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1. CN111900276 - Battery shell and battery

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Office
China
Application Number 202010885446.2
Application Date 28.08.2020
Publication Number 111900276
Publication Date 06.11.2020
Publication Kind A
IPC
H01M 2/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
02Cases, jackets or wrappings
04Lids or covers
H01M 2/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
12Vent plugs or other mechanical arrangements for facilitating escape of gases
H01M 2/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
02Cases, jackets or wrappings
08Sealing materials
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
CPC
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 2220/30
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2220Batteries for particular applications
30Batteries in portable systems, e.g. mobile phone, laptop
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants ZHUHAI COSMX BATTERY CO., LTD.
珠海冠宇电池股份有限公司
Inventors WANG YONGWANG
王永旺
ZENG YUXIANG
曾玉祥
Agents 北京银龙知识产权代理有限公司 11243
北京银龙知识产权代理有限公司 11243
Title
(EN) Battery shell and battery
(ZH) 一种电池外壳及电池
front page image
Abstract
(EN) The invention provides a battery shell and a battery, the battery shell comprises a first cover body, a second cover body, a sealing piece and a shell body, the second cover body is welded with the shell body, and the first cover body is bonded with the second cover body through the sealing piece so as to seal the shell body; wherein the bonding force between the first cover body and the second cover body is smaller than a first pressure, and the first pressure is the pressure borne by the battery shell during explosion. When the battery explodes, the bonding layer between the first cover bodyand the second cover body can be broken through to release gas generated in the battery shell, so that explosion caused by continuous rise of the internal pressure of the battery shell is avoided.
(ZH) 本发明提供一种电池外壳及电池，其中，所述电池外壳包括：第一盖体、第二盖体、密封件和壳体，所述第二盖体与所述壳体焊接，所述第一盖体通过所述密封件与所述第二盖体粘接，以密封所述壳体；其中，所述第一盖体和所述第二盖体之间的粘接力小于第一压力，所述第一压力为所述电池外壳爆炸时所承受的压力。在电池发生爆炸时，可冲破第一盖体和第二盖体之间的粘接层，以释放所述电池外壳内部产生的气体，避免所述电池外壳内压继续升高而发生爆炸。
Related patent documents
WO/2022/042574
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