We have studied low-temperature magnetic properties as well as high-temperature lithium ion diffusion in the battery cathode materials LixNi1/3Co1/3Mn1/3O2 by the use of muon spin rotation/relaxation. Our data reveal that the samples enter into a 2D spin-glass state below TSG=12 K. We further show that lithium diffusion channels become active for T>Tdiff=125 K where the Li-ion hopping-rate [nu(T)] starts to increase exponentially. Further, nu(T) is found to fit very well to an Arrhenius type equation and the activation energy for the diffusion process is extracted as Ea=100 meV.
@article{arxiv.1406.3985,
title = {Lithium Diffusion & Magnetism in Battery Cathode Material LixNi1/3Co1/3Mn1/3O2},
author = {M. Mansson and H. Nozaki and J. M. Wikberg and K. Prsa and Y. Sassa and M. Dahbi and K. Kamazawa and K. Sedlak and I. Watanabe and J. Sugiyama},
journal= {arXiv preprint arXiv:1406.3985},
year = {2015}
}
Comments
Submitted to Journal of Physics: Conference Series (2014)