Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1292564 | Journal of Power Sources | 2006 | 7 Pages |
Abstract
Spinel LiMn2O4 thin-film cathodes were obtained by spin-coating the chitosan-containing precursor solution on a Pt-coated silicon substrate followed by a two-stage heat-treatment procedure. The LiMn2O4 film calcined at 700 °C for 1 h showed the highest Li-ion diffusion coefficient, 1.55 × 10−12 cm2 s−1 (PSCA measurement) among all calcined films. It is attributed to the larger interstitial space and better crystal perfection of LiMn2O4 film calcined at 700 °C for 1 h. Consequently, the 700 °C-calcined LiMn2O4 film exhibited the best rate performance in comparison with the ones calcined at other temperatures.
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Authors
Fu-Yun Shih, Kuan-Zong Fung,