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Fe-doped anatase TiO2/carbon composite as an anode with superior reversible capacity for lithium storage

机译:Fe-掺杂的锐钛酶TiO2 /碳复合材料作为阳极具有优异的锂储存可逆容量

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摘要

This paper reports an economic and effective wet chemistry process to prepare an Fe-doped anatase TiO2/carbon composite with excellent performance in lithium-ion batteries. The as-prepared materials possess large BET specific area and high conductivity, owing to the existence of iron and carbon, which is conducive to electrolyte permeation and in favor of accelerating the electrochemical kinetics. When used as an anode material for advanced lithium storage, it leads to much better electrochemical performance than the pure TiO2, delivering an initial discharge capacity of 381.7 mA h g~(-1) with a drop of less than 1% from the 2~(nd) cycle to the 300~(th) cycle at a high current density of 10C (1C =170 mA g~(-1)).
机译:本文报告了经济型湿化学过程,制备具有优异性锂离子电池的Fe掺杂的锐钛矿TiO2 /碳复合材料。 由于铁和碳的存在,所制备的材料具有大的BET特异性区域和高导电性,这有利于电解质渗透并有利于加速电化学动力学。 当用作高级锂储存的阳极材料时,它导致比纯TiO2更好的电化学性能,从281.7 mA Hg〜(-1)的初始放电容量,从2〜( nd)以高电流密度为10℃(1c = 170mA g〜(-1))循环到300〜(th)循环。

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  • 来源
    《RSC Advances》 |2015年第114期|共8页
  • 作者单位

    School of Metallurgy and Environment Central South University 932 Lushan South Road Changsha 410083 PR China.;

    School of Metallurgy and Environment Central South University 932 Lushan South Road Changsha 410083 PR China.;

    School of Metallurgy and Environment Central South University 932 Lushan South Road Changsha 410083 PR China.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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