Cation disordered rock salt phase Li2CoTiO4 as a potential cathode material for Li-ion batteries
作者： Meng Yang , Xiangyu Zhao , Yajuan Bian , Liqun Ma , Yi Ding
DOI: 10.1039/C2JM15587G
关键词: Carbon 、 Titanate 、 Electrochemistry 、 Conductivity 、 Diffusion 、 Materials science 、 Inorganic chemistry 、 Phase (matter) 、 Lithium 、 Ion
摘要: Li2CoTiO4 as a new titanate cathode material for Li-ion batteries was successfully synthesized by a sol–gel process. It had a cation disordered rock salt structure and showed an excellent cycle stability at room temperature. After coating with carbon, the Li2CoTiO4 possessed a high discharge capacity of 144.3 mAh g− 1. The poor conductivity and lithium ion diffusion coefficient of pure Li2CoTiO4 are the main reasons for the limited electrochemical performance of the lithium batteries. The irreversible capacity loss during …
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