Effect of Various Fuel Conditions on the Synthesis of Nano Crystalline LiNiVO_4 Powders for Lithium Battery Applications

摘要

Nano crystalline inverse spinel LiNiVO_4 powders were prepared by the gel combustion route with citric acid and glycerol under three different fuel conditions as (ⅰ) total metal ion to citric acid to glycerol ratio (M/CA/G) = 1:1:1 (ⅱ) M/CA/G = 1:1:2 and (ⅲ) M/CA/G = 1:2:1. Thermal behavior, structure and phase formation of the polymeric intermediates as well as LiNiVO4 powders, were investigated by DSC, FTIR, SEM and XRD measurements. The pure crystalline phase of LiNiVO_4 powders with smallest crystallite size of 39nm were obtained from the polymeric intermediate, calcined at 450℃ for 12 h, synthesized by Gel combustion route performed under the fuel condition of M/CA/G =1:1:1.