期刊信息

  • 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
  • 主办： 河北师范大学
  • ISSN： 1000-5854
  • CN： 13-1061/N
  • 中国科技核心期刊
  • 中国期刊方阵入选期刊
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  • 华北优秀期刊
  • 河北省优秀科技期刊

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锂电池正极材料CuFeS2的电化学性能研究

  • 1. 河北工业大学 材料科学与工程学院, 天津 300131;
    2. 天津轻工职业技术学院 电子信息与自动化学院, 天津 300350;
    3. 天津市津能电池科技有限公司, 天津 300131
  • DOI： 10.11826/j.issn.1000-5854.2014.03.016

Study on Electrochemical Properties of Chalcopyrite CuFeS2 Cathode Material for Lithium Battery

摘要/Abstract

摘要：

利用溶剂热法合成了纯净的CuFeS2粉体，并将其作为锂电池正极材料进行测试.试验结果表明，CuFeS2具有很高的室温一次放电容量，在14mA/g电流密度下，Li/CuFeS2电池的首次放电容量为1100mAh/g，在-20℃，其放电容量仍可达到400mAh/g以上.Li/CuFeS2电池具有2个放电平台，而每个放电平台对应不同的电极反应.

Abstract：

Chalcopyrite CuFeS2 was synthesized by solvothermal method, and used it as cathodic active species for lithium ion battery.Electrochemical test results showed that Li/CuFeS2 had a high initial discharge capacity of 1100mAh/g at a current density of 14mA/g under room temperature.Even under -20℃, the initial discharge capacity was still more than 400mAh/g.The Li/CuFeS2 had two discharge plateaus for different discharge steps.

关键词

关键词： 锂电池 ; CuFeS2 ; 正极材料 ; 电化学性能
Key words： lithium ion battery ; CuFeS2 ; cathode material ; electrochemical property

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