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1. WO2011000267 - METHOD FOR MANUFACTURING CYLINDRICAL BATTERY CAPABLE OF IMPROVING BATTERY CAPACITY

Publication Number WO/2011/000267
Publication Date 06.01.2011
International Application No. PCT/CN2010/074081
International Filing Date 18.06.2010
IPC
H01M 2/02 2006.01
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
H01M 10/058 2010.01
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
058Construction or manufacture
CPC
H01M 10/049
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
049Processes for forming or storing electrodes in the battery container
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 2/046
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
0456characterised by the shape
046Disk-like lids for cylindrical batteries
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
  • 深圳市比克电池有限公司 SHENZHEN BAK BATTERY CO., LTD. [CN]/[CN] (AllExceptUS)
  • 任灿 REN, Can [CN]/[CN] (UsOnly)
  • 王春光 WANG, Chunguang [CN]/[CN] (UsOnly)
  • 陈保同 CHEN, Baotong [CN]/[CN] (UsOnly)
Inventors
  • 任灿 REN, Can
  • 王春光 WANG, Chunguang
  • 陈保同 CHEN, Baotong
Agents
  • 深圳鼎合诚知识产权代理有限公司 DHC LAW OFFICE
Priority Data
200910108534.529.06.2009CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR MANUFACTURING CYLINDRICAL BATTERY CAPABLE OF IMPROVING BATTERY CAPACITY
(FR) PROCÉDÉ DE FABRICATION DE BATTERIE CYLINDRIQUE CAPABLE D'AMÉLIORER LA CAPACITÉ DE BATTERIE
(ZH) 一种可提高电池容量的圆柱形电池制造方法
Abstract
(EN)
A method for manufacturing cylindrical battery capable of improving the battery capacity, includes following steps: increasing the height h1 of an electrode group (13) by △h and packing the electrode group (13) into a battery can (11); forming an annular groove (112) with height h2 at the open end of the battery can (11); connecting a combination cap (12) with height h3 with the electrode group (13) and placing the combination cap (12) above the annular groove (112) with height h2, then sealing the battery can (11); exerting force F2 to compress the annular groove (112) and combination cap (12) with total height h2+h3 by △h, so as to improve the battery capacity by increasing height of the electrode group (13) △h without changing battery standard height. The method of the invention reduces the height of the annular groove (112) by compression process, therefore increases the space holding the electrode group (13) within the battery.
(FR)
L'invention porte sur un procédé de fabrication de batterie cylindrique capable d'améliorer la capacité de batterie, qui comprend les étapes suivantes : augmentation de la hauteur h1 d'un groupe d'électrodes (13) par Δh et emballage du groupe d'électrodes (13) dans un boîtier de batterie (11) ; formation d'une rainure annulaire (112) ayant une hauteur h2 à l'extrémité ouverte du boîtier de batterie (11) ; raccordement d'un couvercle de combinaison (12) ayant une hauteur h3 au groupe d'électrodes (13) et placement du couvercle de combinaison (12) au-dessus de la rainure annulaire (112) ayant une hauteur h2, puis scellement du boîtier de batterie (11) ; application d'une force F2 pour comprimer la rainure annulaire (112) et le couvercle de combinaison (12) ayant une hauteur totale h2 + h3 par Δh, de façon à améliorer la capacité de batterie par augmentation de la hauteur du groupe d'électrodes (13) par Δh sans modifier la hauteur standard de la batterie. Le procédé de l'invention réduit la hauteur de la rainure annulaire (112) par un processus de compression, augmentant ainsi l'espace contenant le groupe d'électrodes (13) dans la batterie.
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