Lithium Diffusion & Magnetism in Battery Cathode Material LixNi1/3Co1/3Mn1/3O2

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...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 551; no. 1
Main Authors Månsson, M, Nozaki, H, Wikberg, J M, Prsa, K, Sassa, Y, Dahbi, M, Kamazawa, K, Sedlak, K, Watanabe, I, Sugiyama, J
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 16.12.2014
Subjects
Cathodes
Electrode materials
High temperature
Ion diffusion
Lithium
Lithium ions
Low temperature
Magnetic properties
Muon spin relaxation
Muon spin rotation
Physics
Rechargeable batteries
Spin glasses
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Summary: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 [v(T)] starts to increase exponentially. Further, v(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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/551/1/012037