Size-Controlled Synthesis of LiFePO4/C Composites as Cathode Materials for Lithium Ion Batteries

被引:2
作者
Liu, Jiali [1 ,2 ]
Wang, Zhangzhi [3 ]
Zhang, Guohua [3 ]
Liu, Yun [3 ]
Yu, Aishui [1 ,2 ]
机构
[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
[2] Fudan Univ, Inst New Energy, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
[3] Hangzhou Golden Horse Energy Technol Co LTD, Xiaoshan Econ & Technol Dev Zone, Hangzhou 311200, Zhejiang, Peoples R China
关键词
Nano-microstructured micro-spherical; spray-drying method; lithium iron phosphate; size-controlled synthesis; electrochemical performance; PHOSPHO-OLIVINES; PERFORMANCE; ELECTRODE; NETWORK; ROUTE;
D O I
暂无
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Nano-micro-structured spherical LiFePO4/C composite is synthesized via a ball-milling-assisted spray-drying method. SEM characterization demonstrates that the primary and secondary particle sizes are on the order of several hundred nanometers and approximately fifteen microns. The primary particles are successfully controlled through homogenous milling with a narrow particle size distribution. Herein, LiFePO4/C composites with a primary particle (i.e., 200 nm and 400 nm in diameter) are prepared. The relationship between electrochemical performance and particle size is evaluated using both half- and full-cell tests. The results demonstrate that the 200 nm diameter sample has a better rate capability and low-temperature performance, whereas the 400 nm sample is better at cycling.
引用
收藏
页码:2378 / 2387
页数:10
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