An O3-type NaNi0.5Mn0.3Ti0.2O2 compound as new cathode material for room-temperature sodium-ion batteries

作者：Wang, Hongbo; Gu, Minyi; Jiang, Jingyu; Lai, Chao^*; Ai, Xinping

来源：Journal of Power Sources, 2016, 327: 653-657.

DOI：10.1016/j.jpowsour.2016.07.109

• Sodium-ion batteries
• NaNi0.5Mn0.3Ti0.2O2
• Cathode material
• Half-cell
• Full-cell

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.

• 出版日期2016-9-30
• 单位武汉大学