发明申请
US20100119948A1 NEGATIVE ELECTRODE FOR LITHIUM SECONDARY CELL, LITHIUM SECONDARY CELL USING THE SAME, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY CELL
失效
用于锂二次电池的负电极，使用该二次电池的锂二次电池及其制造用于锂二次电池的负极的方法
- 专利标题： NEGATIVE ELECTRODE FOR LITHIUM SECONDARY CELL, LITHIUM SECONDARY CELL USING THE SAME, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY CELL
- 专利标题（中）： 用于锂二次电池的负电极，使用该二次电池的锂二次电池及其制造用于锂二次电池的负极的方法
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申请号： US12597697申请日： 2008-04-11
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公开(公告)号： US20100119948A1公开(公告)日： 2010-05-13
- 发明人: Masaki Hasegawa , Masaya Ugaji , Keisuke Ohara , Hitoshi Matsumoto
- 申请人： Masaki Hasegawa , Masaya Ugaji , Keisuke Ohara , Hitoshi Matsumoto
- 优先权： JP2007-119352 20070427
- 国际申请： PCT/JP2008/000960 WO 20080411
- 主分类号： H01M4/58
- IPC分类号： H01M4/58 ; B05D5/12
摘要：
A negative electrode for a lithium secondary battery according to the present invention includes a current collector 12, and an active material layer 14 formed on the current collector 12. The active material layer 14 includes a plurality of negative-electrode active material members 16 disposed on the current collector 12. Each negative-electrode active material member 16 is oxide, including a first region 18 of a relatively high oxygen concentration and a plurality of second regions 20 having an oxygen concentration which is lower than that of the first region 18. The first region 18 extends from a bottom face of each negative-electrode active material member 16 in a direction away from the surface of the current collector. The plurality of second regions 20 are alternately disposed on both sides of the first region 18.