摘要
利用高温固相分段加热法合成锂锰氧正极材料LiMn0.9Mo0.1O2,并对其进行了常温充放电、循环伏安、交流阻抗、电镜扫描等电化学性能测试。在2.0～4.3V电压范围内,其首次充电容量为160mAh/g,放电容量为158mAh/g;经10次充放电循环后,其充电容量为156mAh/g,放电容量为155mAh/g(对极为锂片);经SEM检测,该正极材料主要为正交型锂锰氧化物。
The anode material LiMn0.9Mo0.1O2 was synthesized using high temperature solid-state method, and its electrochemistry capabilities (CD, CV, EIS, SEM test and so on) were tested. At C/10 rate, the first charge capacity was 160 mAh/g, and the first discharge capacity was 158 mAh/g at 25°C (vs Li metal, voltage window 2.0-4.3 V), and the last charge and discharge capacities were 156 mAh/g and 155 mAh/g. The synthesized material was mostly o-LiMnO2 and larded a few Li2Mn2O4.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2005年第5期687-688,691,共3页
Journal of Functional Materials
基金
国家自然科学基金资助项目(20376086)
博士点基金资助项目(20030533001)
关键词
锂锰氧正极材料
高温固相合成
循环伏安
交流阻抗
电镜扫描
Anodes
Charging (batteries)
Cyclic voltammetry
Electric discharges
Electric impedance
Electrochemistry
Lithium compounds
Scanning electron microscopy
Synthesis (chemical)
