CN102299273A - Sealed connecting and explosion-proof device of electrode pole on top cover of powered lithium battery and manufacturing method thereof - Google Patents
Sealed connecting and explosion-proof device of electrode pole on top cover of powered lithium battery and manufacturing method thereof Download PDFInfo
- Publication number
- CN102299273A CN102299273A CN2010102127719A CN201010212771A CN102299273A CN 102299273 A CN102299273 A CN 102299273A CN 2010102127719 A CN2010102127719 A CN 2010102127719A CN 201010212771 A CN201010212771 A CN 201010212771A CN 102299273 A CN102299273 A CN 102299273A
- Authority
- CN
- China
- Prior art keywords
- teflon
- explosion
- conical surface
- top cover
- electrode column
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000004809 Teflon Substances 0.000 claims abstract description 97
- 229920006362 Teflon® Polymers 0.000 claims abstract description 97
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 238000001746 injection moulding Methods 0.000 claims abstract description 3
- 239000003292 glue Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000032683 aging Effects 0.000 abstract description 7
- 230000005489 elastic deformation Effects 0.000 abstract description 2
- 239000003792 electrolyte Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000004880 explosion Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000002950 deficient Effects 0.000 description 5
- 239000008393 encapsulating agent Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a sealed connecting and explosion-proof device of an electrode pole on the top cover of a powered lithium battery and a manufacturing method thereof. The device comprises a top cover stamping parts 1, a lock nut 2, a plastic washer 3, a teflon sealing washer 4 with a conical surface, a teflon sealing washer 5 with a conical surface, an electrode pole 6 with a conical surface, an injection molding 7, an explosion-proof lock screw 8, a teflon sealing washer 9, a teflon sealing washer 10, a teflon explosion-proof film 11, an explosion-proof valve body 12 and a circumferential laser welding 13. in the invention, the electrode pole with the conical surface is arranged and the conical surface effect is utilized to lead the teflon sealing washers to generate elastic deformation in radial direction; when the lock nut 2 is locked, the purpose of reliable sealing for the plane and the hole can be reached. The explosion-proof device selects teflon with excellent performance as the sealing washer and the explosion-proof film and uses the screw to connect and compress. The device provided by the invention has the advantages of excellent sealing, strong corrosion resistance, aging resistance, less pressure releasing damage, wide impact range of high and low temperature resistance, simple manufacturing and assembling process, stable and reliable explosion-proof safety performance and the like.
Description
Technical field
The invention belongs to the dynamic lithium battery field, relate to dynamic lithium battery top cover electrode column and be tightly connected and explosion-protection equipment and manufacture method thereof.
Background technology
Low-carbon economy is a development of global economy trend, and China also is the positive advocate of low-carbon economy, and ev industry is as the mainstay of low-carbon economy, and its potentiality are inestimable.The well-known growth Frost ﹠amp of consulting firm in the whole world; Sullivan thinks that following 10 years is that the Chinese automobile industry drives the critical period that changes to the driven by power power assembly by fossil fuel, is the major opportunity phase that native country driven by power power assembly supplier faces.Dynamic lithium battery is the core component of driven by power power assembly, and its cost accounts for the 50%-70% of power assembly cost, and the dynamic lithium battery industry faces the significant development opportunity in the process of Chinese automobile industrial transformation.
Though dynamic lithium battery faces the opportunity of a lifetime, the research and development of current driving force lithium battery, the manufacturing also exists a lot of difficulties and defective, the manufacturing process complexity, yield is lower.There is electrode column poor sealing rate height in the current driving force lithium battery, and air-tightness is relatively poor, and encapsulant electrolyte resistance corrosive power is relatively poor, low temperature resistant limited (20 ℃), defective such as can not use winter at low temp areas such as the north, and the region is poor for applicability.
Dynamic lithium battery is (as high temperature, short circuit is overcharged, overdischarge, vibration, extruding and bump etc.) under unusual situation, and smoldering can appear in battery, catch fire, even blast.Therefore, improving battery safety is even more important.Battery under abnormal conditions, the rapid heat release of battery, battery is sealed in the airtight battery case, the battery case internal pressure sharply increases, and surpasses the intensity of battery case, will explode, cause the person, property is subjected to great loss, therefore needs design safety sealing and decompression anti-explosion device reliably.Decompression anti-explosion device will keep the sealing inside and outside the battery case when the battery normal operating conditions, unusual at battery, and explosion pressure release timely when battery case pressure is elevated to dangerous values reduces the possibility that the battery case blast takes place.At present the explosion-protection equipment that uses is as 1) Copper Foil is welded on the lamina tecti explosionproof hole, and Copper Foil is subject to electrolyte corrosion, welding procedure complexity, very high to its welding process requirement, quality is difficult to be guaranteed, and is prone to gas leakage, leak situations such as electrolyte, the Copper Foil accidental damage will cause entire cell to be scrapped.2) compress 3 layers of combined films with the interference of 3 layers of aluminium circle, Mao Jie explosion-protection equipment then, number of spare parts too many (12), interference compresses that the mode reliability is lower, and sealing is relatively poor, complex manufacturing, yield is lower, as long as and have a skim to damage, entire cell will be scrapped.3) steel ball adds the relief valve of spring, and gas tightness is bad, and steel ball is subject to the electrolyte corrosion, with the valve body adhesion, causes explosion to be lost efficacy.
Substance of the present invention has comprehensively solved battery cap (thin metallic stamping pieces, generally about 1MM) electrode column sealing air-tightness is relatively poor, encapsulant electrolyte resistance corrosive power a little less than, ageing-resistant indifferent, the high-low temperature resistant impact range is narrow, and the explosion-protection equipment air-tightness is relatively poor, and security performance is not high, manufacturing assembly technology complexity, problems such as quality fraction defective height.The present invention has air-tightness good (anti-hyperbar), and is corrosion-resistant, and low temperature resistant (40 ℃) are high temperature resistant, ageing-resistant, reliability and safe, the region applicability is wide, and is simple and reliable for structure, the manufacturing assembly technology is simple, and large-scale production is easy, product quality yield advantages of higher.The rupture pressure disc accidental damage is replaceable, and battery can reuse, low-carbon environment-friendly.
Summary of the invention
At above-mentioned defective, the invention provides dynamic lithium battery top cover electrode column and be tightly connected and explosion-protection equipment and manufacture method thereof.Its objective is to solve electrode column sealing poor air-tightness, a little less than the encapsulant electrolyte resistance corrosive power, ageing-resistant indifferent, the high-low temperature resistant impact range is narrow, the explosion-protection equipment poor air-tightness, and reliability and fail safe are low, manufacturing assembly technology complexity, problems such as quality fraction defective height.
To achieve these goals, the dynamic lithium battery top cover electrode column taked of the present invention is tightly connected and the technical pattern scheme of explosion-protection equipment is:
Dynamic lithium battery top cover electrode column provided by the present invention is tightly connected and explosion-protection equipment, comprises stamping top cover spare 1, locking nut 2, plastic washer 3, Teflon (Teflon) seal washer 4 of the band conical surface, Teflon (Teflon) sealing ring 5 of the band conical surface, the electrode column 6 of the band conical surface, moulding 7, explosion-proof lock screw 8, Teflon (Teflon) seal washer 9, Teflon (Teflon) seal washer 10, Teflon (Teflon) rupture pressure disc 11, explosion-proof valve body 12, circumference laser welding 13.Because the electrolyte corrosivity of dynamic lithium battery is very strong, it is very difficult to satisfy rubber-like encapsulant corrosion-resistant and high-low temperature resistant (40 ℃～+ 125 ℃) performance simultaneously.The present invention has adopted Teflon (Teflon) as encapsulant, and it has excellent corrosion resistance, sealing, electrical insulating property, high-low temperature resistant (190 ℃～+ 260 ℃), advantage such as ageing-resistant ability is strong.Stamping top cover spare is because be Sheet Metal Forming Technology, and flatness is difficult to the standard that reaches higher, is limited by the structure of dynamic lithium battery again, and the plane that can seal is limited, and in order to improve sealing reliability, so hole also needs positiver sealing.The present invention has designed the electrode column 6 of the band conical surface, when nut 2 lockings, Teflon (Teflon) seal washer 4 of the band conical surface be pressed on the plane of stamping top cover spare 1 closely and the conical surface of the electrode column 6 of the band conical surface on, with the conical surface of the electrode column 6 of the conical surface Teflon (Teflon) sealing ring 5 of the band conical surface is produced radial compression simultaneously, elastic deformation takes place in Teflon (Teflon) sealing ring 5 of the band conical surface, and both reach the effect of the positiver sealing of plane and hole jointly.
Explosion-protection equipment: this explosion-protection equipment has excellent corrosion resistance, excellent air-tightness, electrical insulating property, high-low temperature resistant (190 ℃～+ 260 ℃), advantage such as ageing-resistant ability is strong, and it is simple to make assembly technology, and the anti-explosion safety performance is reliable and stable.Specifically by tapped explosion-proof valve body 12, Teflon (Teflon) seal washer 10, Teflon (Teflon) rupture pressure disc 11, Teflon (Teflon) seal washer 9, explosion-proof lock screw 8 is formed.Certain thickness Teflon (Teflon) seal washer 10 and Teflon (Teflon) seal washer 9 play the effect of sealing and protection Teflon (Teflon) rupture pressure disc 11.The side opens relief hole but not the explosion-proof lock screw 8 of relief hole is opened on the top, prevents that foreign matter from entering explosion-protection equipment, plays the effect of protection Teflon (Teflon) rupture pressure disc 11; Side perforate shunting pressure release can reach impulsive force and the destructive purpose when reducing the explosion pressure release.Replaceable as the rupture pressure disc accidental damage, battery can continue to use low-carbon environment-friendly.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present invention
Fig. 2 is that the electrode column of the band conical surface of the present invention is tightly connected and explosion-protection equipment structural profile schematic diagram
Fig. 3 is the electrode column of the band conical surface of the present invention generalized section that is tightly connected
Fig. 4 is an explosion-protection equipment generalized section of the present invention
Fig. 5 is the electrode column structural profile schematic diagram of the band conical surface of the present invention
Fig. 6 is Teflon (Teflon) the ring structure generalized section of the band conical surface of the present invention
Fig. 7 is Teflon (Teflon) the gasket structure generalized section of the band conical surface of the present invention
Fig. 8 is an explosion-proof valve body structure generalized section of the present invention
Embodiment
Dynamic lithium battery top cover electrode column is tightly connected and the manufacture method of explosion-protection equipment:
Each part makes respectively.
Along circumference laser welding 13, laser welding is in stamping top cover spare 1 the explosion-proof valve body 12 of stainless steel.
Teflon (Teflon) sealing ring 5 of the band conical surface is loaded on stamping top cover spare 1, the electrode column 6 of the band conical surface passes Teflon (Teflon) sealing ring 5 of the band conical surface, again successively will be with Teflon (Teflon) seal washer 4 of the conical surface, plastic washer 3 is loaded on the electrode column 6 of the band conical surface, then with locking nut 2 lockings that scribble locking thread glue, by the conical surface effect of electrode column 6 of the band conical surface, Teflon (Teflon) sealing ring 5 of the band conical surface and plane and the hole that Teflon (Teflon) seal washer 4 is sealed in stamping top cover spare 1 closely.Assemble another electrode column with quadrat method.Use injection molding machine moulding 7 at last, make electrode column 6 splines of the band conical surface.
Teflon (Teflon) seal washer 10 of packing into successively at last, Teflon (Teflon) rupture pressure disc 11, Teflon (Teflon) seal washer 9 is locked with the explosion-proof lock screw 8 that scribbles locking thread glue.
Dynamic lithium battery top cover electrode column of the present invention is tightly connected and explosion-protection equipment, electrode column sealing property excellence, and corrosion-resistant, ageing-resistant, the high-low temperature resistant impact range is wide, and the explosion-protection equipment air-tightness is good, and is safe, and it is simple to make assembly technology, the quality yield height.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; perhaps directly that method design of the present invention and technical scheme is direct applied without improving, all in protection scope of the present invention.
Claims (10)
1. a dynamic lithium battery top cover electrode column is tightly connected and explosion-protection equipment, comprises stamping top cover spare 1, locking nut 2, plastic washer 3, Teflon (Teflon) seal washer 4 of the band conical surface, Teflon (Teflon) sealing ring 5 of the band conical surface, the electrode column 6 of the band conical surface, moulding 7, explosion-proof lock screw 8, Teflon (Teflon) seal washer 9, Teflon (Teflon) seal washer 10, Teflon (Teflon) rupture pressure disc 11, explosion-proof valve body 12, circumference laser welding 13.It is characterized in that: the electrode column 6 of the band conical surface, Teflon (Teflon) seal washer 4 of the band conical surface, Teflon (Teflon) sealing ring 5 of the band conical surface, utilize conical surface effect to make the Teflon sealing ring radially produce strain, when locking nut 2 lockings, reach the purpose of the positiver sealing of plane and hole.Explosion-protection equipment is chosen the Teflon of excellent properties as seal washer and rupture pressure disc, and being threaded compresses.
2. be tightly connected and explosion-protection equipment according to right 1 described dynamic lithium battery top cover electrode column, it is characterized in that: the electrode column 6 of the band conical surface.
3. be tightly connected and explosion-protection equipment according to right 1 described dynamic lithium battery top cover electrode column, it is characterized in that: Teflon (Teflon) sealing ring 5 of the band conical surface.
4. be tightly connected and explosion-protection equipment according to right 1 described dynamic lithium battery top cover electrode column, it is characterized in that: Teflon (Teflon) seal washer 4 of the band conical surface.
5. be tightly connected and explosion-protection equipment according to right 1 described dynamic lithium battery top cover electrode column, it is characterized in that: the Teflon of certain thickness circle (Teflon) rupture pressure disc 11.
6. be tightly connected and explosion-protection equipment according to right 1 described dynamic lithium battery top cover electrode column, it is characterized in that: the female explosion-proof valve body 12 of stainless steel.
7. be tightly connected and explosion-protection equipment according to right 1 described dynamic lithium battery top cover electrode column, it is characterized in that: Teflon (Teflon) seal washer 10 of the Teflon of certain thickness circle (Teflon) seal washer 9 and certain thickness circle.
8. be tightly connected and explosion-protection equipment according to right 1 described dynamic lithium battery top cover electrode column, it is characterized in that: the side opens relief hole but not the explosion-proof lock screw 8 of relief hole is opened on the top.
9. one kind is tightly connected and the manufacturing assembly method of explosion-protection equipment as right 1 described dynamic lithium battery top cover electrode column, and it is characterized in that: the technical process of described manufacture method is:
A). each part is made shaping respectively.
B). along circumference laser welding 13, laser welding is in stamping top cover spare 1 the explosion-proof valve body 12 of stainless steel.
C). Teflon (Teflon) sealing ring 5 of the band conical surface is loaded on stamping top cover spare 1 (having welded explosion-proof valve body 12), the electrode column 6 of the band conical surface is passed Teflon (Teflon) sealing ring 5 of the band conical surface, again successively will be with Teflon (Teflon) seal washer 4 of the conical surface, plastic washer 3 is loaded on the electrode column 6 of the band conical surface, fixes with certain torque take-up with the locking nut 2 that scribbles locking thread glue then.Assemble another electrode column with quadrat method.
D). on the electrode column with 7 to two band conical surfaces of injection molding machine moulding.
E). Teflon (Teflon) seal washer 10 of in explosion-proof valve body 12, packing into successively at last, Teflon (Teflon) rupture pressure disc 11, Teflon (Teflon) seal washer 9 is fixed with certain torque take-up with the explosion-proof lock screw 8 that scribbles locking thread glue.
10. being tightly connected and the manufacturing assembly method of explosion-protection equipment according to right 9 described dynamic lithium battery top cover electrode columns, it is characterized in that: at the b of described technical process) welding method described in the step is the welding of optical fiber high power laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102127719A CN102299273A (en) | 2010-06-28 | 2010-06-28 | Sealed connecting and explosion-proof device of electrode pole on top cover of powered lithium battery and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102127719A CN102299273A (en) | 2010-06-28 | 2010-06-28 | Sealed connecting and explosion-proof device of electrode pole on top cover of powered lithium battery and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102299273A true CN102299273A (en) | 2011-12-28 |
Family
ID=45359548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102127719A Pending CN102299273A (en) | 2010-06-28 | 2010-06-28 | Sealed connecting and explosion-proof device of electrode pole on top cover of powered lithium battery and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102299273A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466043A (en) * | 2014-12-19 | 2015-03-25 | 郑州市合力铜业有限公司 | Pole type lithium battery cover plate and pole type lithium battery using same |
| EP3021383A1 (en) | 2014-11-14 | 2016-05-18 | Saft Groupe S.A. | Method for sealing an opening of a battery container and container sealed by said method |
| CN107302064A (en) * | 2016-04-15 | 2017-10-27 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly |
| CN109585718A (en) * | 2017-09-28 | 2019-04-05 | 江苏津谊新能源科技有限公司 | A kind of battery sealing structure |
| CN112952243A (en) * | 2020-11-16 | 2021-06-11 | 江苏时代新能源科技有限公司 | End cover assembly, battery monomer, exhaust method, battery and electric device |
| CN113937368A (en) * | 2021-10-19 | 2022-01-14 | 东莞市智森科技有限公司 | Lithium battery cover plate assembling method and production system thereof |
| CN114079122A (en) * | 2022-01-07 | 2022-02-22 | 江苏海瑞电源有限公司 | New energy battery explosion-proof valve with pressure beads |
| WO2022105140A1 (en) * | 2020-11-19 | 2022-05-27 | 常州瑞德丰精密技术有限公司 | Secondary battery top cover assembly and secondary battery |
| US12107301B1 (en) | 2023-06-08 | 2024-10-01 | Shenzhen Hithium Energy Storage Technology Co., Ltd | End cover assembly, energy storage device, and electric apparatus |
-
2010
- 2010-06-28 CN CN2010102127719A patent/CN102299273A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3021383A1 (en) | 2014-11-14 | 2016-05-18 | Saft Groupe S.A. | Method for sealing an opening of a battery container and container sealed by said method |
| CN104466043A (en) * | 2014-12-19 | 2015-03-25 | 郑州市合力铜业有限公司 | Pole type lithium battery cover plate and pole type lithium battery using same |
| CN107302064B (en) * | 2016-04-15 | 2023-07-04 | 宁德时代新能源科技股份有限公司 | Battery top cover assembly |
| CN107302064A (en) * | 2016-04-15 | 2017-10-27 | 宁德时代新能源科技股份有限公司 | Battery top cap subassembly |
| CN109585718A (en) * | 2017-09-28 | 2019-04-05 | 江苏津谊新能源科技有限公司 | A kind of battery sealing structure |
| CN112952243B (en) * | 2020-11-16 | 2023-03-28 | 江苏时代新能源科技有限公司 | End cover assembly, battery monomer, exhaust method, battery and electric device |
| CN112952243A (en) * | 2020-11-16 | 2021-06-11 | 江苏时代新能源科技有限公司 | End cover assembly, battery monomer, exhaust method, battery and electric device |
| US11705610B2 (en) | 2020-11-16 | 2023-07-18 | Jiangsu Contemporary Amperex Technology Limited | End cover assembly, battery cell, degassing method, battery, and electric apparatus |
| WO2022105140A1 (en) * | 2020-11-19 | 2022-05-27 | 常州瑞德丰精密技术有限公司 | Secondary battery top cover assembly and secondary battery |
| CN113937368A (en) * | 2021-10-19 | 2022-01-14 | 东莞市智森科技有限公司 | Lithium battery cover plate assembling method and production system thereof |
| CN113937368B (en) * | 2021-10-19 | 2024-01-09 | 东莞市智森科技有限公司 | Lithium battery cover plate assembling method and production system thereof |
| CN114079122A (en) * | 2022-01-07 | 2022-02-22 | 江苏海瑞电源有限公司 | New energy battery explosion-proof valve with pressure beads |
| US12107301B1 (en) | 2023-06-08 | 2024-10-01 | Shenzhen Hithium Energy Storage Technology Co., Ltd | End cover assembly, energy storage device, and electric apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102299273A (en) | Sealed connecting and explosion-proof device of electrode pole on top cover of powered lithium battery and manufacturing method thereof | |
| US20200136111A1 (en) | Composite explosion-proof valve, cover plate assembly, and battery | |
| CN201689923U (en) | Top cover of rechargeable battery packaging shell | |
| CN106025145A (en) | Flexible package lithium battery two-seal liquor-drainage exhaust packaging technology | |
| CN101944576A (en) | Post seal structure for lithium ion battery | |
| CN106340600A (en) | Power type cylindrical lithium ion battery explosion-proof cap | |
| CN102299282A (en) | Explosion-proof device of power lithium battery top cover and manufacturing method thereof | |
| CN101814589A (en) | Explosion-proof cap of micro-resistance cylindrical lithium ion battery | |
| CN202004068U (en) | Battery explosion-proof device | |
| CN106784428A (en) | A kind of anti-explosion battery shell | |
| CN202308122U (en) | Aluminum membrane type explosion-proof valve of high-capacity lithium ion battery | |
| CN103682184A (en) | Power battery cover plate | |
| US20110097612A1 (en) | Secondary battery end cap assembly | |
| CN204045660U (en) | A kind of lithium battery anti-explosion valve structure | |
| CN104006179B (en) | A kind of manufacturing process of sealing configuration of four sealing aviation fuel valves | |
| CN208284579U (en) | Aluminum-shell battery | |
| CN202977550U (en) | Sealing element for lithium ion battery capacitor | |
| CN207489929U (en) | Cover plate of power battery and the power battery using the cover board | |
| CN105405992A (en) | Production method of explosion-proof structure of battery cover plate | |
| CN207265153U (en) | A kind of lithium battery liquid injection port is covered with integral type | |
| CN201946658U (en) | Power battery anti-explosion valve and power battery | |
| KR101464539B1 (en) | Lithium battery with safety | |
| EP2375470A1 (en) | Secondary battery end cap assembly | |
| CN203038988U (en) | Upper cover of high-capacity square metal casing battery | |
| CN201741737U (en) | Anti-explosion device of batteries |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |