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Oxygen redox reactions in Li ion battery electrodes studied by resonant inelastic X-ray scattering
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Molecular and Condensed Matter Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry. (Strukturkemi)ORCID iD: 0000-0003-4440-2952
2017 (English)In: Journal of Electron Spectroscopy and Related Phenomena, ISSN 0368-2048, E-ISSN 1873-2526, Vol. 221, 79-87 p.Article in journal (Refereed) Published
Abstract [en]

We present results using inelastic scattering x-ray spectroscopy (RIXS) combined with x-ray absorption spectroscopy on Li ion battery cathode and anode materials, respectively. In particular, we discuss results obtained on the cathode materials Li1.2[Ni0.13Co0.133Mn0.544]O2 and Lix[Ni0.65Co0.25Mn0.1]O2 as well as in the composite anode material Ni0.5TiOPO4/C. We show that oxygen redox reactions are an important aspect of many such systems and how one can succesfully address them using RIXS. New insights on the formation of new oxygen species and on the details of cycling-induced structural disorder can be detected. We foresee a particular future focus on these issues considering the rapid development of new in operando RIXS techniques for Li ion battery research.

Place, publisher, year, edition, pages
2017. Vol. 221, 79-87 p.
National Category
Atom and Molecular Physics and Optics
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URN: urn:nbn:se:uu:diva-337713DOI: 10.1016/j.elspec.2017.06.003OAI: oai:DiVA.org:uu-337713DiVA: diva2:1170594
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Available from: 2018-01-03 Created: 2018-01-03 Last updated: 2018-01-03

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