期刊论文详细信息
Bulletin of Materials Science | |
Comparative study of Co, Cr and Al-doped LiMnO2 prepared by ion exchange | |
关键词: Lithium ion; doping; electrochemistry.; | |
学科分类:材料工程 | |
来源: Indian Academy of Sciences | |
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【 摘 要 】
The Co, Cr and Al-doped LiMnO2 powders were prepared by ion exchange. Phase identification, surface morphology and electrochemical properties were studied by X-ray diffraction, scanning electron microscopy and galvanostatic charge–discharge experiments. The results show that the doped LiMnO2 keeps the structure of LiMnO2. As compared to LiMnO2, Co, Cr and Al-doped LiMnO2 offers higher discharge capacity and better cycling performance. The discharge capacities of Co, Cr and Al-doped LiMnO2 decreases yet the cycling performance improves with the increase of doping concentration. For these doped LiMnO2 at the same doping concentration, Cr-doping shows the highest discharge capacity and best cycling performance, Aldoping offers the lowest discharge capacity and Co-doping shows the worst cycling performance.【 授权许可】
CC BY
【 预 览 】
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RO201902183202067ZK.pdf | 1149KB | ![]() |