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NaF—M(M=Fe,Cu)钠离子电池转换正极材料的研究

李婷 陈重学 曹余良 杨汉西

电化学2012,Vol.18Issue(4):291-294,4.
电化学2012,Vol.18Issue(4):291-294,4.

NaF—M(M=Fe,Cu)钠离子电池转换正极材料的研究

NaF-M (M = Fe, Cu) Nanocomposites as Conversion Cathode Materials for Sodium Ion Batteries

李婷 1陈重学 1曹余良 1杨汉西1

作者信息

  • 1. 武汉大学化学与分子科学学院,湖北武汉430072
  • 折叠

摘要

Abstract

NaF-M (M=Fe, Cu) nanocomposites were prepared by high-energy ball milling using TiN grind- ing nanoparticles and investigated as cathode materials for sodium ion batteries. The experimental results dem-onstrated that NaF-Fe and NaF-Cu nanocomposites can go through electrochemical conversion reaction with Na ^+ uptake or removal, delivering a reversible capacity of- 150 mAh·g^-1, even through a reversed conver-sion from initial discharged state to a charged state. These results reveal the possibility to realize a conversion reaction as long as NaF and elemental metal particles are intimately contacted to form active nanocomposites at nanodomain, which suggests a potential feasibility to use these nanocomposites as sodium-rich cathode materi-als for sodium ion batteries.

关键词

电化学转换反应/钠离子电池/正极材料

Key words

electrochemical conversion reaction/sodium ion batteries/cathode material

分类

化学化工

引用本文复制引用

李婷,陈重学,曹余良,杨汉西..NaF—M(M=Fe,Cu)钠离子电池转换正极材料的研究[J].电化学,2012,18(4):291-294,4.

基金项目

国家自然科学基金项目(No.2009CB2201003)资助 ()

电化学

OA北大核心CSCDCSTPCD

1006-3471

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