发明申请
- 专利标题： NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME
- 专利标题（中）： 非电解电解质二次电池及其制造方法
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申请号： US12518513申请日： 2007-12-26
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公开(公告)号： US20100104944A1公开(公告)日： 2010-04-29
- 发明人: Motoharu Saito , Hideyuki Koga , Katsutoshi Takeda , Hiroshi Sawada , Masahisa Fujimoto
- 申请人： Motoharu Saito , Hideyuki Koga , Katsutoshi Takeda , Hiroshi Sawada , Masahisa Fujimoto
- 申请人地址： JP MORIGUCHI-SHI
- 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 MORIGUCHI-SHI
- 优先权： JP2006-351455 20061227
- 国际申请： PCT/JP2007/075023 WO 20071226
- 主分类号： H01M4/52
- IPC分类号： H01M4/52 ; H01M4/58 ; H01M4/56 ; H01M10/04
摘要：
A mixed positive electrode active material is used. The mixed positive electrode active material is obtained by mixing a layered oxide whose initial charge-discharge efficiency when lithium metal is used for a counter electrode is less than 100% (hereinafter referred to as a first layered oxide) and a layered oxide whose initial charge-discharge efficiency is 100% or more (hereinafter referred to as a second layered oxide). Examples of the first layered oxide include Li1+aMnxCoyNizO2. A sodium oxide such as LiANaBMnXCoYNiZO2 other than a layered compound from which lithium is previously extracted by acid treatment or the like can be used as the second layered oxide whose initial charge-discharge efficiency is 100% or more. A layered oxide obtained by replacing (ion exchange) sodium in the foregoing LiANaBMnXCoYNiZO2 with lithium can be also used as the second layered oxide.