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

13th International Conference on Muon Spin Rotation, Relaxation and Resonance

Månsson, M.^1,2 ; Nozaki, H.^3 ; Wikberg, J.M.^4 ; Pra, K.^1,5 ; Sassa, Y.^5 ; Dahbi, M.^6 ; Kamazawa, K.^7 ; Sedlak, K.^8 ; Watanabe, I.^9 ; Sugiyama, J.^3

Laboratory for Quantum Magnetism, École Polytechnique Fédérate de Lausanne (EPFL), Lausanne

CH-1015, Switzerland^1

Lab. for Neutron Scattering and Imaging, Paul Scherrer Institute, Villigen PSI

CH-5232, Switzerland^2

Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi

480-1192, Japan^3

Department of Physics and Astronomy, Molecular and Condensed Matter Physics, Uppsala University, Box 516, Uppsala

S-75120, Sweden^4

Laboratory for Solid State Physics, ETH Zürich, Zürich

CH-8093, Switzerland^5

Department of Chemistry, Ångström Laboratory, Uppsala University, Box 538, Uppsala

S-75121, Sweden^6

Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaragi

319-1106, Japan^7

Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, Villigen PSI

CH-5232, Switzerland^8

Advanced Meson Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama

351-0198, Japan^9

关键词: Arrhenius-type equation;    Cath-ode materials;    Diffusion process;    High temperature;    Lithium diffusion;    Lithium ion diffusion;    Low temperatures;    Muon spin rotation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/551/1/012037/pdf
DOI  :  10.1088/1742-6596/551/1/012037

来源: IOP

【 摘 要 】

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.