Nano Archive

Improved performance of LiMn2O4 cathode materials for lithium ion batteries by gold coating

Tu, Jian and Zhao, Xin Bing and Cao, Gao Shao and Tu, Jiang Ping and Zhu, Tie Jun (2006) Improved performance of LiMn2O4 cathode materials for lithium ion batteries by gold coating. Materials Letters, 60 (27). 3251 - 3254. (In Press)

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Official URL: http://www.sciencedirect.com/science/article/B6TX9...

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.

Item Type:Article
Uncontrolled Keywords:Lithium manganese oxide; Coating; Cathode materials; Electrochemical impedance spectroscopy; Lithium ion battery
Subjects:Material Science > Nanostructured materials
ID Code:6783
Deposited By:SPI
Deposited On:06 Feb 2010 11:52
Last Modified:06 Feb 2010 11:52

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