Citation: Shi Tao Song, Pei Hua Ma, Shi You Li, Xiao Chuan Deng, Chun Yan Yan. Synthesis and electrochemical properties of Li_1-xV_xCr_yFe_1-yPO₄/C as a cathode material[J]. Chinese Chemical Letters, ;2008, 19(3): 338-341. doi: 10.1016/j.cclet.2008.01.001 shu

Synthesis and electrochemical properties of Li_1-xV_xCr_yFe_1-yPO₄/C as a cathode material

a Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China;
b Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

Received Date: 27 August 2007

Fund Project: This work was supported by the National Key Technologies R&D Program of China during the 10th Five-Year Plan Period (No. 2004BA602B-01) and Science and Technology Foundation of Qinghai Province (No. 2006-G-168).

Composites Li_1-xV_xCr_yFe_1-yPO₄/C (x=0.01, 0.02; y=0.01, 0.02) were synthesized by solid-state reaction method. The influence of the content of doping vanadium and chromium on the structure of Li_1-xV_xCr_yFe_1-yPO₄/C was investigated by XRD, while the morphology of powders was observed by SEM. The investigation of the electrochemical performances showed that the Li_0.99V_0.01Cr_0.02Fe_0.98PO₄/C material has a higher capacity. At 0.1 C discharging rate, it is capable of delivering reversible specific capacity of 163.8 mAh/g with fairly stable cycleability.
- Li_1-xV_xCr_yFe_1-yPO₄/C,
- Cathode material,
- Ion doping
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