Fine-particle carbon-enriched Li0.98Mg0.02FePO4 synthesized by a novel modified solid-state reaction

被引：12
作者：
Guo, ZP [1 ]
Liu, H
Bewlay, S
Liu, HK
Dou, SX
机构：
[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2500, Australia
[2] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610065, Sichuan, Peoples R China
来源：
SYNTHETIC METALS | 2005年 / 153卷 / 1-3期
关键词：
carbon-enriched; Li0.98Mg0.02FePO4; compounds; modified solid-state reaction;
D O I：
10.1016/j.synthmet.2005.07.220
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Carbon-enriched Li0.98Mg0.02FePO4 compounds were prepared by a novel modified solid-state reaction method. Citric acid added to the precursors works as a particle size growth inhibitor as well as a carbon source. Electrochemical evaluation of the Li0.98Mg0.02FePO4 reveals a lithium insertion plateau around 3.4 V vs. Li together with a specific capacity of over 160 mAh/g at the C/20 rate. Differential capacity data confirm the two-phase nature of the insertion reactions as well as outstanding ionic reversibility.
引用
收藏
页码：113 / 116
页数：4
相关论文
共 10 条
  • [1] Electronically conductive phospho-olivines as lithium storage electrodes
    Chung, SY
    Bloking, JT
    Chiang, YM
    [J]. NATURE MATERIALS, 2002, 1 (02) : 123 - 128
  • [2] A novel concept for the synthesis of an improved LiFePO4 lithium battery cathode
    Croce, F
    D'Epifanio, A
    Hassoun, J
    Deptula, A
    Olczac, T
    Scrosati, B
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (03) : A47 - A50
  • [3] Effect of structure on the Fe3+/Fe2+ redox couple in iron phosphates
    Padhi, AK
    Nanjundaswamy, KS
    Masquelier, C
    Okada, S
    Goodenough, JB
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (05) : 1609 - 1613
  • [4] Phospho-olivines as positive-electrode materials for rechargeable lithium batteries
    Padhi, AK
    Nanjundaswamy, KS
    Goodenough, JB
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (04) : 1188 - 1194
  • [5] CRYSTAL-CHEMISTRY OF SILICATE MINERALS OF GEOPHYSICAL INTEREST
    PAPIKE, JJ
    CAMERON, M
    [J]. REVIEWS OF GEOPHYSICS, 1976, 14 (01) : 37 - 80
  • [6] Electroactivity of natural and synthetic triphylite
    Ravet, N
    Chouinard, Y
    Magnan, JF
    Besner, S
    Gauthier, M
    Armand, M
    [J]. JOURNAL OF POWER SOURCES, 2001, 97-8 : 503 - 507
  • [7] REVISED EFFECTIVE IONIC-RADII AND SYSTEMATIC STUDIES OF INTERATOMIC DISTANCES IN HALIDES AND CHALCOGENIDES
    SHANNON, RD
    [J]. ACTA CRYSTALLOGRAPHICA SECTION A, 1976, 32 (SEP1): : 751 - 767
  • [8] Hyperfine fields at the Li site in LiFePO4-type olivine materials for lithium rechargeable batteries:: A 7Li MAS NMR and SQUID study
    Tucker, MC
    Doeff, MM
    Richardson, TJ
    Fiñones, R
    Cairns, EJ
    Reimer, JA
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (15) : 3832 - 3833
  • [9] Crystal chemistry of the olivine-type Li(MnyFe1-y)PO4 and (MnyFe1-y)PO4 as possible 4 V cathode materials for lithium batteries
    Yamada, A
    Chung, SC
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (08) : A960 - A967
  • [10] Optimized LiFePO4 for lithium battery cathodes
    Yamada, A
    Chung, SC
    Hinokuma, K
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (03) : A224 - A229
1