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Battery Materials Research with Muon Beam
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2019 (Engelska)Ingår i: 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, artikel-id 011009Konferensbidrag, Publicerat paper (Refereegranskat)
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.

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Physical society of Japan, 2019. Vol. 25, artikel-id 011009
Serie
JPS Conference Proceedings ; 25
Nationell ämneskategori
Den kondenserade materiens fysik
Forskningsämne
Fysik, Material- och nanofysik
Identifikatorer
URN: urn:nbn:se:kth:diva-267249DOI: 10.7566/JPSCP.25.011009OAI: oai:DiVA.org:kth-267249DiVA, id: diva2:1391629
Konferens
the 3rd International Symposium of Quantum Beam Science at Ibaraki University "Quantum Beam Science in Biology and Soft Materials (ISQBSS2018)"
Anmärkning

QC 20200205

Tillgänglig från: 2020-02-05 Skapad: 2020-02-05 Senast uppdaterad: 2020-02-05Bibliografiskt granskad

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Forslund, Ola KenjiMånsson, Martin

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