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研究论文

Ni_(0.67)Mg_(0.33)O贮锂性能的研究

  • 黄镇财 ,
  • 陈茂惠 ,
  • 吴国涛 ,
  • 尤金跨 ,
  • 林祖赓
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  • 厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室,厦门大学化学系固体表面物理化学国家重点实验室 福建厦门 361005 ,福建厦门 361005 ,福建厦门 361005 ,福建厦门 361005 ,福建厦门 361005

收稿日期: 2003-02-28

  修回日期: 2003-02-28

  网络出版日期: 2003-02-28

Study of Electrochemical Lithium Intercalation Performance of Ni_(0.67)Mg_(0.33)O

  • HUANG Zhen_cai ,
  • CHEN Mao_hui ,
  • WU Guo_tao ,
  • YOU Jin_kua ,
  • LIN Zu_gengDept. of Chem.
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Received date: 2003-02-28

  Revised date: 2003-02-28

  Online published: 2003-02-28

摘要

通过溶胶-凝胶法制备了Ni-Mg-O及作为对照物的NiO样品,研究了其电化学嵌锂性能,并对样品进行了XRD结构表征,Rietveld精化以及贮锂性能测试.结果表明:Ni-Mg-O电极由于Mg的掺入而抑制了其中Ni2+的还原,导致材料的比容量降低.但同时又因该样品形成均一的固溶体使得NiO分散效果较好,从而改善其循环性能.

本文引用格式

黄镇财 , 陈茂惠 , 吴国涛 , 尤金跨 , 林祖赓 . Ni_(0.67)Mg_(0.33)O贮锂性能的研究[J]. 电化学, 2003 , 9(1) : 19 -22 . DOI: 10.61558/2993-074X.1478

Abstract

In the present work, Ni0.67Mg0.33O and NiO were produced by sol_gel method, and characterized by XRD, a rietveld refinement and the discharge/charge test.It was found that the magnesium_doping restrained the reduction of Ni and decreased the reversible capacity for the sample of Ni0.67Mg0.33O. But the formation of the solid solution after the magnesium_doping facilitated the high dispersion of NiO, and accordingly improved the electrochemical performance.

参考文献

[1] PolzetP,LaruellS,GrugeonS,etal.Nano-sizedtransition-metaloxidesasnegative-electrodemateri-alsforlithium-ionbatteries[J].Nature,2000,407:496~499. [2] NakayamaT,IchikuniN,SatoS,etal.Ni/MgOcatalystprepatedusingcitricacideforhydrogenationofcarbondioxide[J].Appl.Catal.A,1997,158:185~199. [3] YoungRA,SakthivelA,MossTS,etal.DBWS-9411-anupgradeoftheDBWS*.*programsforri-etveldrefinementwithPCandmainframecomputers[J].J.Appl.Cryst.,1995,28:366~367
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