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Citation: XIE Zhi-Gang. Electrochemical Performance of Cathode Material LiFePO₄ of Lithium Ion Batteries[J]. Chinese Journal of Applied Chemistry, ;2007, 24(2): 238-240. shu

Electrochemical Performance of Cathode Material LiFePO₄ of Lithium Ion Batteries

XIE Zhi-Gang ^,

1.
Chongqing University of Arts & Sciences, Chongqing 402168

Corresponding author: XIE Zhi-Gang,
Received Date: 23 March 2006
Available Online: 10 June 2006

LiFePO₄ composites obtained with sucrose or acetylene black coating processing were prepared via high temperature solid-state reaction.The crystalline structures,morphologies of the particles,and electro-chemical performance of the samples were investigated by X-ray diffraction,scanning electron microscopy,and charge-discharge test.The results show that LiFePO₄ composites were simple olive-type phase.Electrochemi-cal tests showed that LiFePO₄ composites obtained with sucrose coating processing possessed excellent electro-chemical performance,the first specific discharge capacity of which was 148.6 mA·h/g during charge and discharge at 0.2C,and even after 20 times cycling,the discharge capacity was 140.3 mA·h/g.
- lithium ion battery,
- cathode electrode material,
- LiFePO₄,
- coating
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沈阳化工大学材料科学与工程学院沈阳 110142

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Electrochemical Performance of Cathode Material LiFePO₄ of Lithium Ion Batteries