A. Phuruangrat - Department of Materials Science and Technology, Faculty of Science,Prince of Songkla University, Hat Yai, Songkhla ۹۰۱۱۲, Thailand.
T. Thongtem - Department of Chemistry, Faculty of Science, Chiang Mai University,Chiang Mai ۵۰۲۰۰, Thailand.
S. Thongtem - Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai ۵۰۲۰۰, Thailand.

LiNi۰.۵Co۰.۵VO۴ has been successfully synthesized by tartate precursor combustion method using Li۲CO۳, Co(NO۳)۲.۶H۲O, Ni(NO۳)۲.۶H۲O and NH۴VO۳ as a starting materials in deionized water with the subsequent calcination at ۴۵۰-۶۰۰ oC for ۱۲ h. The combustion and decomposition of tartate precursor were studied by TGA and compared with tartaric acid. It found weight loss at ۵۰-۴۵۰ oC. The product showed a inverse spinel LiNi۰.۵Co۰.۵VO۴ which confirmed by PXRD. The crystal and particle sizes improved when calcination temperature was increased. Raman and FITR were studied the vibration of product. They detected V-O stretching in VO۴ tetrahedron, Li-O bending in LiO۶ octahedron and Li-O-M (M = Ni and Co) stretching. The TEM showed morphologies that composed nano-particle of LiNi۰.۵Co۰.۵VO۴.

Lithium ion batteries, LiNi۰.۵Co۰.۵VO۴, Polymerization complex, Cathode material