Journal
JOURNAL OF POWER SOURCES
Volume 327, Issue -, Pages 653-657Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.07.109
Keywords
Sodium-ion batteries; NaNi0.5Mn0.3Ti0.2O2; Cathode material; Half-cell; Full-cell
Funding
- 863 Program of China [2014AA052302]
- National Natural Science Foundation of China [51572116]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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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. (C) 2016 Elsevier B.V. All rights reserved.
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