Codoping effect of Li_1.1V_0.9O₂ anodes for lithium-ion batteries with Mo and W (Li_1.1V_0.9鈭?xMo_xW_xO₂): Based on electronic structure calculations using full-potential

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• 作者：Hyung Sun Kim^a ; Hannah Song^b ; Ji Kwon Jung^a ; Byung-Ki Na^c ; Byung Won Cho^a ; Yong-Tae Kim^b ; ^{yongtae@pusan.ac.kr}
• 关键词：Lithium vanadium oxide ; Anode ; Density of state ; Lithium batteries
• 刊名：Journal of Alloys and Compounds
• 出版年：2012
• 期刊代码：45_09258388
• 类别：ms
• 出版时间：15 June, 2012
• 卷：526
• 期：Complete
• 页码：135-138
• 文件大小：587 K

摘要

Pure crystalline doped Li_1.1V_0.9O₂ powder was prepared. The specific charge/discharge capacities of the doped Li_1.1V_0.9O₂ anodes were more than double of those of the bare Li_1.1V_0.9O₂ anodes, especially at high C-rates. The main origin of such capacities was revealed to be the increase in electronic conductivity upon doping due to the extra free electron.