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
Run Xiu Li1  Ming Fei Xu2  Shang Chen1  Xian Ming Wu1  Ze Qiang He1 
[1] College of Chemistry and Chemical Engineering, Jishou University, Jishou Hunan, 416000, PR China$$College of Chemistry and Chemical Engineering, Jishou University, Jishou Hunan, 416000, PR ChinaCollege of Chemistry and Chemical Engineering, Jishou University, Jishou Hunan, 416000, PR China$$;College of Metallurgical Science and Engineering, Central South University, Changsha 410083, PR China$$College of Metallurgical Science and Engineering, Central South University, Changsha 410083, PR ChinaCollege of Metallurgical Science and Engineering, Central South University, Changsha 410083, PR China$$
关键词: Lithium ion;    doping;    electrochemistry.;   
DOI  :  
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】

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