A Fully Sodiated NaVOPO4 with Layered Structure for High-Voltage and Long-Lifespan Sodium-Ion Batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Yongjin Fang
  • Lifen Xiao
  • Yangchun Rong
  • Yadong Liu
  • Zhongxue Chen
  • Xinping Ai
  • Yuliang Cao
  • Hanxi Yang
  • Jian Xie
  • Chengjun Sun
  • Xiaoyi Zhang
  • Bachir Aoun
  • Xianran Xing
  • Xianghui Xiao

Detail(s)

Original languageEnglish
Pages (from-to)1167-1180
Journal / PublicationChem
Volume4
Issue number5
Online published5 Apr 2018
Publication statusPublished - 10 May 2018
Externally publishedYes

Abstract

Sodium-ion batteries are the primary candidate for a low-cost and resource-abundant alternative to lithium-ion batteries for large-scale electric storage applications. However, the development of sodium-ion batteries is hindered by the lack of suitable cathode materials that have sufficient specific energy density and cycle life. Here, we report layered NaVOPO4 as a cathode material that exhibits high voltage (∼3.5 V versus Na/Na+), high discharge capacity (144 mAh g−1 at 0.05 C), and remarkable cyclability with 67% capacity retention over 1,000 cycles. The excellent performances result from the high Na+ ion diffusion rate in the two-dimensional path and the reversible transformation behavior of (de)sodiation. Particularly, this layered structure and its synthetic procedure can be extended to other alkali-metal intercalation materials, leading to other metal-ion battery systems, which opens a new avenue for large-scale energy storage systems with the development of high-energy-density and long-life cathodes for electric storage applications.

Research Area(s)

  • cathode material, energy storage, layered structure, long lifespan, NaVOPO4, sodium-ion batteries

Citation Format(s)

A Fully Sodiated NaVOPO4 with Layered Structure for High-Voltage and Long-Lifespan Sodium-Ion Batteries. / Fang, Yongjin; Liu, Qi; Xiao, Lifen; Rong, Yangchun; Liu, Yadong; Chen, Zhongxue; Ai, Xinping; Cao, Yuliang; Yang, Hanxi; Xie, Jian; Sun, Chengjun; Zhang, Xiaoyi; Aoun, Bachir; Xing, Xianran; Xiao, Xianghui; Ren, Yang.

In: Chem, Vol. 4, No. 5, 10.05.2018, p. 1167-1180.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review