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has been cited by the following article:

• TITLE: Enhanced High-Temperature Cycling Stability of LiMn2O4 by Coating LiNi0.5Mn1.5O4

  AUTHORS: Jing Yan, Wei Liu, Yuelei Wang, Xinxin Zhao, Yiming Mi, Haohan Liu

  KEYWORDS: LiMn2O4, Sol-Gel Method, Surface Coating, Electrochemical Performance

  JOURNAL NAME: Journal of Minerals and Materials Characterization and Engineering, Vol.2 No.6, November 3, 2014

  ABSTRACT: To enhance the electrochemical performances of LiMn2O4 at elevated temperature (55°C), we proposed a sol-gel method to synthesize LiNi0.5Mn1.5O4 modified LiMn2O4. The physical and electrochemical performances of pristine and LiNi0.5Mn1.5O4-coated LiMn2O4 cathode materials were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and electrochemical measurements, respectively. The results indicated that about 4-5 nm thick layer of LiNi0.5Mn1.5O4 was formed on the surface of the LiMn2O4 powders. The modified LiMn2O4 exhibited excellent storage performance at 55°C compared to the pristine one, which was attributed to the suppression of electrolyte decomposition and the reduction of Mn dissolution.