Hard carbon/lithium composite anode materials for Li-ion batteries

被引：71
|
作者：
Sun, Hao [1 ]
He, Xiangming [1 ]
Ren, Jianguo [1 ]
Li, Jianjun [1 ]
Jiang, Changyin [1 ]
Wan, Chunrong [1 ]
机构：
[1] Tsing Hua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2007年 / 52卷 / 13期
关键词：
hard carbon; lithium foil; composite anode; initial irreversible capacity; Li-ion batteries;
D O I：
10.1016/j.electacta.2006.12.012
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Hard carbon/lithium composite anode electrode is prepared to reduce the initial irreversible capacity of hard carbon, which hinders practical application of hard carbon in lithium ion batteries, by introducing lithium into hard carbon. Lithium foil effectively compensates the irreversible capacity of hard carbon in the first cycle. A full cell using LiCoO2 cathode and the composite anode shows much higher initial coulombic efficiency than that of a cell using LiCoO2 cathode and hard carbon anode. This paves the way to reduce the large initial irreversible capacity of hard carbon. Besides that, this composite anode enables conductive polymer/sulfur composite cathode to be used in Li-ion batteries with non-lithiated anode materials. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4312 / 4316
页数：5
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