- 专利标题: NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
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申请号: US17257163申请日: 2019-03-18
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公开(公告)号: US20210194002A1公开(公告)日: 2021-06-24
- 发明人: Yuta Matsuo , Kaori Ishikawa , Daisuke Ito , Mamoru Kuramoto
- 申请人: Panasonic Intellectual Property Management Co., Ltd.
- 申请人地址: JP Osaka-shi, 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-shi, Osaka
- 优先权: JP2018-138937 20180725
- 国际申请: PCT/JP2019/011055 WO 20190318
- 主分类号: H01M4/587
- IPC分类号: H01M4/587 ; H01M10/0569 ; H01M4/38 ; H01M4/62 ; H01M4/133
摘要:
This negative electrode for a nonaqueous electrolyte secondary battery is configured such that a negative electrode mixture layer has: a first layer that is formed on a negative electrode collector and that contains a first carbonaceous active material, a Si-based active material, a polyacrylic acid or a salt thereof, and a fibrous carbon; and a second layer that is formed on the first layer and that contains a second carbonaceous active material which has a tap density higher than that of the first carbonaceous active material.
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