Synthesis and characterization of Li2Fe0.97M0.03SiO4 (M = Zn2+, Cu2+, Ni2+) cathode materials for lithium ion batteries

被引：131
作者：
Deng, C. [1 ]
Zhang, S. [2 ]
Yang, S. Y. [2 ]
Fu, B. L. [2 ]
Ma, L. [1 ]
机构：
[1] Harbin Normal Univ, Coll Chem & Chem Engn, Prov Key Lab Nanofunctionalized Mat & Excitated S, Harbin 150025, Heilongjiang, Peoples R China
[2] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Lithium iron orthosilicate; Lithium ion battery; Cation doping; Electrochemical reversibility; ELECTROCHEMICAL PERFORMANCE; POSITIVE-ELECTRODE; LI2FESIO4; LI; LI2MNSIO4; LIFEPO4/C; LI2MSIO4; LI2MNXFE1-XSIO4; LI3V2(PO4)(3); SUBSTITUTION;
D O I：
10.1016/j.jpowsour.2010.06.064
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Attempts to dope Zn2+, Cu2+ or Ni2+ are made for Li2FeSiO4. The effects of dopant on the physical and electrochemical characteristics of Li2FeSiO4 were investigated. Zn2+ successfully entered into the lattice of Li2FeSiO4 and induced the change of lattice parameters. Compared with the undoped Li2FeSiO4, Li2Fe0.97Zn0.03SiO4 has higher discharge capacity, better electrochemical reversibility and lower electrode polarization. The improved electrochemical performance of Li2Fe0.97Zn0.03SiO4 can be attributed to the improved structural stability and the enhanced lithium ion diffusivity brought about by Zn2+ doping. However, Ni2+ and Cu2+ cannot be doped into the lattice of Li2FeSiO4. Cu and NiO are formed as impurities in the Cu- and Ni-containing samples, respectively. Compared with the undoped Li2FeSiO4, the Cu- and Ni-containing samples have lower capacities and higher electrochemical polarization. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：386 / 392
页数：7
相关论文
共 39 条
  • [1] Polymorphs of Li3PO4 and Li2MSiO4 (M = Mn, Co) The role of pressure
    Arroyo y de Dompablo, M. E.
    Amador, U.
    Gallardo-Amores, J. M.
    Moran, E.
    Ehrenberg, H.
    Dupont, L.
    Dominko, R.
    [J]. JOURNAL OF POWER SOURCES, 2009, 189 (01) : 638 - 642
  • [2] On-demand design of polyoxianionic cathode materials based on electronegativity correlations:: An exploration of the Li2MSiO4 system (M = Fe, Mn, Co, Ni)
    Arroyo-de Dompablo, M. E.
    Armand, M.
    Tarascon, J. M.
    Amador, U.
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2006, 8 (08) : 1292 - 1298
  • [3] On the energetic stability and electrochemistry of Li2MnSiO4 polymorphs
    Arroyo-deDompablo, M. E.
    Dominko, R.
    Gallardo-Amores, J. M.
    Dupont, L.
    Mali, G.
    Ehrenberg, H.
    Jamnik, J.
    Moran, E.
    [J]. CHEMISTRY OF MATERIALS, 2008, 20 (17) : 5574 - 5584
  • [4] The effect of Al substitution on the electrochemical insertion properties of the lithium vanadium phosphate, Li3V2(PO4)3
    Barker, J.
    Gover, R. K. B.
    Burns, P.
    Bryan, A.
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (04) : A307 - A313
  • [5] A novel carbon-coated LiCoO2 as cathode material for lithium ion battery
    Cao, Q.
    Zhang, H. P.
    Wang, G. J.
    Xia, Q.
    Wu, Y. P.
    Wu, H. Q.
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (05) : 1228 - 1232
  • [6] Preparation and electrochemical performance studies on Cr-doped Li3V2(PO4)3 as cathode materials for lithium-ion batteries
    Chen, Yinghua
    Zhao, Yanming
    An, Xiaoning
    Liu, Jianmin
    Dong, Youzhong
    Chen, Ling
    [J]. ELECTROCHIMICA ACTA, 2009, 54 (24) : 5844 - 5850
  • [7] Electronically conductive phospho-olivines as lithium storage electrodes
    Chung, SY
    Bloking, JT
    Chiang, YM
    [J]. NATURE MATERIALS, 2002, 1 (02) : 123 - 128
  • [8] Size effects on carbon-free LiFePO4 powders
    Delacourt, C.
    Poizot, P.
    Levasseur, S.
    Masquelier, C.
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (07) : A352 - A355
  • [9] Effect of Mn substitution on the structural, morphological and electrochemical behaviors of Li2Fe1-xMnxSiO4 synthesized via citric acid assisted sol-gel method
    Deng, C.
    Zhang, S.
    Yang, S. Y.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 487 (1-2) : L18 - L23
  • [10] Li2MSiO4 (M = Fe and/or Mn) cathode materials
    Dominko, R.
    [J]. JOURNAL OF POWER SOURCES, 2008, 184 (02) : 462 - 468
1234