Citation: Shao Hua Luo, Zi Long Tang, Jun Biao Lu, Zhong Tai Zhang. A novel synthetic route for LiFePO₄/C cathode materials by addition of starch for lithium-ion batteries[J]. Chinese Chemical Letters, ;2007, 18(2): 237-240. doi: 10.1016/j.cclet.2006.12.041 shu

A novel synthetic route for LiFePO₄/C cathode materials by addition of starch for lithium-ion batteries

a State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
b Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China

Received Date: 10 October 2006

Fund Project: This work was supported by the National Natural Science Foundation of China (no. 50372003,50472005) and Tsinghua University Fundamental Research Fund (no. JC2003040).

LiFePO₄/Carbon composite cathode material was prepared using starch as carbon source by spray-pelleting and subsequent pyrolysis in N₂. The samples were characterized by XRD, SEM, Raman, and their electrochemical performance was investigated in terms of cycling behavior. There has a special micro-morphology via the process, which is favorable to electrochemical properties.The discharge capacity of the LiFePO₄/C composite was 170 mAh g^-1, equal to the theoretical specific capacity at 0.1 C rate. At4 C current density, the specific capacity was about 80 mAh g^-1, which can satisfy for transportation applications if having a more flat discharge flat.
- Lithium-ion batteries,
- Cathode material,
- Carbon coated LiFePO₄,
- Spray-pelleting
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