Functions of low crystallinity in lithium-rich positive electrode

DOI
  • OISHI Masatsugu
    Tokushima University
  • HIROI Satoshi
    Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI)
  • OHARA Koji
    Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI)

Bibliographic Information

Other Title
  • リチウム過剰系正極材料の低結晶性の機能

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Description

<p>Intensive research is being conducted to further improve the performance of lithium-ion secondary batteries. Conventional cathode materials exhibit excellent charge-discharge cycle characteristics because only Li ions are extracted and inserted while maintaining the crystalline structure of the material. On the other hand, lithium-rich layered oxide (LLO) materials with high energy density have achieved extraction/insertion of a large amount of Li ions with a low crystalline structure. This paper introduces an example of research that clarified the existence of a low-crystal structure in LLO formed by the crystal structure change accompanying the migration of pillar metal ions that support the Li deficient layer during extraction of Li-ions revealed by a pair distribution function analysis.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 92 (1), 35-39, 2023-01-01

    The Japan Society of Applied Physics

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Details 詳細情報について

  • CRID
    1390294643565904512
  • DOI
    10.11470/oubutsu.92.1_35
  • ISSN
    21882290
    03698009
  • Text Lang
    ja
  • Article Type
    journal article
  • Data Source
    • JaLC
    • KAKEN
  • Abstract License Flag
    Disallowed

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