Citation: Qing Lai Jiang, Ke Du, Yan Bing Cao, Zhong Dong Peng, Guo Rong Hu, Ye Xiang Liu. Synthesis and characterization of phosphate-modified LiMn₂O₄ cathode materials for Li-ion battery[J]. Chinese Chemical Letters, ;2010, 21(11): 1382-1386. doi: 10.1016/j.cclet.2010.04.039 shu

Synthesis and characterization of phosphate-modified LiMn₂O₄ cathode materials for Li-ion battery

School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China

Received Date: 27 January 2010

Fund Project: This work was financially supported by the National High-Tech Research and Development (863) Program of China (No.2006AA11A160) and the National Natural Science Foundation of China (No.50604018).

LiMn₂O₄ spinel cathode materials were modified with 2 wt.% Li-M-PO₄ (M=Co, Ni, Mn) by polyol synthesis method. The phosphate surface-modified LiMn₂O₄ cathode materials were physically characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The charge-discharge test showed that the cycling and rate capacities of LiMn₂O₄ cathode materials were significantly enhanced by stabilizing the electrode surface with phosphate.
- Li-ion battery,
- Cathode materials,
- Spinel LiMn₂O₄,
- Phosphate,
- Polyol synthesis method
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