摘要
研究了纯尖晶石锂锰氧化物和掺铬尖晶石锂锰氧化物粉末微电极的循环伏安曲线和交流阻抗谱图,结果表明;掺铬样品循环稳定性明显增加,但它的氧化还原峰的位置发生正移,峰形宽化,两步嵌脱锂的量也由相等变为不等,反应电阻增加。
CV and EIS of LiMn2O4 and LiCr0.16Mn1.84O4 were studied by using a powder microelectrodes. It was seen that Comparing with pure spinel lithium maganese oxides, the cycling stability of Crdoped lithium maganese oxides increased, the two redox peaks shift toward higher potentials and became wider. For Crdoped lithium maganese oxide, the twostage redox amount of lithium was unequal and the chargetransfer resistance increased.
出处
《中国锰业》
2003年第1期7-9,共3页
China Manganese Industry
基金
广东省自然科学基金资助课题(011443)
华南师范大学学生课外科研立项项目专项金费(2002)