Synthesis of LiFePO4/C by Carbon Thermal Reduction Method and its Electrochemical Properties

被引：3

作者：

Chen, Chao ^{[1
]}

Zhang, Yun ^{[1
]}

Wang, Fu ^{[1
]}

Zou, Jizhou ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China

来源：

ADVANCED MATERIALS AND STRUCTURES, PTS 1 AND 2 | 2011年 / 335-336卷

关键词：

Lithium-ion battery; LiFePO4/C; cathode materials; carbon thermal reduction; short-time sintering; PERFORMANCE; BATTERIES;

D O I：

10.4028/www.scientific.net/AMR.335-336.1364

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

LiFePO4/C were successfully synthesized by carbon thermal reduction method at sintering temperature of 650 degrees C for 12h, using Li2CO3, FePO4 and three organic carbon sources (citric acid, glucose and ascorbic acid) as starting materials. The crystal structure, morphology and electrochemical performances were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Charge/Discharge Test. The results showed that the sample using glucose as carbon source was shuttle type porous particles with bore diameter from 50 to 100 nm, charge/discharge test showed that the sample had not only high initial discharge capacity of 155.1mAh/g at 0.1C (17mA/g), and 144.8 mAh/g at 1C, but also excellent rate performance. Moreover, the capacities lose which was only 0.97% after 10 cycling number at 1C indicate its good cycling stability.

引用

页码：1364 / 1367

页数：4