发明名称 |
FINE GRAIN-FLAKED GRAPHITE COMPOSITE BODY, LITHIUM-ION SECONDARY BATTERY NEGATIVE ELECTRODE MATERIAL, MANUFACTURING METHOD FOR SAME, AND LITHIUM-ION SECONDARY BATTERY |
摘要 |
There is provided a method for producing a negative electrode material for lithium ion secondary batteries that is easily produced and is less likely to cause deterioration in charge and discharge cycle characteristics. A method for producing a negative electrode material for lithium ion secondary batteries, comprises steps of heating a raw material composition comprising resin-retained partially exfoliated graphite having a structure in which graphene is partially exfoliated and Si particles to dope the partially exfoliated graphite with the Si particles, the partially exfoliated graphite being obtained by pyrolyzing a resin in a composition in which the resin is fixed to graphite or primary exfoliated graphite, thereby exfoliating the graphite or primary exfoliated graphite while allowing part of the above resin to remain; providing a composition comprising the above partially exfoliated graphite doped with the Si particles, a binder resin, and a solvent; and shaping the above composition. |
申请公布号 |
EP2966714(A4) |
申请公布日期 |
2016.09.07 |
申请号 |
EP20140760126 |
申请日期 |
2014.02.25 |
申请人 |
SEKISUI CHEMICAL CO., LTD. |
发明人 |
NOZATO, SHOJI;NAKASUGA, AKIRA;FUJIWARA, AKIHIKO;YOSHITANI, HIROSHI;UEMATSU, YASUSHI;KOBARU, SHOTARO |
分类号 |
H01M4/587;H01M4/02;H01M4/133;H01M4/1393;H01M4/1395;H01M4/36;H01M4/38;H01M4/62 |
主分类号 |
H01M4/587 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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