- 专利标题: Electrode material, method for manufacturing electrode material, electrode, and lithium ion battery
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申请号: US16364285申请日: 2019-03-26
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公开(公告)号: US11289690B2公开(公告)日: 2022-03-29
- 发明人: Kouji Oono , Satoru Oshitari , Masataka Oyama
- 申请人: SUMITOMO OSAKA CEMENT CO., LTD.
- 申请人地址: JP Tokyo
- 专利权人: SUMITOMO OSAKA CEMENT CO., LTD.
- 当前专利权人: SUMITOMO OSAKA CEMENT CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Greenblum & Bernstein, P.L.C.
- 优先权: JPJP2018-182511 20180927
- 主分类号: H01M4/131
- IPC分类号: H01M4/131 ; H01M4/04 ; H01M4/505 ; H01M4/525 ; H01M10/0525
摘要:
An electrode material including a carbonaceous-coated electrode active material having primary particles of an electrode active material, secondary particles that are aggregates of the primary particles, and a carbonaceous film that coats the primary particles of the electrode active material and the secondary particles that are the aggregates of the primary particles, in which, in the electrode material, when ten random 180 nm×180 nm views are observed using an electron microscope at a magnification of 100,000 times, the number of free carbon aggregates is three or less, and the number of protrusions twice or more as thick as the carbonaceous film is three or less.
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