期刊
MATERIALS RESEARCH BULLETIN
卷 42, 期 7, 页码 1201-1211出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2006.10.022
关键词
electronic materials; inorganic compounds; intercalation reactions; electrochemical properties; energy storage
Metal-phosphate coating on LiCoO2 cathodes improved the cycle-life performance with high charge-cutoff voltages. The optimum annealing temperature and coating thickness for the excellent electrochemical properties of the metal-phosphate-coated LiCoO2 cathodes were determined. Among the metal-phosphate-coating materials, the Al-P-O coating enhanced the electrochemical properties most efficiently. The EPMA results (after cycles) with a 4.8 V cutoff confirmed that most of the nanoscale coating layers, particularly the P component, had dissolved during cycling. (c) 2006 Elsevier Ltd. All rights reserved.
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