发明授权
- 专利标题： Negative electrode for lithium ion secondary battery and method for producing the negative electrode
- 专利标题（中）： 锂离子二次电池用负极及其制造方法
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申请号： US11473149申请日： 2006-06-23
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公开(公告)号： US07767341B2公开(公告)日： 2010-08-03
- 发明人: Yasutaka Kogetsu , Kazuyoshi Honda , Yuuko Ogawa
- 申请人： Yasutaka Kogetsu , Kazuyoshi Honda , Yuuko Ogawa
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2005-184300 20050624
- 主分类号： H01M4/58
- IPC分类号： H01M4/58 ; C01B21/068 ; C01B21/06
摘要：
A negative electrode for a lithium ion secondary battery including a current collector and an active material layer carried on the current collector, wherein the active material layer includes an active material and no binder, the active material contains silicon and nitrogen, and the active material layer has a larger nitrogen ratio on a side of a first face which is in contact with the current collector than on a side of a second face which is not in contact with the current collector.
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