人工晶体学报2012，Vol.41Issue(2)：436-440,5.
燃烧辅助合成LiNi0.05Mn1.95O4粉体及其性质研究
Combustion-assisted Synthesis and Characterization of LiNi0.05Mn1.95O4 Powders
摘要
Abstract
LiNi0.05 Mn1.95 O4 powders were prepared by combustion assisted sol-gel method using lithium acetate, manganese acetate, nickel nitrate, citric acid and ethylene glycol as starting materials. The structure, morphology, and electrochemical properties of the powders were investigated by X-ray diffraction, scanning electron microscopy, cyclic voltammetry and galvanostatic charge-discharge experiments. The results show that LiNi0.05 Mn1.95 O4 precursor gel ignited in air for several minutes has already been the structure of spinel. The powders heated at 750℃ for 4hours prepared by this technique is well crystallized. The grains are small and uniform. The specific capacity of the prepared powders is 117.5 mAh·g-1 and show the capacity retention of 95.1% after being cycled 50 times.关键词
锂离子电池/燃烧/正极材料/电化学Key words
lithium-ion battery/combustion/cathode material/electrochemistry分类
信息技术与安全科学引用本文复制引用
吴显明,陈上,刘金练,麦发任,李长安..燃烧辅助合成LiNi0.05Mn1.95O4粉体及其性质研究[J].人工晶体学报,2012,41(2):436-440,5.基金项目
湖南省教育厅自然科学基金资助项目(07B060) （07B060）
