发明名称 |
Negative electrode for lithium secondary cell and lithium secondary cell using the same |
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. |
申请公布号 |
US8273479(B2) |
申请公布日期 |
2012.09.25 |
申请号 |
US20090597697 |
申请日期 |
2009.10.26 |
申请人 |
HASEGAWA MASAKI;UGAJI MASAYA;OHARA KEISUKE;MATSUMOTO HITOSHI;PANASONIC CORPORATION |
发明人 |
HASEGAWA MASAKI;UGAJI MASAYA;OHARA KEISUKE;MATSUMOTO HITOSHI |
分类号 |
H01M4/13;H01M4/02;H01M4/04;H01M4/131;H01M4/134;H01M4/1391;H01M4/1395;H01M4/48;H01M4/58 |
主分类号 |
H01M4/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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