Effect of Crystallinity on Electrochemical Insertion/Extraction of Li in Transition Metal Oxides Part I: LiMn_2O_4 and LiCo_(0.5)Ni_(0.5)O_2  

作　　者：Tomoki TSUMURA and Michio INAGAKI (Graduate School of Engineering, Hokkaido University Kita-ku, Sapporo, 060-8628 Japan) 

出　　处：《Journal of Materials Science & Technology》1999年第6期509-514,共6页材料科学技术（英文版）

摘　　要：Electrochemical insertion/extraction of Li on cathode materials of spinel type LiMn2O4 and ordered rock-salt type LiCo0.5 Ni0.5O2 was measured on samples of which structures were well characterized. On the basis of experimental results on structure, morphology and charge-discharge characteristics, the effect of crystallinity of the cathode materiaIs on electrochemical Li insertion/extraction performance was discussed. These two transition metal oxides belong to onegroup that the crystallinity of these oxides affects to the performance.Electrochemical insertion/extraction of Li on cathode materials of spinel type LiMn2O4 and ordered rock-salt type LiCo0.5 Ni0.5O2 was measured on samples of which structures were well characterized. On the basis of experimental results on structure, morphology and charge-discharge characteristics, the effect of crystallinity of the cathode materiaIs on electrochemical Li insertion/extraction performance was discussed. These two transition metal oxides belong to onegroup that the crystallinity of these oxides affects to the performance.

关 键 词：LiMn2O4 and LiCo Effect of Crystallinity on Electrochemical Insertion/Extraction of Li in Transition Metal Oxides Part I O2 NI 

分 类 号：O646[理学—物理化学]