Abstract
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, Al-doping offers the lowest discharge capacity and Co-doping shows the worst cycling performance.
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Wu, X.M., Li, R.X., Chen, S. et al. Comparative study of Co, Cr and Al-doped LiMnO2 prepared by ion exchange. Bull Mater Sci 31, 109–113 (2008). https://doi.org/10.1007/s12034-008-0019-z
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DOI: https://doi.org/10.1007/s12034-008-0019-z