Electrochemical properties of novel O3-NaCu1/9Ni2/9Fe1/3Mn1/3O2 as cathode material for sodium-ion batteries

doi:10.3969/j.issn.2095-4239.2016.03.009

Abstract

Abstract: Sodium-ion batteries have attracted widespread attentions due to the abundant sodium resources and their potential low cost. It is crucial to develop low-cost and excellent performance cathode materials for SIBs. Herein, O3-NaCu1/9Ni2/9Fe1/3Mn1/3O2, a novel cathode material without Mn3+ has been synthesized by a simple solid-state reaction. Galvanostatic charge/discharge measurement for the O3-NaCu1/9Ni2/9Fe1/3Mn1/3O2 electrode between 2.0 V and 4.0 V provides a reversible capacity of 127 mA•h/g and the average discharge voltage of 3.1 V. The full cell using it as the cathode and hard carbon as the anode delivers an energy density of 248 W•h/kg, an energy conversion efficiency of 93% and an excellent cycling performance.

Key words:

font-family: "Times New Roman","serif""> layered oxidefont-family: 宋体, mso-bidi-font-family: "Times New Roman"">, font-family: "Times New Roman","serif"">cathode materialsfont-family: 宋体, mso-bidi-font-family: "Times New Roman"">, font-family: "Times New Roman","serif"">sodium-ion batteries

MU Linqin, QI Xinguo, HU Yongsheng, LI Hong, CHEN Liquan, HUANG Xuejie. Electrochemical properties of novel O3-NaCu1/9Ni2/9Fe1/3Mn1/3O2 as cathode material for sodium-ion batteries[J]. Energy Storage Science and Technology, 2016, 5(3): 324-328.

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