| 发明名称 |
GRAPHITE MATERIAL FOR NEGATIVE ELECTRODE OF LITHIUM-ION SECONDARY BATTERY, LITHIUM-ION SECONDARY BATTERY INCLUDING THE GRAPHITE MATERIAL, AND METHOD OF MANUFACTURING GRAPHITE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY |
| 摘要 |
A graphite material for a negative electrode of a lithium-ion secondary battery is provided. A ratio Lc(112)/Lc(006) defined as a ratio of expansion of graphene sheets to sheet displacement ranges from 0.08 to 0.11, both inclusive. A crystallite size Lc(006) calculated from a wide-angle X-ray diffraction line ranges from 30 nm to 40 nm, both inclusive. An average particle size ranges from 3 μm to 20 μm, both inclusive. |
| 申请公布号 |
US2015147657(A1) |
申请公布日期 |
2015.05.28 |
| 申请号 |
US201314411842 |
申请日期 |
2013.06.25 |
| 申请人 |
MT CARBON CO.,LTD. |
发明人 |
Yagishita Yohei;Yamaguchi Kohei;Katayama Miwa;Oda Wataru;Inami Akemi;Kubo Yoshiki;Okazaki Seiji;Sakamoto Akio |
| 分类号 |
H01M4/133;C01B31/04;H01M4/587 |
主分类号 |
H01M4/133 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A graphite material for a negative electrode of a lithium-ion secondary battery, wherein
a ratio Lc(112)/Lc(006) defined as a ratio of expansion of graphene sheets to sheet displacement ranges from 0.08 to 0.11, both inclusive, a crystallite size Lc(006) calculated from a wide-angle X-ray diffraction line ranges from 30 nm to 40 nm, both inclusive, and an average particle size ranges from 3 μm to 20 μm, both inclusive. |
| 地址 |
Tokyo JP |
