- 专利标题: ELECTRODE MATERIAL, METHOD FOR MANUFACTURING ELECTRODE MATERIAL, ELECTRODE, AND LITHIUM ION BATTERY
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申请号: EP19195344.7申请日: 2019-09-04
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公开(公告)号: EP3706217A1公开(公告)日: 2020-09-09
- 发明人: OONO, Kouji , OSHITARI, Satoru , NOZOE, Tsutomu , OYAMA, Masataka
- 申请人: Sumitomo Osaka Cement Co., Ltd.
- 申请人地址: 6-28, Rokubancho Chiyoda-ku Tokyo 102-8465 JP
- 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: 6-28, Rokubancho Chiyoda-ku Tokyo 102-8465 JP
- 代理机构: Müller-Boré & Partner Patentanwälte PartG mbB
- 优先权: JP2019041752 20190307
- 主分类号: H01M4/62
- IPC分类号: H01M4/62 ; H01M4/36 ; H01M4/58 ; H01M4/1397 ; H01M4/136 ; H01M10/0525
摘要:
An electrode material including a carbonaceous-coated electrode active material having primary particles of the electrode active material and 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 a specific surface area, which is obtained using a nitrogen adsorption method, is 4 m 2 /g or more and 40 m 2 /g or less, a volume of micropores per unit mass is 0.05 cm 3 /g or more and 0.3 cm 3 /g or less, and an average micropore diameter, which is obtained from the volume of the micropores per unit mass and the specific surface area, is 26 nm or more and 90 nm or less.
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