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LiCo_xNi_(0.5-x)Mn_(1.5)O_(3.95)F_(0.05):5V锂离子电池正极材料 被引量：2

LiCo_xNi_(0.5-x)Mn_(1.5)O_(3.95)F_(0.05):5V Li-ion battery cathode material
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摘要 为改善锂锰氧化物的电化学特性,采用溶胶 凝胶法合成了钴、镍、氟复合掺杂型锂离子电池正极材料LiCoxNi0 5-xMn1 5O3 95F0 05(x=0,0 1,0 25)。XRD分析表明:该复合氧化物仍为尖晶石结构;电化学性能测试结果显示:当x取值0 1时,在3 5～5 1V电压范围内以0 12mA/cm2的电流密度进行充放电循环时,LiCo0.1Ni0.4Mn1.5O3.95F0.05材料具有较好的循环特性,初始放电容量可达139mAh/g。 In order to improve the electrochemical properties of lithium manganese oxide,a series of Li-ion batteries multi-doped(cobalt,nickel and fluorine)cathode materials LiCo_xNi_(0.5-x)Mn_(1.5)O_(3.95)F_(0.05) materials used for Li-ion batteries were studied. Test results showed that the synthesized materials had the type of spinel. The electrochemical properties of these materials were investigated from 3.5～5.1?V. When x was 0.1,the charge and discharge current densities were 0.12?mA/cm^2,the LiCo_(0.1)Ni_(0.4)Mn_(1.5)O_(3.95)F_(0.05) electrode delivered the initial capacity of 139?mAh/g and with excellent cycle ability.
作者 李文 苏光耀 李朝晖 肖启振
机构地区 湘潭大学化学学院
出处 《电池》 CAS CSCD 北大核心 2004年第1期35-37,共3页 Battery Bimonthly
基金 湖南省科技厅重点资助项目(2001.009)
关键词 锂离子电池 正极材料 溶胶-凝胶法 电化学特性 LiCoxNi0.5-xMn1.503.95F0.05:5V Li-ion battery cathode material doping spinel electrochemical characteristics
分类号 TM912.9 [电气工程—电力电子与电力传动]
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共引文献4

同被引文献30

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电池
2004年 第1期

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