钠离子电池层状氧化物正极材料的表面修饰研究

戚兴国, 王伟刚, 胡勇胜, 张　强

Surface modification research of layered oxide materials for sodium-ion batteries

Xingguo QI, Weigang WANG, Yongsheng HU, Qiang ZHANG

图5 (a)～(c)为电压范围为2.5～4.0 V和(d)～(f)为2.5～4.1 V时不同Mn包覆含量的[(a), (d)]首周充放电曲线，[(b), (e)]倍率性能和[(c), (f)]100周长循环性能图。

Fig.5 [(a), (d)] charge/discharge profiles, [(b), (e)] rate performance and [(c), (f)] cycling performance for materials with different Mn contents within the voltage range of 2.5～4.0 V and 2.5～4.1 V, respectively