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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. shu

Preparation of Nanosize LiCoO₂ by Sol-gel Method

1.
Institute of Applied Chemistry, Xinjiang University, Urumqi 830046

Received Date: 31 December 1998
Available Online: 4 May 1999

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.
- sol-gel method,
- nanosize,
- LiCoO₂,
- initial discharge capacity,
- cyclic stability
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Preparation of Nanosize LiCoO2 by Sol-gel Method

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通讯作者: 陈斌, bchen63@163.com

Preparation of Nanosize LiCoO₂ by Sol-gel Method