阳极
法拉第效率
阴极
钠
材料科学
离子
无机化学
化学
化学工程
冶金
工程类
有机化学
电极
物理化学
作者
Hongbo Wang,Minyi Gu,Jingyu Jiang,Chao Lai,Xinping Ai
标识
DOI:10.1016/j.jpowsour.2016.07.109
摘要
A single phase O3-type layered NaNi0.5Mn0.3Ti0.2O2 compound synthesized via simple solid-state reaction is first reported as a promising cathode material for sodium-ion batteries. A high reversible capacity of approximately 138 mAh g−1 and initial coulombic efficiency of above 96% can be obtained in half-cell. The performance of sodium-ion full-cells with NaNi0.5Mn0.3Ti0.2O2 as the cathode and presodiated hard carbon as the anodes were also evaluated. Based on the mass of cathode, the full-cells can still exhibit a high reversible capacity of ca. 131 mAh g−1. The prominent capacities make NaNi0.5Mn0.3Ti0.2O2 as an important cathode candidate for room temperature sodium-ion batteries.
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