引用本文:
夏熙, 努丽燕娜, 郭再萍. 溶胶凝胶法制备纳米LiCoO2[J]. 应用化学,
1999, 16(4): 66-69.
Citation: Xia Xi, Nuli Yanna, Guo Zaiping. Preparation of Nanosize LiCoO2 by Sol-gel Method[J]. Chinese Journal of Applied Chemistry, 1999, 16(4): 66-69.
Citation: Xia Xi, Nuli Yanna, Guo Zaiping. Preparation of Nanosize LiCoO2 by Sol-gel Method[J]. Chinese Journal of Applied Chemistry, 1999, 16(4): 66-69.
溶胶凝胶法制备纳米LiCoO2
English
Preparation of Nanosize LiCoO2 by Sol-gel Method
Abstract:
Nanosize LiCoO2 was synthesized by sol-gel method, characterized and tested by XRD, TG-DTA, BET and ICP measurements. The sample sized in ca. 30 nm with low impurity was obtained. Their electrochemical behavior have been studied by constant current charge/discharge, cyclic voltammetry and AC impedance techniques. The results show that the nanosize LiCoO2 has a larger initial discharge capacity, better cyclic stability and higher discharge voltage than common LiCoO2. The mixture of nano LiCoO2 with common LiCoO2 in optimum weight ratio showed an improved cyclic stability.
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Key words:
- sol-gel method
- / nanosize
- / LiCoO2
- / initial discharge capacity
- / cyclic stability
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