发明申请
- 专利标题: STACKED SECONDARY BATTERY
- 专利标题(中): 堆叠二次电池
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申请号: US13062641申请日: 2009-09-07
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公开(公告)号: US20110195298A1公开(公告)日: 2011-08-11
- 发明人: Takao Daidoji , Koichi Zama
- 申请人: Takao Daidoji , Koichi Zama
- 申请人地址: JP Kanagawa
- 专利权人: NEC ENERGY DEVICES, LTD.
- 当前专利权人: NEC ENERGY DEVICES, LTD.
- 当前专利权人地址: JP Kanagawa
- 优先权: JP2008-229293 20080908
- 国际申请: PCT/JP2009/004412 WO 20090907
- 主分类号: H01M10/02
- IPC分类号: H01M10/02 ; H01M2/02 ; H01M2/18 ; H01M10/36
摘要:
A stacked secondary battery having desirable characteristics against overcharging is provided.In the stacked secondary battery, either of a planar positive electrode or a planar negative electrode is contained in a pouch-shaped separator oriented such that the direction in which a positive lead terminal or a negative lead terminal is drawn out is aligned with a machine direction of the separator; a synthetic resin film is applied to the pouch-shaped separator across an edge of a joint area on both sides of the separator, the synthetic resin film having an adhesion strength higher than the stress caused by thermal contraction of the separator and having a softening point higher than that of the separator; and the positive electrode or the negative electrode that is contained in the pouch-shaped separator is stacked with a counter electrode that is not contained in the separator in an opposed manner to form a stacked battery element, which in turn is sealed in a film-like casing.
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