- 专利标题： POSITIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY
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申请号： EP18878879.8申请日： 2018-11-20
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公开(公告)号： EP3678235A1公开(公告)日： 2020-07-08
- 发明人: KAGEURA Jun-ichi , KOBAYASHI Ryota
- 申请人： Sumitomo Chemical Company Limited , Tanaka Chemical Corporation
- 申请人地址： 27-1 Shinkawa 2-chome Chuo-ku Tokyo 104-8260 JP
- 专利权人： Sumitomo Chemical Company Limited,Tanaka Chemical Corporation
- 当前专利权人： Sumitomo Chemical Company Limited,Tanaka Chemical Corporation
- 当前专利权人地址： 27-1 Shinkawa 2-chome Chuo-ku Tokyo 104-8260 JP
- 代理机构： Vossius & Partner Patentanwälte Rechtsanwälte mbB
- 优先权： JP2017222627 20171120
- 国际公布： WO2019098384 20190523
- 主分类号： H01M4/525
- IPC分类号： H01M4/525 ; C01G53/00 ; H01M4/505
摘要：
A positive-electrode active material for a lithium secondary battery includes: a secondary particle in which a plurality of primary particles of a lithium composite metal oxide are aggregated, in which the secondary particle has a void formed therein, and a through-hole that connects the void to a surface of the secondary particle, and satisfies predetermined requirements (i) to (iii).
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