Coke powder heat-treated with boron oxide using an Acheson furnace for lithium battery anodes

被引:14
作者
Hamada, T [1 ]
Suzuki, K [1 ]
Kohno, T [1 ]
Sugiura, T [1 ]
机构
[1] Nippon Steel Corp Ltd, Adv Technol Res Lab, Chiba 2938511, Japan
关键词
coke; annealing; electrochemical properties;
D O I
10.1016/S0008-6223(02)00122-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Coal tar pitch-based coke power was heat-treated kith B2O3 Using an Acheson furnace. The heat-treated coke powder contained nitrogen and oxygen probably derived from BN and B2O3, respectively. and exhibited a large irreversible capacity in the first charge-discharge (lithium dope-undope) cycle. The large irreversible capacity was decreased not by the decomposition of BN or B2O3 but drastically by the increase of dissolved boron concentration. The discharge capacity also correlated well with the concentration of dissolved boron. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2317 / 2322
页数:6
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