Title:
角形電池
Document Type and Number:
Japanese Patent JP4706186
Kind Code:
B2
Abstract:
To provide a square battery as a lithium ion battery for a power source of an electric automobile capable of securing low resistance of a current collecting structure.
The square battery houses an almost elliptic electrode plate group having a flat part formed by winding a cathode plate, an anode plate, and a separator. A non-painted part is formed at one end part of the electrode group, and the non-painted part is separated into two by the long axis of the electrode group, and at least one side of the separated non-painted part is welded to a neighboring long side face of the battery case.
COPYRIGHT: (C)2006,JPO&NCIPI
Inventors:
Masato Hase
Application Number:
JP2004142040A
Publication Date:
June 22, 2011
Filing Date:
May 12, 2004
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01M2/26; H01M10/04; H01M6/02
Domestic Patent References:
| JP2001068089A | ||||
| JP2003249423A | ||||
| JP2003123846A | ||||
| JP2001052759A |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii