STEM characterization for lithium-ion battery cathode materials

Rong Huang, Yuichi Ikuhara

    Research output: Contribution to journalReview articlepeer-review

    64 Citations (Scopus)

    Abstract

    This article briefly reviews the status and new progress on the characterization of popular cathode materials for lithium-ion batteries by scanning transmission electron microscopy (STEM) and presents some of our own research work in this field, especially the direct observation of light elements such as Li and H with atomic resolution using the annular bright-field imaging (ABF) technique. These results demonstrate that STEM combined with high-angle annular dark-field imaging, electron energy-loss spectroscopy (EELS) and ABF imaging is a powerful tool for investigation of the atomic level microstructure of various cathode materials and resolving many fundamental issues in the battery related research field and industries, such as the mechanism of capacity fading and diffusion behavior across the interface between electrode and electrolyte.

    Original languageEnglish
    Pages (from-to)31-38
    Number of pages8
    JournalCurrent Opinion in Solid State and Materials Science
    Volume16
    Issue number1
    DOIs
    Publication statusPublished - 2012 Feb

    Keywords

    • ABF
    • Cathode materials
    • EELS
    • HAADF
    • Lithium-ion battery
    • Microstructure
    • STEM

    ASJC Scopus subject areas

    • Materials Science(all)

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