Development and application of nonequilibrium simulation program for ion diffusion in battery

Changho Jung, Hideaki Morito, Yasunori Kobayashi, Ken Suzuki, Seiichi Takami, Momoji Kubo, Akira Miyamoto

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The regular molecular dynamics method cannot simulate the ion concentration gradient system because the number of particles in the system is constant during the simulation. In the present study, in order to overcome the above problem, we developed a new nonequilibrium molecular dynamics simulation program, which can be applied to the concentration gradient system, such as the ion diffusion in the solid state ionics materials. Moreover, we applied our new program to the LiCoO2 system that has been used as a cathode material of the lithium battery. The new program succeeded to reproduce the lithium ion diffusion process from the higher concentration area to the lower concentration area and, hence, we confirmed the high ability of our new program to the simulation of the ion concentration gradient system.

Original languageEnglish
Pages (from-to)279-284
Number of pages6
JournalSolid State Ionics
Volume152-153
DOIs
Publication statusPublished - 2002 Dec 1

Keywords

  • Cathode materials
  • LiCoO
  • Lithium secondary battery
  • Nonequilibrium molecular dynamics

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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