Battery module, method of fabricating the same, and vehicle...

Details Battery module, method of fabricating the same, and vehicle... Battery module, method of fabricating the same, and vehicle...

H - Electricity

01

M

H01M 2/02 (2006.01) H01M 2/10 (2006.01) H01M 2/18 (2006.01) H01M 2/22 (2006.01) H01M 10/04 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2645174

Each of battery cells (12) that constitute a battery module includes a flat-shaped rolled electrode body (30) formed by rolling a sheet-like anode collector (32) and a sheet-like cathode collector (34) along with a sheet-like separator, and a trailing edge (32E) of the sheet-like anode collector (32) and a trailing edge (34E) of the sheet-like cathode collector (34) are located at a position (30B) outside a portion of the rolled electrode body (30) which substantially receives a restraining load. The battery module, in which the restraining load is applied to the cells, achieves long service life while maintaining good output characteristics.

Selon la présente invention, chacun des éléments de batterie (12) composant un module de batterie comprend un corps d'électrode laminé plat (30) produit par laminage d'un collecteur anodique (32) de type film et d'un collecteur cathodique (34) de type film, avec un séparateur de type film, ainsi qu'un bord de fuite (32E) du collecteur anodique (32) de type film et un bord de fuite (34E) du collecteur cathodique (34) de type film, lesquels bords de fuite se trouvent à un emplacement (30B) situé à l'extérieur d'une partie du corps d'électrode laminé (30) qui reçoit essentiellement une charge de retenue. Le module de batterie dans lequel la charge de retenue est appliquée aux éléments offre une grande durée de vie en service, tout en conservant des caractéristiques de rendement satisfaisantes.

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