摘要
以共沉淀氢氧化物Ni1/3Co1/3Mn1/3（OH）2和LiOH·H2O为原料,研究了其恒电流充放电测试显示,在2.8~4.4V电压区间,流变相反应法合成的材料首次放电比容量高（达到170mAh/g）,循环性能好.充放电循环40次后,放电比容量为145mAh/g,容量保持率达85.3%.循环伏安实验表明,材料的结构在循环过程中保持稳定.
Ni1/3Co1/3Mn1/3 （OH）2was studied by co-precipitataion method.The electrochemical performance of LiNi1/ 3Co1/3Mn1/3O2 were tested by X-ray diffraction（XRD）,scanning electron microscope（SEM）,CV and so on.XRD indicated that the samples had good layered structure similar to α-NaFeO2.The charge-discharge tests showed that the initial discharge capacity,which was prepared by RPR,was 170 mAh/g in 2.8～4.4 V.It presented better cycle performance.The capacity of 145 mAh/g was retained after 40 charge-discharge cycles with the capacity retention of 85.3%.Cyclic voltammograms experiment showed that the structure of the material was stable in the cycle process.
出处
《河南科技学院学报》
2010年第1期52-54,61,共4页
Journal of Henan Institute of Science and Technology(Natural Science Edition)
