摘要
An O2-type layered LiNi 0.5 Mn 0.5 O2 was prepared by rapidly-quenched method, and the structural feature was studied by X-Ray Diffraction. The material synthesized at 950℃ was with a single O2-type structure. Charge and discharge in a voltage range of 2.0-4.35V, the discharge specific capacity of material at the 1st cycle is 143.1 mAh/g in a current density of 0.5 mA/cm2, and the plot of discharge was with two voltage plat at 3.6 V and 2.8V.
An O2-type layered LiNi0.5Mn0.5O2 was prepared by rapidly-quenched method, and the structural feature was studied by X-Ray Diffraction. The material synthesized at 950℃ was with a single O2-type structure. Charge and discharge in a vohage range of 2.0-4.35V, the discharge specific capacity of material at the 1st cycle is 143. 1 mAh/ g in a current density of 0.5 mA/cm^2 . and the plot of discharge was with two voltage plat at 3.6 V and 2.8V.
出处
《广东有色金属学报》
2005年第2期436-438,共3页
Journal of Guangdong Non-Ferrous Metals
关键词
锂电池
电化学
分层结构
安全性能
lithium ion batteries
layered structure LiNi ,LiNi0.5Mn0.5O2
rapidly quenched
electrochemical performance
