ELECTROCHEMICAL PROPERTIES OF LiFePO4 SYNTHESIZED BY A NOVEL CO-COATINGMETHOD
Carbon coated LiFePO4 particles were first synthesized using oxalic acid as carbom source. Then the LiFePO4/C particles were coated with La0.7Sr0.3MnO3 nanolayer by a suspension mixing process. The microstructures of the synthesized materials were investigated by HRTEM. The electrochemical performance of LiFePO4/C with different La0.7Sr0.3MnO3 contents was studied by electrochemical impedance spectroscopy, cyclic voltammetry and galvanostatic measurements. The results indicated that carbon and 2 wt% La0.7Sr0.3MnO3 co-coated LiFePO4 showed the best electrochemical performance, the electrode delivered a reversible capacity of 122 mAh/g at 1C discharge rate after 45 cycles.
YAN CUI RUISONG GUO
Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education,Tianjin University, Tianjin 300072, China
国际会议
The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)
武汉
英文
620-626
2010-05-02（万方平台首次上网日期，不代表论文的发表时间）