Li Diffusion in LixCoO2 Probed by Muon-Spin Spectroscopy

Jun Sugiyama, Kazuhiko Mukai, Yutaka Ikedo, Hiroshi Nozaki, Martin Månsson, and Isao Watanabe
Phys. Rev. Lett. 103, 147601 – Published 30 September 2009

Abstract

The diffusion coefficient of Li+ ions (DLi) in the battery material LixCoO2 has been investigated by muon-spin relaxation (μ+SR). Based on experiments in zero and weak longitudinal fields at temperatures up to 400 K, we determined the fluctuation rate (ν) of the fields on the muons due to their interaction with the nuclear moments. Combined with susceptibility data and electrostatic potential calculations, clear Li+ ion diffusion was detected above 150K. The DLi estimated from ν was in very good agreement with predictions from first-principles calculations, and we present the μ+SR technique as an optimal probe to detect DLi for materials containing magnetic ions.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 16 June 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.147601

©2009 American Physical Society

Authors & Affiliations

Jun Sugiyama1,*, Kazuhiko Mukai1, Yutaka Ikedo1,†, Hiroshi Nozaki1, Martin Månsson2, and Isao Watanabe3

  • 1Toyota Central Research and Development Laboratories Inc., Nagakute, Aichi 480-1192 Japan
  • 2Laboratory for Neutron Scattering, ETH Zürich and Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
  • 3Muon Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

  • *e0589@mosk.tytlabs.co.jp
  • Present address: Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Japan.

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 103, Iss. 14 — 2 October 2009

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×