Anisotropic crystallite size distributions in LiFePO4 powders

被引：4
|
作者：
Bobyl, Alexander [1 ]
Kasatkin, Igor [2 ]
机构：
[1] Ioffe Inst, Politekhnicheskaya Ul 26, St Petersburg 194021, Russia
[2] St Petersburg State Univ, Univ Skaya Nab 7-9, St Petersburg 199034, Russia
来源：
RSC ADVANCES | 2021年 / 11卷 / 23期
关键词：
X-RAY-DIFFRACTION; CATHODE MATERIAL; GRAIN-BOUNDARY; PHASE; PERFORMANCE; STRAIN; 1ST-PRINCIPLES; INTERCALATION; DEPENDENCE; PHOSPHATE;
D O I：
10.1039/d1ra02102h
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The anisotropic crystallite sizes in high-performance LiFePO4 powders were measured by XRD and compared with the particle sizes found by TEM image analysis. Lognormal particle size distribution functions were determined for all three main crystallographic axes. A procedure was developed to determine the fraction of the composite particles which consists of several crystallites and contains small- and large-angle boundaries. In a sample with the most anisotropic crystallites (ratio of volume-weighted mean crystallite sizes L-V[001]/L-V[010] = 1.41) the number of the composite particles was at least 30%.
引用
收藏
页码：13799 / 13805
页数：7
相关论文
共 50 条
  • [1] Size effects on carbon-free LiFePO4 powders
    Delacourt, C.
    Poizot, P.
    Levasseur, S.
    Masquelier, C.
    ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (07) : A352 - A355
  • [2] Preparation of LiFePO4/C Composite Powders
    Li Guo-jun
    Yang Ming
    Jing Hai-li
    Ren Rui-ming
    CHEMICAL ENGINEERING AND MATERIAL PROPERTIES, PTS 1 AND 2, 2012, 391-392 : 377 - +
  • [3] Anisotropic lithium ion migration in LiFePO4
    S. B. Park
    C. K. Park
    J. T. Hwang
    W. I. Cho
    H. Jang
    Metals and Materials International, 2011, 17 : 1017 - 1020
  • [4] Anisotropic Lithium ion Migration in LiFePO4
    Park, S. B.
    Park, C. K.
    Hwang, J. T.
    Cho, W. I.
    Jang, H.
    METALS AND MATERIALS INTERNATIONAL, 2011, 17 (06) : 1017 - 1020
  • [5] Effects of doping on the electrical conductivity and particle size in olivine type LiFePO4 powders
    Bai, Jin-Tao
    Ha, Jung-Soo
    Kim, Chang-Sam
    JOURNAL OF THE KOREAN CRYSTAL GROWTH AND CRYSTAL TECHNOLOGY, 2008, 18 (06): : 248 - 252
  • [6] Synthesis and characterization of LiFePO4/PPy composite powders
    Ren, Xiang-Zhong
    Li, Xi
    Zhang, Pei-Xin
    Liu, Jian-Hong
    Zhang, Qian-Ling
    Luo, Zhong-Kuan
    POWDER TECHNOLOGY AND APPLICATION, 2009, 58 : 205 - 210
  • [7] Preparation of LiFePO4 powders by co-precipitation
    Yang, MR
    Ke, WH
    Wu, SH
    JOURNAL OF POWER SOURCES, 2005, 146 (1-2) : 539 - 543
  • [8] The Effect of LiFePO4 Particle Size and Surface Area on the Performance of LiFePO4/Graphite Cells
    Logan, E. R.
    Eldesoky, A.
    Liu, Y.
    Lei, Min
    Yang, Xinhe
    Hebecker, H.
    Luscombe, A.
    Johnson, Michel B.
    Dahn, J. R.
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2022, 169 (05)
  • [9] Reducing the particle size of LiFePO4 enabled by yeast
    Liang, Hongyu
    Zhang, Lianhong
    RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2013, 49 (10) : 960 - 962
  • [10] Reducing the particle size of LiFePO4 enabled by yeast
    Hongyu Liang
    Lianhong Zhang
    Russian Journal of Electrochemistry, 2013, 49 : 960 - 962
12345