The effect of Lithium source on the electrochemical performance of LiFePO4/C cathode materials synthesized by Sol-gel method

被引：5

作者：

Hu, Zhiqiang ^{[1
]}

Yang, Dongxue ^{[1
]}

Yin, Kejian ^{[1
]}

Liu, Jingxiao ^{[1
]}

Li, Fei ^{[1
]}

Gao, Wenyuan ^{[1
]}

Qin, Ying ^{[1
]}

Liu, Hua ^{[2
]}

机构：

[1] Dalian Polytech Univ, Inst New Energy Mat, Dalian 116034, Peoples R China

[2] Wuhu Evershine Automot Component Co LTD, Wuhu Anhui 241000, Peoples R China

来源：

LEADING EDGE OF MICRO-NANO SCIENCE AND TECHNOLOGY | 2013年 / 669卷

关键词：

lithium iron phosphate; lithium source; sol-gel method; cathode materials;

D O I：

10.4028/www.scientific.net/AMR.669.311

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

LiFePO4/C cathode materials were synthesized by Sol-gel method under the same process conditions using different water-soluble lithium source (LiOH, Li2CO3, LiNO3). The phase of synthesized powders were characterized by XRD; and the electrochemical performance of the material was investigated by measurements of cyclic voltammetry, AC impedance measurements, charge and discharge. The results show that the synthesized LiFePO4/C using LiOH as the lithium source has high electrochemical reversibility and low internal impedance. The specific discharge capacity is 147.5mAh/g under the discharge at 0.2C rate. It also has high stability of cycle capacity, and almost no attenuation after 30 cycles. So it has the excellent electrochemical performance.

引用

页码：311 / +

页数：3

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