发明名称 |
CARBON MATERIAL FOR BATTERY AND BATTERY CONTAINING THE CARBON MATERIAL |
摘要 |
The present invention relates to graphite powder and to a battery using it as a negative electrode material, the powder having a specific surface area of not more than 3 m<2>/g, an aspect ratio of not more than 6, and a tapping bulk density of not less than 0.8 g/cm<3>; or a tapping bulk density of not less than 0.8 g/cm<3> and an oxidation initiation temperature of not less than 600 DEG C; or a specific surface area of not more than 3 m<2>/g and a tapping bulk density of not less than 0.8 g/cm<3>, a specific electrical resistance of the powder not more than 0.06 OMEGA cm in the specified condition. The battery obtained thus has a large discharge capacity, good cycle property and high charge and discharge efficiency. <IMAGE> |
申请公布号 |
CA2694838(A1) |
申请公布日期 |
2000.04.20 |
申请号 |
CA19992694838 |
申请日期 |
1999.10.12 |
申请人 |
SHOWA DENKO K.K. |
发明人 |
NISHIMURA, KUNIO;SUDOH, AKINORI;SOTOWA, CHIAKI |
分类号 |
H01M4/133;H01M4/02;H01M4/1393;H01M4/58;H01M4/587 |
主分类号 |
H01M4/133 |
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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