Title:
BATTERY AND FABRICATING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2010/124591
Kind Code:
A1
Abstract:
A battery comprises a case and a battery unit which is sealed in the case and has a positive electrode lead-out terminal and a negative electrode lead-out terminal. Said case comprises a substrate and a composite plate which both form cavities with openings opposite to each other. Each cavity accommodates one part of the battery unit. Said substrate and composite plate are connected and sealed on their circumferential edges, and then two cavities with openings opposite to each other are united to form a sealed cavity which accommodates the battery unit completely. A battery fabricating method comprises machining a substrate and a composite plate, forming cavities with openings opposite to each other respectively and forming together a sealed cavity which accommodates a battery unit completely. Each cavity accommodates one part of the battery unit. Said method enables that the extension in the machining is equally shared by the substrate and the composite plate and the strength of the case is improved. Using metal substrate not only inherits high explosion-proof safety performance of the soft package battery but also improves the mechanical strength of the case. The battery case is not easy to be punctured, and the mechanical safety of the battery in use and fabrication is greatly improved.
Inventors:
WANG WEIQIANG (CN)
WANG CHUNGUANG (CN)
REN CAN (CN)
CHEN BAOTONG (CN)
LIU MING (CN)
WANG CHUNGUANG (CN)
REN CAN (CN)
CHEN BAOTONG (CN)
LIU MING (CN)
Application Number:
PCT/CN2010/072102
Publication Date:
November 04, 2010
Filing Date:
April 23, 2010
Export Citation:
Assignee:
SHENZHEN BAK BATTERY CO LTD (CN)
WANG WEIQIANG (CN)
WANG CHUNGUANG (CN)
REN CAN (CN)
CHEN BAOTONG (CN)
LIU MING (CN)
WANG WEIQIANG (CN)
WANG CHUNGUANG (CN)
REN CAN (CN)
CHEN BAOTONG (CN)
LIU MING (CN)
International Classes:
H01M50/105; H01M50/119; H01M50/121; H01M50/124; H01M50/129; H01M50/131; H01M50/136; H01M50/55; H01M50/557
Domestic Patent References:
| WO2004045006A1 | 2004-05-27 |
Foreign References:
| CN201408814Y | 2010-02-17 | |||
| CN200950459Y | 2007-09-19 | |||
| CN1507667A | 2004-06-23 | |||
| CN1389938A | 2003-01-08 | |||
| US20080076023A1 | 2008-03-27 |
Attorney, Agent or Firm:
DHC LAW OFFICE (International Commercial Building Cross of Fuhua Road and Jintian Road, Futian Distric, Shenzhen Guangdong 8, CN)
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