| 发明名称 |
GRAPHITE MATERIAL, CARBON MATERIAL FOR BATTERY ELECTRODE, AND BATTERY |
| 摘要 |
A graphite material having pores which, when 200 rectangular regions of 6 μm×8 μm are randomly selected in a surface image of the graphite material observed by a scanning electron microscope, in the surface of the graphite material appearing in the regions, a pore appearing on the surface and having an aperture in a shape having a diameter of 15 nm to 200 nm, a circularity degree of 0.75 to 1.0 and a major axis/minor axis ratio of 1.0 to 1.5 is visible in two regions or more. Also disclosed is a carbon material for battery electrodes, a paste for electrodes, an electrode and a lithium ion secondary battery including the graphite material. |
| 申请公布号 |
US2014335428(A1) |
申请公布日期 |
2014.11.13 |
| 申请号 |
US201214353092 |
申请日期 |
2012.10.19 |
| 申请人 |
SHOWA DENKO K.K. |
发明人 |
Wakizaka Yasuaki;Kamijou Yuuichi;Takeuchi Masataka;Fukai Takayuki;Sotowa Chiaki;Sudoh Akinori;Tanaka Masako |
| 分类号 |
H01M4/587;H01M10/0525;H01M10/0569 |
主分类号 |
H01M4/587 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A graphite material having pores, wherein an aperture of the pores is in a shape having a diameter of 15 nm to 200 nm, a circularity degree of 0.75 to 1.0 and a major axis/minor axis ratio of 1.0 to 1.5. |
| 地址 |
Minato-ku, Tokyo JP |
