A 3.9 V polyanion-type cathode material for Li-ion batteries

被引：2
|
作者：
Lei LIU
机构：
来源：
Progress in Natural Science:Materials International | 2011年 / 21卷 / 03期
关键词：
LiFeSO4F; polyanion cathode; Li-ion battery;
D O I：
暂无
中图分类号：
TM912 [蓄电池];
学科分类号：
0808 ;
摘要：
Monoclinic phase LiFeSO4F was synthesized by a simple fast solid state reaction from the mixture of FeSO4·7H2O and LiF pulverized by high energy ball milling.m-LiFeSO4F was confirmed by GITT measurement to be a 3.9 V polyanion-type cathode materials for Li-ion batteries.Its electrochemical activity can be enhanced by addition of carbon.A discharge capacity of 105 mA·h/g (70%of theoretical value) was achieved for a m-LiFeSO4F/CNT composite.Phase separation behavior during lithium extraction and insertion was observed by ex-situ XRD test.
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页码：211 / 215
页数：5
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