Thermal explosion synthesis of LiFePO4 as a cathode material for lithium ion batteries

doi:10.1007/s11164-017-2873-z

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	Thermal explosion synthesis of LiFePO4 as a cathode material for lithium ion batteries
	Chen, Xiujuan 1; Peng, Xi 2; Zhang, Penglin 2; Sun, Bingxue 2
刊名	Research on Chemical Intermediates
	2020-10-01
卷号	46 期号:10 页码:4345-4357
关键词	Cathodes Crystal structure Electric discharges Electrochemical impedance spectroscopy Heat treatment Iron compounds Lithium compounds Olivine Particle size Particle size analysis Scanning electron microscopy Tellurium Transmission electron microscopy Capacity retention Cath-ode materials Discharge capacities Electrochemical test Galvanostatic charges Heat treatment temperature LiFePO4 Particle size analyzers
ISSN号	09226168
DOI	10.1007/s11164-017-2873-z
英文摘要	Olivine-type LiFePO4 cathode material was successfully synthesized by a simple method of thermal explosion (TE) using hexamethylenetetramine (C6H12N4) as fuel. The crystalline phase, morphology and particle size of powders were characterized by X-ray diffraction, scanning electron microscope, particle size analyzer and transmission electron microscope measurements. And the electrochemical properties were investigated by galvanostatic charge–discharge tests and electrochemical impedance spectroscopy. The results indicated that the samples synthesized by TE showed an olivine crystal structure with space group Pnmb. In addition, both structure and particle size could be adjusted by the amount of C6H12N4 and the heat treatment temperature in the TE. When the amount of C6H12N4 was 30 wt%, the heat treatment temperature was 800 °C and the particle-size distribution fell in a range of 300–400 nm. Electrochemical tests indicated that the LiFePO4 sample synthesized in such conditions, without additional carbon coating and cation doping, shows a discharge capacity of 110.4 mAh g−1 and an excellent capacity retention rate of 87% after 50 cycles at 1 C. © 2017, Springer Science+Business Media Dordrecht.
WOS研究方向	Chemistry
语种	英语
出版者	Springer
WOS记录号	WOS:000563774800002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115028]
专题	机电工程学院材料科学与工程学院
作者单位	1.School of Mechanical and Electronical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Chen, Xiujuan,Peng, Xi,Zhang, Penglin,et al. Thermal explosion synthesis of LiFePO4 as a cathode material for lithium ion batteries[J]. Research on Chemical Intermediates,2020,46(10):4345-4357.
APA	Chen, Xiujuan,Peng, Xi,Zhang, Penglin,&Sun, Bingxue.(2020).Thermal explosion synthesis of LiFePO4 as a cathode material for lithium ion batteries.Research on Chemical Intermediates,46(10),4345-4357.
MLA	Chen, Xiujuan,et al."Thermal explosion synthesis of LiFePO4 as a cathode material for lithium ion batteries".Research on Chemical Intermediates 46.10(2020):4345-4357.