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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