Effect of citric acid dosage and sintered temperature on the composition, morphology and electrochemical properties of lithium vanadium oxide prepared by a sol_gel method

17th IUMRS International Conference in Asia

Zhong, C.R.^1,2 ; Su, X.J.^1 ; Hou, G.L.^1 ; Liu, Z.H.^1 ; Yu, F.S.^3 ; Bi, S.^1 ; Li, H.^1

Xi'An Research Institute of High-tech, Xi'an Shaanxi

710025, China^1

Baoji Research Institute of High-tech, Baoji Shaanxi

721013, China^2

Xi'An Qinghua Cooperation, North Special Energy Group Limited Company, Xi'an Shaanxi

710025, China^3

关键词: Chelating agent;    Lithium vanadium oxides;    Sintered temperature;    Sol-Gel processing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/182/1/012017/pdf
DOI  :  10.1088/1757-899X/182/1/012017

来源: IOP

【 摘 要 】

A lithium vanadium oxide cathode material was synthesized via sol-gel processing using citric acid as the chelating agent. Different dosage of citric acid and sintered temperature were introduced to investigate their effects on the products composition, morphology and electrochemical properties. The results showed that the V2O3yield was inhibited and the crystallization of grain was accelerated with the increasing dosage of citric acid. Furthermore, V2O3was oxidized to LiV3O8and Li0.3V2O5with the increase of sintered temperature.