CN102044715A - Explosion-proof equipment of lithium battery - Google Patents
Explosion-proof equipment of lithium battery Download PDFInfo
- Publication number
- CN102044715A CN102044715A CN2009102017129A CN200910201712A CN102044715A CN 102044715 A CN102044715 A CN 102044715A CN 2009102017129 A CN2009102017129 A CN 2009102017129A CN 200910201712 A CN200910201712 A CN 200910201712A CN 102044715 A CN102044715 A CN 102044715A
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- China
- Prior art keywords
- explosion
- lithium battery
- rubber sheet
- proof equipment
- proof
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- 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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- 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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- Secondary Cells (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses an explosion-proof equipment of a lithium battery, comprising a lithium battery shell, a positive electrode, a negative electrode and a rubber sheet. The explosion-proof equipment is characterized in that: an air vent arranged on the lithium battery shell is covered by and fixed with the rubber sheet, and the thickness of the rubber sheet is 0.5-5mm. By adopting the rubber sheet as an explosion-proof valve, an injecting hole used for injecting electrolyte and nitrogen into the battery is not required, and the injecting hole and the explosion-proof valve are integrated as a whole, thereby having the advantages of simple structure and low cost, and being convenient to process and easy to operate. When the explosion-proof equipment is used, electrolyte and nitrogen are injected into the battery by a needle tube through the rubber sheet; after the needle head is pulled out, the needle hole is automatically closed due to elasticity of the rubber sheet, thereby realizing no leakage of electrolyte and nitrogen and normal work of the lithium battery. The explosion-proof equipment is suitable for lithium batteries with different shapes and thicknesses.
Description
Technical field
Lithium battery explosion-protection equipment of the present invention relates to the technical field of lithium battery, is applied to the explosion-proof of lithium battery.
Background technology
Lithium battery is widely used on the various products owing to have advantages such as in light weight, that volume is little, capacitance is big, charging rate is very fast, comprises in household electrical appliance and the electric motor car.
But the phenomenon of generating heat, burning even blasting in use usually can appear in lithium battery, the life security that has directly endangered people, and the lighter influences main frame and uses, and weight person also can burn main frame and cause fire.It is reported that a lot of family fire accidents that cause because of lithium battery heating burning have taken place in recent years in Japan.
Take place for fear of such danger, on the basis of air-filled pore, set up explosion-protection equipment in addition, because the complex structure of explosion-protection equipment, difficulty of processing is big, the corresponding production cost that increased; Also have plenty of and be processed into the pit thinner on the employing housing on the blast resistance construction than original housing, be directly used in explosion-proof, or be processed into through hole, adopt the mode of welding on through hole, to add a cover metal forming, as explosion-proof and sealing, because the specification requirement height that housing and metal forming weld together, so the welding index is difficult to control, explosion-proof effect is extremely unstable.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, explore a kind of structure that topping up, air-filled pore and explosion-protection equipment are merged, design that a kind of technology is simple, cost is low, easy to operate lithium battery explosion-protection equipment.Its technology is achieved in that the structure that comprises lithium battery housing, positive electrode, negative electrode, sheet rubber, it is characterized in that: the lithium battery housing is provided with air vent hole; Cover on the air vent hole and be fixed with sheet rubber, the thickness of sheet rubber is 0.5-5mm.Obvious advantage and the effect of implementing this technology are: owing to adopt sheet rubber as explosion-proof valve, need not to offer in addition liquid injection hole and inject electrolyte and nitrogen in battery, liquid injection hole and explosion-proof valve are integrated, simple in structure, cost is low, and is easy to process simple to operate; During use, only need to pass sheet rubber and inwardly inject electrolyte and nitrogen with needle tubing, extract syringe needle after, utilize sheet rubber enclosed elastic pin hole, reach electrolyte and nitrogen does not leak, the lithium battery operate as normal; And when cell internal pressure excessive, when overloading, the aperture that gas stays in the time of just can strutting fluid injection outwards discharges, and thickness that can be by changing sheet rubber and the syringe needle size that is used for injecting electrolyte are controlled the discharge capacity of lithium battery interior pressure, are applicable to the lithium battery of different shape and different-thickness.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of the embodiment of the invention;
Wherein: 1-positive electrode, 2-sheet rubber, 3-air vent hole, 4-negative electrode, 5-lithium battery housing;
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
See accompanying drawing 1, lithium battery housing (5) top is provided with positive electrode (1), negative electrode (4).Be provided with air vent hole (3) between positive electrode (1) and the negative electrode (4), be fixed with sheet rubber (2) on the air vent hole (3).
See accompanying drawing 1, lithium battery housing (5) top is provided with positive electrode (1), negative electrode (4).Be provided with air vent hole (3) between positive electrode (1) and the negative electrode (4), be fixed with sheet rubber (2) on the air vent hole (3).
During use, irritate the needle tubing that liquid is arranged, pass sheet rubber (2) by syringe needle and in lithium battery housing (5), inject electrolyte and nitrogen, after extracting syringe needle, utilize sheet rubber (2) enclosed elastic pin hole, reach electrolyte and nitrogen does not leak, the lithium battery operate as normal.
When lithium battery interior pressure surpassed withstand voltage setting, gas carried out pressure release through air vent hole (3) by the pin hole on the sheet rubber (2), makes lithium battery interior pressure be no more than withstand voltage setting.The blast that has effectively prevented lithium battery to cause owing to internal pressure is excessive.
Claims (2)
1. lithium battery explosion-protection equipment comprises the structure of lithium battery housing, positive electrode, negative electrode, sheet rubber, and it is characterized in that: the lithium battery housing is provided with air vent hole; Cover and be fixed with sheet rubber on the air vent hole.
2. simple and easy lithium battery explosion-protection equipment according to claim 1 is characterized in that: the thickness of described sheet rubber is 0.5-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102017129A CN102044715A (en) | 2009-10-22 | 2009-10-22 | Explosion-proof equipment of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102017129A CN102044715A (en) | 2009-10-22 | 2009-10-22 | Explosion-proof equipment of lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102044715A true CN102044715A (en) | 2011-05-04 |
Family
ID=43910641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102017129A Pending CN102044715A (en) | 2009-10-22 | 2009-10-22 | Explosion-proof equipment of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102044715A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218200A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN107591509A (en) * | 2016-07-08 | 2018-01-16 | 朱建浩 | Explosion-proof equipment of lithium battery |
| CN108604662A (en) * | 2016-08-26 | 2018-09-28 | 株式会社Lg化学 | The method of secondary cell and electrolyte for supplementing secondary cell |
| US10319970B2 (en) | 2014-07-30 | 2019-06-11 | Zhejiang Chilwee Chuangyuan Industry Company Ltd. | Lithium-ion battery and electric vehicle utilizing the same |
| CN111201633A (en) * | 2017-12-14 | 2020-05-26 | 株式会社Lg化学 | Method for manufacturing battery module |
| CN113178667A (en) * | 2020-01-24 | 2021-07-27 | 本田技研工业株式会社 | Battery monomer |
-
2009
- 2009-10-22 CN CN2009102017129A patent/CN102044715A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218200A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN104218200B (en) * | 2014-07-30 | 2017-11-28 | 浙江超威创元实业有限公司 | A kind of lithium battery with fireproof anti-explosion device and the electric car using the battery |
| US10319970B2 (en) | 2014-07-30 | 2019-06-11 | Zhejiang Chilwee Chuangyuan Industry Company Ltd. | Lithium-ion battery and electric vehicle utilizing the same |
| CN107591509A (en) * | 2016-07-08 | 2018-01-16 | 朱建浩 | Explosion-proof equipment of lithium battery |
| CN108604662A (en) * | 2016-08-26 | 2018-09-28 | 株式会社Lg化学 | The method of secondary cell and electrolyte for supplementing secondary cell |
| JP2019503058A (en) * | 2016-08-26 | 2019-01-31 | エルジー・ケム・リミテッド | Secondary battery and method for replenishing electrolyte of secondary battery |
| US10944084B2 (en) | 2016-08-26 | 2021-03-09 | Lg Chem, Ltd. | Secondary battery and method for supplementing electrolyte of secondary battery |
| CN108604662B (en) * | 2016-08-26 | 2021-03-16 | 株式会社Lg化学 | Secondary battery and method for replenishing electrolyte of secondary battery |
| CN111201633A (en) * | 2017-12-14 | 2020-05-26 | 株式会社Lg化学 | Method for manufacturing battery module |
| US11342629B2 (en) | 2017-12-14 | 2022-05-24 | Lg Chem, Ltd. | Method for manufacturing battery module |
| CN113178667A (en) * | 2020-01-24 | 2021-07-27 | 本田技研工业株式会社 | Battery monomer |
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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: 20110504 |