发明名称 |
Elektrodenmaterial aus Kohlenstoff für Sekundärbatterie und Verfahren zu seiner Herstellung |
摘要 |
A carbonaceous electrode having improved capacities for doping and dedoping of a cell active substance, such as lithium, and suitable for a non-aqueous solvent-type secondary battery, is constituted by a carbonaceous material having a pore volume of at least 0.55 ml/g of pores having a pore diameter of at most 5 mu m as measured by mercury injection method, a potassium content of at most 0.5 wt. % as measured by fluorescent X-ray analysis, and a specific surface area of at most 100 m<2>/g as measured by nitrogen adsorption BET method. The carbonaceous material is advantageous produced by carbonizing a carbon precursor of plant origin having a potassium content of at most 0.5 wt. % as measured by fluorescent X-ray analysis, in contact with a stream of an inert gas optionally containing a halogen gas at a temperature of 700 - 1500 <o>C. <IMAGE> |
申请公布号 |
DE69717550(T2) |
申请公布日期 |
2003.08.14 |
申请号 |
DE1997617550T |
申请日期 |
1997.06.12 |
申请人 |
KUREHA KAGAKU KOGYO K.K., TOKIO/TOKYO |
发明人 |
SONOBE, NAOHIRO;MASUKO, JIRO;SHIBATA, FUMIO |
分类号 |
C01B31/02;H01M4/587;H01M10/05;H01M10/0525;H01M10/0566 |
主分类号 |
C01B31/02 |
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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