Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1653155 | Materials Letters | 2006 | 4 Pages |
Abstract
Spinel lithium manganese oxide has been synthesized by high temperature solid-state reaction, and coated with gold nano-film by ion sputtering method. The nano-film coated LiMn2O4 shows better electrochemical performance than the unmodified one. According to electrochemical impedance spectroscopy and energy dispersive X-ray analysis, the improvement of capacity retention is attributed to reduced contact area of electrode/electrolyte interface and suppressed dissolution of manganese during electrochemical cycling.
Keywords
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Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Jian Tu, Xin Bing Zhao, Gao Shao Cao, Jiang Ping Tu, Tie Jun Zhu,