Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 26    No. 12    December 2016

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Facile synthesis of porous LiNiVO4 powder as high-voltage cathode material for lithium-ion batteries
Mu-lan QIN1, Wan-min LIU1, Shu-quan LIANG 2,3, An-qiang PAN2,3

1. School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China;
2. School of Materials Science and Engineering, Central South University, Changsha 410083, China;
3. Key Laboratory of Nonferrous Metals Materials Science and Engineering, Ministry of Education,
Central South University, Changsha 410083, China

Abstract:Porous LiNiVO4 powder was synthesized via solution combustion synthesis method using lithium nitrate, nickel nitrate, ammonium metavanadate and citric acid as raw materials. Thermogravimetry (TG) and differential scanning calorimetry (DSC), X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy and transmission electron microscopy (TEM) were used to evaluate the structures and morphologies of samples. The results show that the calcination temperature has significant effect on the crystallinity and morphologies. Pure LiNiVO4 flaky nanoparticles with a mean particle size around 20 nm can be readily prepared by calcining the precursor in air at 500 °C for 2 h. As a cathode material for lithium-ion batteries, the porous LiNiVO4 powder exhibits a good structural reversibility.

 

Key words: lithium-ion battery; LiNiVO4; cathode material; solution combustion synthesis; nanoparticle

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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