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Battery Materials Research with Muon Beam
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2019 (English)In: Proceedings of the 3rd International Symposium of Quantum Beam Science at Ibaraki University "Quantum Beam Science in Biology and Soft Materials (ISQBSS2018), Physical society of Japan, 2019, Vol. 25, article id 011009Conference paper, Published paper (Refereed)
Abstract [en]

We applied a positive muon spin rotation and relaxation (μ+SR) technique to battery materials research by investigating Li diffusion in cathode and electrolyte materials. Recently, we have found that Li diffusion in graphite, which is commonly used as an anode material in Li-ion batteries, is detectable with μ+SR. Following upon the initial μ+SR measurements on the Li intercalated graphites, C6Li and C12Li, μ+SR spectra were also measured for C12Li0.92 and C18Li0.90 posing a slightly different occupancy in the same stage structure as those of C6Li and C12Li. The temperature dependence of diffusive nature in C12Li0.92 and C18Li0.90 was found to be similar in nature to those in C6Li and C12Li. Such a diffusion was found to start to occur approximately by 50 K lower than those of C6Li and C12Li. This suggests that Li starts to diffuse at lower temperatures in the nonstoichiometric Li intercalated graphite samples than that in the stoichiometric samples.

Place, publisher, year, edition, pages
Physical society of Japan, 2019. Vol. 25, article id 011009
Series
JPS Conference Proceedings ; 25
National Category
Condensed Matter Physics
Research subject
Physics, Material and Nano Physics
Identifiers
URN: urn:nbn:se:kth:diva-267249DOI: 10.7566/JPSCP.25.011009OAI: oai:DiVA.org:kth-267249DiVA, id: diva2:1391629
Conference
the 3rd International Symposium of Quantum Beam Science at Ibaraki University "Quantum Beam Science in Biology and Soft Materials (ISQBSS2018)"
Note

QC 20200205

Available from: 2020-02-05 Created: 2020-02-05 Last updated: 2020-02-05Bibliographically approved

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Forslund, Ola KenjiMånsson, Martin
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