Abstract
Due to its thermal stability, low cost and high theoretical charge capacity, LiFePO4has emerged as one of the most promising cathode materials for large-scale lithium ion batteries. In this study, we systematically investigated the effect on structure and electrochemical properties brought by Zr doping on Fe site of LiFePO4. LiFe1−yZryPO4 (y = 0, 0.01, 0.02, 0.03, 0.05, 0.07, and 0.1) samples were prepared by using solid-state reaction. The phase and structure of as prepared powders were characterized by X-ray diffraction. Cycling charge and discharge measurement at various C-rates was employed to reveal the electrochemical properties. Results showed that the sample with 1% Zr doping was observed to have the highest charge capacity at various rates.
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