Nano-tube-like surface structure in graphite anodes for lithium-ion secondary batteries

Koji Moriguchi, Yutaka Itoh, Shinji Munetoh, Kazuhito Kamei, Masaru Abe, Atsuo Omaru, Masayuki Nagamine

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report microstructures on the surface of graphite particles found in practicable carbon anodes by means of high-resolution transmission electron microscopy. The surfaces consist of "closed-edge" structures constructed in a similar manner as carbon nano-tube. We have also investigated the formation mechanism of these nano-structures using molecular dynamics simulations based on the Tersoff potential. From electrochemical measurements, the carbon anodes composed of these "closed-edge" structures show actually high battery performance with a large discharge capacity and a small irreversible capacity.

Original languageEnglish
Pages (from-to)127-129
Number of pages3
JournalPhysica B: Condensed Matter
Volume323
Issue number1-4
DOIs
Publication statusPublished - 2002 Oct
Externally publishedYes

Keywords

  • Carbon nanotubes
  • Graphite anodes
  • Lithium-ion secondary battery
  • Surface structure

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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  • Cite this

    Moriguchi, K., Itoh, Y., Munetoh, S., Kamei, K., Abe, M., Omaru, A., & Nagamine, M. (2002). Nano-tube-like surface structure in graphite anodes for lithium-ion secondary batteries. Physica B: Condensed Matter, 323(1-4), 127-129. https://doi.org/10.1016/S0921-4526(02)00874-8