- 专利标题: Negative electrode plate and battery
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申请号: US16389760申请日: 2019-04-19
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公开(公告)号: US11177477B2公开(公告)日: 2021-11-16
- 发明人: Meng Kang , Tianquan Peng , Yuliang Shen , Libing He
- 申请人: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
- 申请人地址: CN Ningde
- 专利权人: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
- 当前专利权人: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
- 当前专利权人地址: CN Ningde
- 代理机构: Morgan, Lewis & Bockius LLP
- 优先权: CN201810398055.0 20180428
- 主分类号: H01M4/587
- IPC分类号: H01M4/587 ; H01M4/133 ; H01M10/0525 ; H01M4/02
摘要:
The present disclosure provides a negative electrode plate and a battery, the negative electrode plate comprises a negative current collector and a negative film, the negative film is provided on at least one surface of the negative current collector and comprises a negative active material. The negative active material comprises graphite, and an OI value of the negative film represented by VOI and a pressing density of the negative film represented by PD satisfy a relationship: 0.7≤(80/VOI+43/PD)×PD/VOI≤21.5, where a unit of the pressing density of the negative film represented by PD is g/cm3. The battery of the present disclosure can have the characteristics of fast charging speed, high energy density, good safety performance and long cycle life at the same time.
公开/授权文献
- US20190334172A1 NEGATIVE ELECTRODE PLATE AND BATTERY 公开/授权日:2019-10-31
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