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：LIU Guoqiang,GUO Qingshan,LI Xiaoxia,and WU Qiuyang School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China 

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.