Citation: WU Guan, ZHOU Ying-Ke. Preparation by Employing Mixed Lithium Source and Carbon Content Optimization of LiFePO₄/C Materials[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(5): 850-856. doi: 10.11862/CJIC.2018.118 shu

Preparation by Employing Mixed Lithium Source and Carbon Content Optimization of LiFePO₄/C Materials

WU Guan ,
ZHOU Ying-Ke ^,

State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China

Corresponding author: ZHOU Ying-Ke, Zhouyingke@wust.edu.cn
Received Date: 19 December 2017
Revised Date: 12 March 2018

Figures(8)

The LiFePO₄/C composites have been successfully synthesized by adopted Li₂CO₃ and LiOH·H₂O as mixed lithium source, the carbon content of the as-prepared LiFePO₄/C materials have been optimized. Since the melting point of LiOH is lower than that of Li₂CO₃, adopt mixed lithium source can achieve better melting state at the same temperature, and favors the conductivity of lithium ions during the high temperature synthetic process to obtain pure LiFePO₄ structure. The carbon content of LiFePO₄/C composites were optimized to improve the electroconductivity and control the particle size. The LiFePO₄/C cathode displayed excellent crystal structure, processability and electrochemical performances. The discharge capacity of the as-obtained LiFePO₄/C composites is as high as 158.2 mAh·g^-1, after 100 days storage, the capacity retention of full cells is still maintained higher than 94.0%, representing the superior long-term reliability of the optimized LiFePO₄/C material.
- LiFePO₄,
- lithium source,
- carbon content,
- long-term reliability
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Preparation by Employing Mixed Lithium Source and Carbon Content Optimization of LiFePO4/C Materials

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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Preparation by Employing Mixed Lithium Source and Carbon Content Optimization of LiFePO₄/C Materials