发明申请
US20080044724A1 Sealed secondary battery having bottomed tubular casing, closure plate fixed to opening of the casing, and valve plate closing hole formed through the closure plate
审中-公开
密封二次电池具有底部管状外壳，固定在外壳开口的封闭板和通过封闭板形成的阀板关闭孔
- 专利标题： Sealed secondary battery having bottomed tubular casing, closure plate fixed to opening of the casing, and valve plate closing hole formed through the closure plate
- 专利标题（中）： 密封二次电池具有底部管状外壳，固定在外壳开口的封闭板和通过封闭板形成的阀板关闭孔
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申请号： US11729975申请日： 2007-03-30
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公开(公告)号： US20080044724A1公开(公告)日： 2008-02-21
- 发明人: Hiroyuki Inoue , Masahiro Hosoda , Takaaki Aoto
- 申请人： Hiroyuki Inoue , Masahiro Hosoda , Takaaki Aoto
- 申请人地址： JP Osaka
- 专利权人： SANYO ELECTRIC CO., LTD.
- 当前专利权人： SANYO ELECTRIC CO., LTD.
- 当前专利权人地址： JP Osaka
- 优先权： JP2006-099337 20060331
- 主分类号： H01M2/02
- IPC分类号： H01M2/02 ; H01M10/02 ; H01M2/14
摘要：
The aim is to provide a sealed secondary battery with an electrode body that is larger in volume and thus incapacity, without affecting the operability of a valve member and the battery hermeticity. To achieve the aim, the sealed secondary battery includes an electrode body, an external casing, a closure plate, and a valve member. The external casing is of a tubular shape having a bottom and an opening. The closure plate has a hole formed through a central portion thereof and is secured at a peripheral portion to the edge of the opening of the external casing. The valve member has a resilient portion and a plate portion. The plate portion is biased by the resilient portion against the closure plate to close off the hole. The closure plate is smaller in average thickness at portions opposite a main surface of the plate portion than at other portions.
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