发明名称 |
MIXED CARBON MATERIAL AND NEGATIVE ELECTRODE FOR NONAQUEOUS RECHARGEABLE BATTERY |
摘要 |
A negative electrode material provided by the present invention capable of suppressing a decrease in charge acceptance and high temperature storage properties in an electrode with a high capacity and a high density is a mixed carbon material comprising carbon material A having cores of graphite powder with amorphous carbon and/or turbostratic carbon adhered to or coated on the surface of the cores and carbon material B which is graphite powder, the compressibility which is the density (g/cm 3 ) of the material when 1.00 grams of the material are packed into a cylindrical mold with an inner diameter of 15 mm and compressed by applying a pressing force of 8.7 kN and reducing the pressing force to 0.15 kN is 1.60 - 1.78 g/cm 3 for carbon material A and 1.75 - 1.85 g/cm 3 for carbon material B, the compressibility of carbon material A is less than the compressibility of carbon material B, and the mixing ratio (carbon material A/carbon material B) is 1 - 9 as a mass ratio. |
申请公布号 |
KR20110042316(A) |
申请公布日期 |
2011.04.26 |
申请号 |
KR20117003590 |
申请日期 |
2009.07.02 |
申请人 |
CHUO DENKI KOGYO CO., LTD. |
发明人 |
YAMAMOTO HIROSHI;NAGATA TATSUO;FUJIWARA TOORU |
分类号 |
H01M4/583;C01B31/00;H01M10/05 |
主分类号 |
H01M4/583 |
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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