CN211208492U - Battery cover plate of flat-film high-explosion-point-value explosion-proof film - Google Patents
Battery cover plate of flat-film high-explosion-point-value explosion-proof film Download PDFInfo
- Publication number
- CN211208492U CN211208492U CN201922345006.3U CN201922345006U CN211208492U CN 211208492 U CN211208492 U CN 211208492U CN 201922345006 U CN201922345006 U CN 201922345006U CN 211208492 U CN211208492 U CN 211208492U
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- Prior art keywords
- explosion
- rivet
- cathode
- anode
- plate
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- 239000012528 membrane Substances 0.000 claims abstract description 38
- 238000004880 explosion Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 3
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 20
- 229910052782 aluminium Inorganic materials 0.000 description 20
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram 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
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a flat membrane high explosion point value rupture membrane's battery apron, anodal rivet pass the rivet hole on last movable rack, base plate, the weak baffle of anodal and the positive clamp plate in proper order, the top rivets with anodal clamp plate, negative pole rivet pass the rivet hole on last movable rack, base plate, negative pole insulation board and the negative pole clamp plate in proper order, the top rivets with the negative pole clamp plate, opens at the center of base plate has integrative explosion-proof hole, welds high explosion point value rupture membrane in the rupture hole to paste waterproof ventilated membrane, it has the notes liquid hole to open in the base plate left side, annotates liquid hole mounting and becomes the nail in annotating the downthehole installation of liquid. The utility model discloses a mode of connection that laser technology's spot welding mode improved makes the top cap internal resistance change reduce, has improved the wholeness ability of battery, and the locking frame improves the apron yield, and under certain atmospheric pressure, integrative rupture membrane is opened, 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.
Description
Technical Field
The utility model relates to a battery technical field especially relates to a battery apron of high explosion value rupture membrane 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 aims at providing a battery cover plate of explosion-proof membrane of flat membrane high explosion point value in order to compensate the defect of prior art.
The utility model discloses a realize through following technical scheme:
a battery cover plate of a flat-film high-explosion-point-value anti-explosion film 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 movable frame, a lower movable frame, a base plate, a cathode insulating plate, a cathode pressing plate, an anode weak guide plate and an anode pressing plate, wherein the anode rivet sequentially penetrates through rivet holes in the upper movable 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 cathode pressing plate, the cathode rivet sequentially penetrates through rivet holes in the upper movable 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 integrated anti-explosion hole is formed in the center of the base plate, the high-explosion-point-value anti-explosion film is welded in the anti-explosion hole, a liquid injection hole is formed in the left; the left ends of the positive connecting piece, the positive small piece and the lower stopping frame are sequentially welded below the positive rivet, and the right ends of the negative connecting piece, the negative small piece and the lower stopping frame are sequentially welded below the negative rivet.
The explosion-proof membrane is connected with the base plate in a laser welding mode.
The explosion-proof membrane with the high explosion point value is a flat membrane and is directly formed by punching. The explosion-proof membrane is a plane and has no concave shape, so the explosion point value is larger.
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. therefore, the anode is provided with low micro-electricity, and the corrosion of the cover plate is reduced. The resistance value from the aluminum pressing plate to the substrate after the anode weak guide plate is manufactured into a finished product is 100-5000 omega, and the anode is weak in conductivity after the anode weak guide plate is manufactured into the finished product and has an anti-corrosion protection effect on the aluminum shell.
And sealing rings are respectively arranged between the base plate and the anode rivet and between the base plate and the cathode rivet.
The whole structure is symmetrical, and the shapes of all accessories on the two sides of the substrate are consistent.
The explosion-proof membrane with the high explosion point value is welded on the cover plate in a laser mode, is a flat membrane and is formed by direct stamping without a nicking process, so that the pressure resistance of the explosion-proof membrane is high, when the battery cover plate is impacted by a high-pressure environment, the explosion-proof membrane can be kept complete and not damaged, the explosion-proof membrane is not broken when the internal pressure is too high when the cover plate is welded with an aluminum shell, and the limit value of pressure resistance of the aluminum shell when the cover plate is welded with the aluminum shell can be obtained. The specific principle is as follows: the cover plate of the rupture membrane with the high explosion point value is manufactured, the rupture membrane of the cover plate is not broken under the high-pressure environment, and holes are punched on the side edge of the aluminum shell. The cover plate is connected with the aluminum shell in a laser welding mode, pressure is injected into the side hole of the aluminum shell, the pressure value is increased progressively until the aluminum shell is broken, and the maximum pressure value which can be borne by the aluminum shell is recorded.
The utility model has the advantages that: the utility model discloses a mode of connection that laser technology's spot welding mode improved makes the top cap internal resistance change reduce, has improved the wholeness ability of battery, and the locking frame improves the apron yield, and under certain atmospheric pressure, integrative rupture membrane is opened, 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 installation structure of the present invention.
Detailed Description
As shown in figure 1, the battery cover plate of the flat-film high-explosion-point-value rupture membrane comprises a positive rivet 12, a negative rivet 11, a positive connecting sheet 8, a negative connecting sheet 7, a positive small sheet 10, a negative small sheet 9, an upper stop frame 15, a lower stop frame 5, a base plate 1, a negative insulating plate 13, a negative pressing plate 14, a positive weak guide plate 3 and a positive pressing plate 4, wherein the positive rivet 12 sequentially penetrates through rivet holes on the upper stop frame 15, the base plate 1, the positive weak guide plate 3 and the positive pressing plate 4, the top end of the positive rivet is riveted with the positive pressing plate 4, the negative rivet 11 sequentially penetrates through rivet holes on the upper stop frame 15, the base plate 1, the negative insulating plate 13 and the negative pressing plate 14, the top end of the negative pressing plate is riveted with the negative pressing plate 14, an integral explosion-proof hole 20 is formed in the center of the base plate 1, a high-explosion-point-value rupture membrane 2 is welded in the explosion-proof hole 20 and is attached with, installing a liquid injection hole sealing sheet 18 and a formation nail 17 in the liquid injection hole 21; the left ends of the positive connecting piece 8, the positive small piece 10 and the lower stop frame 5 are sequentially welded under the positive rivet 12, and the right ends of the negative connecting piece 7, the negative small piece 9 and the lower stop frame 5 are sequentially welded under the negative rivet 11.
The explosion-proof membrane 2 is connected with the base plate 1 in a laser welding mode.
The explosion-proof membrane with the high explosion point value is a flat membrane and is directly formed by punching.
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. therefore, the anode is provided with low micro-electricity, and the corrosion of the cover plate is reduced. The resistance value from the aluminum pressing plate to the substrate after the anode weak guide plate is manufactured into a finished product is 100-5000 omega, and the anode is weak in conductivity after the anode weak guide plate is manufactured into the finished product and has an anti-corrosion protection effect on the aluminum shell.
And sealing rings 19 are respectively arranged between the base plate and the positive rivet and between the base plate and the negative rivet.
The whole structure is symmetrical, and the shapes of all accessories on the two sides of the substrate are consistent.
The explosion-proof membrane 2 with the high explosion point value is welded on the cover plate in a laser mode, the explosion-proof membrane is a flat membrane and is formed by direct stamping without a nicking process, so that the pressure resistance of the explosion-proof membrane is high, when the battery cover plate is internally impacted by a high-pressure environment, the explosion-proof membrane can be kept complete and not damaged, the explosion-proof membrane is not broken when the internal pressure is too high when the cover plate is welded with an aluminum shell, and the limit value of the pressure resistance of the aluminum shell when the cover plate is welded with the aluminum shell can be obtained. The specific principle is as follows: the cover plate of the rupture membrane with high explosion point value is manufactured, the rupture membrane of the cover plate is not broken under the high-pressure environment, and the hole 22 is punched at the side edge of the aluminum shell 16. The cover plate is connected with the aluminum shell 16 in a laser welding mode, pressure is injected from the side hole of the aluminum shell 16, the pressure value is increased gradually until the aluminum shell is broken, and the maximum pressure value which can be borne by the aluminum shell is recorded.
Claims (4)
1. The utility model provides a battery apron of high explosion point value rupture membrane of flat membrane which characterized in that: the anti-explosion device 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, a cathode pressing plate, an anode weak guide plate and an anode pressing plate, wherein the anode rivet sequentially penetrates through 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 cathode pressing plate, the cathode rivet sequentially penetrates through the 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 integral anti-explosion hole is formed in the center of the substrate, a high-explosion-point-value anti-explosion film is welded in; the explosion-proof membrane with the high explosion point value is a flat membrane and is directly formed by punching; a liquid injection hole is formed in the left side of the base plate, and a liquid injection hole sealing sheet and a formed nail are installed in the liquid injection hole; the left ends of the positive connecting piece, the positive small piece and the lower stopping frame are sequentially welded below the positive rivet, and the right ends of the negative connecting piece, the negative small piece and the lower stopping frame are sequentially welded below the negative rivet.
2. The battery cover plate of the flat-film high-explosion-point-value explosion-proof film according to claim 1, characterized in that: the explosion-proof membrane is connected with the base plate in a laser welding mode.
3. The battery cover plate of the flat-film high-explosion-point-value explosion-proof film according to claim 1, characterized in that: 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.
4. the battery cover plate of the flat-film high-explosion-point-value explosion-proof film according to claim 1, characterized in that: and sealing rings are respectively arranged between the base plate and the anode rivet and between the base plate and the cathode rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922345006.3U CN211208492U (en) | 2019-12-24 | 2019-12-24 | Battery cover plate of flat-film high-explosion-point-value explosion-proof film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922345006.3U CN211208492U (en) | 2019-12-24 | 2019-12-24 | Battery cover plate of flat-film high-explosion-point-value explosion-proof film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211208492U true CN211208492U (en) | 2020-08-07 |
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ID=71884413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922345006.3U Active CN211208492U (en) | 2019-12-24 | 2019-12-24 | Battery cover plate of flat-film high-explosion-point-value explosion-proof film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211208492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284608A (en) * | 2021-12-28 | 2022-04-05 | 苏州时运佳塑胶制品有限公司 | New energy automobile lithium cell apron |
-
2019
- 2019-12-24 CN CN201922345006.3U patent/CN211208492U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284608A (en) * | 2021-12-28 | 2022-04-05 | 苏州时运佳塑胶制品有限公司 | New energy automobile lithium cell apron |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A battery cover plate with flat film high explosion point value explosion-proof film Effective date of registration: 20230524 Granted publication date: 20200807 Pledgee: Jiujiang Bank Co.,Ltd. Hefei Dangtu Road sub branch Pledgor: Anhui Lixiang Battery Technology Co.,Ltd. Registration number: Y2023980041573 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200807 Pledgee: Jiujiang Bank Co.,Ltd. Hefei Dangtu Road sub branch Pledgor: Anhui Lixiang Battery Technology Co.,Ltd. Registration number: Y2023980041573 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |