Electrochemical properties of spinel compound LiNi_(0.5)Mn_(1.2)Ti_(0.3)O_4 as cathode materials for lithium ion batteries
Electrochemical properties of spinel compound LiNi_(0.5)Mn_(1.2)Ti_(0.3)O_4 as cathode materials for lithium ion batteries作者机构:School of Materials and Metallurgy Northeastern University Shenyang China
出 版 物:《Rare Metals》 (稀有金属(英文版))
年 卷 期:2010年第29卷第6期
页 面:572-575页
核心收录:
学科分类:0808[工学-电气工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学] 0702[理学-物理学]
主 题:lithium batteries cathode materials sol-gel process electrochemical properties
摘 要:The electrochemical properties of spinel compound LiNi0.5Mn1.2Ti0.3O4 were investigated in this *** chemicals LiAc·2H2O,Mn(Ac)2·2H2O,Ni(Ac)2·4H2O,and Ti(OCH3)4 were used to synthesize LiNi0.5Mn1.2Ti0.3O4 by a simple sol-gel *** discharge capacity of the sample reached 134 mAh/g at a current rate of *** first and fifth cycle voltammogram almost overlapped,which showed that the prepared sample LiNi0.5Mn1.2Ti0.3O4 had excellent good cycle *** were two oxidation peaks at 4.21 V and 4.86 V,and two reduction peaks at 4.55 V and 3.88 V in the cycle voltammogram,*** electrochemical impedance spectroscopy and its fitted result,the lithium ion diffusion coefficient was measured to be approximately 7.76 × 10?11 cm2/s.