发明授权
- 专利标题： Nonaqueous electrolyte secondary cell
- 专利标题（中）： 非水电解质二次电池
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申请号： US14343198申请日： 2012-09-14
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公开(公告)号： US09520588B2公开(公告)日： 2016-12-13
- 发明人: Yasunari Sugita , Kazuki Endo , Tatsuya Ishibashi , Masato Fujikawa
- 申请人： Yasunari Sugita , Kazuki Endo , Tatsuya Ishibashi , Masato Fujikawa
- 申请人地址： JP Osaka
- 专利权人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 当前专利权人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2011-200479 20110914
- 国际申请： PCT/JP2012/005889 WO 20120914
- 国际公布： WO2013/038701 WO 20130321
- 主分类号： H01M10/0587
- IPC分类号： H01M10/0587 ; H01M2/26 ; H01M4/70
摘要：
A nonaqueous electrolyte secondary battery includes: an electrode group including a positive electrode plate, a negative electrode plate, and a separator. The positive and negative electrode plates are wound with the separator interposed therebetween. The positive electrode plate includes a first current collector exposed portion where a portion of the positive electrode current collector corresponding to an outermost portion of the electrode group is exposed over a length of greater than or equal to one turn in a winding direction of the electrode group, and a second current collector exposed portion where a portion of the positive electrode current collector corresponding to a middle portion of the electrode group is exposed over a length of greater than or equal to one turn in the winding direction. A positive electrode lead is provided on the second current collector exposed portion so as to be connected to an external electrode.
公开/授权文献
- US20140302366A1 NONAQUEOUS ELECTROLYTE SECONDARY CELL 公开/授权日：2014-10-09
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