sequentially penetrates through cathode rivet holes in the upper stop frame, the base plate, the cathode insulating plate and the cathode pressing plate, the top end of the cathode pressing plate is riveted with the cathode pressing plate, an explosion-proof hole is arranged in the center of the base plate, an explosion-proof film is arranged in the explosion-proof hole, an explosion-proof sticker is pasted in the explosion-proof hole, a liquid injection hole is arranged on the left side of the base plate, a liquid injection hole sealing sheet, the turnover valve is welded in the turnover valve mounting hole and is a concave conductive conical sheet, the negative insulation plate is provided with a through hole corresponding to the turnover valve mounting hole, the positive connecting sheet and the positive small sheet are sequentially welded below the positive rivet, the negative connecting sheet and the negative small sheet are sequentially welded below the negative rivet, and the positive small sheet and the negative small sheet are respectively welded and connected with two ends of the lower stop frame.
And a plurality of strip-shaped heat dissipation holes corresponding to the central explosion-proof holes of the substrate are formed in the centers of the upper stopping frame and the lower stopping frame.
The positive electrode weak guide plate contains a conductive material and a PPS material, the conductive material and the PPS material are uniformly mixed, and the mixing ratio is 1: 9, so that the positive electrode is provided with low micro-electricity, and the corrosion of the cover plate is reduced.
Sealing rings are arranged between the positive rivet and the negative rivet and between the positive rivet hole and the negative rivet hole of the upper stop moving frame.
The conical turnover sheet at the lower end of the turnover valve is a conductive metal flexible sheet and can be overturned outwards and ejected when the pressure difference between the inside and the outside air exceeds a threshold value. The turnover valve is connected with the base plate through laser welding, the base plate, the positive and negative pressure plates, the stop frame, the positive and negative rivets and the positive and negative insulation sheets are assembled and riveted after welding is completed, all the parts are connected together through a composite welding mode, the turnover valve is welded on one side of a negative electrode, and the bottom of the negative insulation sheet is provided with a hole, so that the turnover valve can be jacked to the negative pressure plate through the hole of the negative insulation plate when being turned over, and the turnover valve is in short circuit.
The utility model has the advantages that: the utility model discloses a laser technology's spot welding mode modified connected mode makes the top cap internal resistance change's possibility reduce, has improved the wholeness ability of battery, and the stop frame improves the apron yield the base plate on be equipped with the upset valve, when electrolyte injection battery began the during operation, if the inside pressure that produces of battery was too big, pressure can push up the upset valve and make the upset of upset valve touch the negative pole clamp plate and form the short circuit, makes it the short circuit, and the stop work plays the safety protection effect, has promoted battery safety type, has promoted electric automobile security performance and stability can, is fit for being applied to the manufacturing of high-pressure lithium iron battery.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the roll-over valve.
Fig. 3 is a schematic view of a substrate structure.
Detailed Description
As shown in figure 1, the battery cover plate with the failure of the turnover valve in the high-pressure environment comprises a positive rivet 1, a negative rivet 2, a positive connecting sheet 3, a negative connecting sheet 4, a positive small sheet 5, a negative small sheet 6, an upper stop bracket 7, a lower stop bracket 8, a base plate 9, a negative insulating plate 10, a positive weak guide plate 11, a positive pressure plate 12 and a negative pressure plate 13, wherein the positive rivet 1 sequentially penetrates through positive rivet holes on the upper stop bracket 7, the base plate 9, the positive weak guide plate 11 and the positive pressure plate 12, the top end of the positive rivet is riveted with the positive pressure plate 12, the negative rivet 3 sequentially penetrates through negative rivet holes on the upper stop bracket 7, the base plate 9, the negative insulating plate 10 and the negative pressure plate 13, the top end of the negative pressure plate is riveted with the negative pressure plate 13, an explosion-proof hole 14 is arranged in the center of the base plate 9, an explosion-proof film 15 is arranged in the explosion-proof hole 14, an explosion-proof paste 16 is pasted, install in annotating the liquid hole 17 and annotate liquid hole mounting plate 18 and become nail 19, it has the upset valve mounting hole 20 to open on the one side that lies in the negative pole rivet hole on base plate 9, the welding has the upset valve 21 in the upset valve mounting hole 20, the upset valve 21 be recessed electrically conductive toper thin slice, negative pole insulation board 10 on open and to have the through-hole 22 corresponding with the upset valve mounting hole 20, anodal connection piece 3 and anodal small piece 5 weld in proper order under anodal rivet 1, negative pole connection piece 4 and negative pole small piece 6 weld in proper order under negative pole rivet 2, anodal small piece 5 and negative pole small piece 6 respectively with the both ends welded connection of lower stop frame 8.
The centers of the upper stop frame 7 and the lower stop frame 8 are respectively provided with a plurality of strip-shaped heat dissipation holes 23 corresponding to the center explosion-proof holes of the substrate.
The positive electrode weak guide plate 11 contains a conductive material and a PPS material, the conductive material and the PPS material are uniformly mixed, and the mixing ratio is 1: 9, so that the positive electrode is provided with low micro-electricity, and the corrosion of the cover plate is reduced.
Claims (3)
1. The utility model provides a battery apron that rollover valve became invalid under high pressure environment which characterized in that: the anti-explosion rivet comprises an anode rivet, a cathode rivet, an anode connecting sheet, a cathode connecting sheet, an anode small sheet, a cathode small sheet, an upper stop frame, a lower stop frame, a substrate, a cathode insulating plate, an anode weak guide plate, an anode pressing plate and a cathode pressing plate, wherein the anode rivet sequentially penetrates through anode rivet holes in the upper stop frame, the substrate, the anode weak guide plate and the anode pressing plate, the top end of the anode rivet is riveted with the anode pressing plate, the cathode rivet sequentially penetrates through cathode rivet holes in the upper stop frame, the substrate, the cathode insulating plate and the cathode pressing plate, the top end of the cathode rivet is riveted with the cathode pressing plate, an anti-explosion hole is formed in the center of the substrate, an anti-explosion membrane is installed in the anti-explosion hole, an anti-explosion paste is pasted in the anti-explosion hole, a liquid injection hole is formed in the left side of the substrate, a liquid injection hole sealing sheet and a formation nail are installed in the liquid injection hole, a, the turnover valve is a concave conductive conical sheet, the negative insulating plate is provided with a through hole corresponding to the turnover valve mounting hole, the positive connecting sheet and the positive small sheet are sequentially welded under the positive rivet, the negative connecting sheet and the negative small sheet are sequentially welded under the negative rivet, and the positive small sheet and the negative small sheet are respectively welded and connected with two ends of the lower stop frame.
2. The cover plate for a battery with a failed rollover valve in a high-pressure environment according to claim 1, wherein: and a plurality of strip-shaped heat dissipation holes corresponding to the central explosion-proof holes of the substrate are formed in the centers of the upper stopping frame and the lower stopping frame.
3. The cover plate for a battery with a failed rollover valve in a high-pressure environment according to claim 1, wherein: sealing rings are arranged between the positive rivet and the negative rivet and between the positive rivet hole and the negative rivet hole of the upper stop moving frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274430.7U CN210325872U (en) | 2019-08-08 | 2019-08-08 | Battery cover plate with failure of turnover valve under high-pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274430.7U CN210325872U (en) | 2019-08-08 | 2019-08-08 | Battery cover plate with failure of turnover valve under high-pressure environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210325872U true CN210325872U (en) | 2020-04-14 |
Family
ID=70128699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921274430.7U Active CN210325872U (en) | 2019-08-08 | 2019-08-08 | Battery cover plate with failure of turnover valve under high-pressure environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210325872U (en) |
-
2019
- 2019-08-08 CN CN201921274430.7U patent/CN210325872U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Xingtai Financial Leasing Co.,Ltd. Assignor: HEFEI LIXIANG CELL TECHNOLOGY CO.,LTD. Contract record no.: X2022980006726 Denomination of utility model: A battery cover plate with turnover valve failure under high pressure environment Granted publication date: 20200414 License type: Exclusive License Record date: 20220531 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A battery cover plate with turnover valve failure under high pressure environment Effective date of registration: 20220602 Granted publication date: 20200414 Pledgee: Anhui Xingtai Financial Leasing Co.,Ltd. Pledgor: HEFEI LIXIANG CELL TECHNOLOGY CO.,LTD. Registration number: Y2022980006907 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230816 Granted publication date: 20200414 Pledgee: Anhui Xingtai Financial Leasing Co.,Ltd. Pledgor: HEFEI LIXIANG CELL TECHNOLOGY CO.,LTD. Registration number: Y2022980006907 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Anhui Xingtai Financial Leasing Co.,Ltd. Assignor: HEFEI LIXIANG CELL TECHNOLOGY CO.,LTD. Contract record no.: X2022980006726 Date of cancellation: 20230831 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Xingtai Financial Leasing Co.,Ltd. Assignor: HEFEI LIXIANG CELL TECHNOLOGY CO.,LTD. Contract record no.: X2024980007492 Denomination of utility model: A battery cover plate with flipping valve failure in high-pressure environment Granted publication date: 20200414 License type: Exclusive License Record date: 20240626 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A battery cover plate with flipping valve failure in high-pressure environment Granted publication date: 20200414 Pledgee: Anhui Xingtai Financial Leasing Co.,Ltd. Pledgor: HEFEI LIXIANG CELL TECHNOLOGY CO.,LTD. Registration number: Y2024980025418 |