uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Lithium manganese oxyfluoride as a new cathode material exhibiting oxygen redox
Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England;Univ Oxford, Dept Chem, Parks Rd, Oxford OX1 3PH, England.
Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England;Univ Oxford, Dept Chem, Parks Rd, Oxford OX1 3PH, England.
Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England;Univ Oxford, Dept Chem, Parks Rd, Oxford OX1 3PH, England.
Japan Synchrotron Radiat Res Inst JASRI, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan.
Show others and affiliations
2018 (English)In: Energy & Environmental Science, ISSN 1754-5692, E-ISSN 1754-5706, Vol. 11, no 4, p. 926-932Article in journal (Refereed) Published
Abstract [en]

The quantity of charge stored in transition metal oxide intercalation cathodes for Li or Na batteries is not limited by transition metal redox reactions but can also access redox reactions on O; examples include Li1.2Ni0.13Mn0.54Co0.13O2, Li2Ru0.75Sn0.25O3, Li1.2Nb0.3Mn0.4O2, Na2RuO3 and Na2/3Mg0.28Mn0.72O2. Here we show that oxyfluorides can also exhibit charge storage by O-redox. We report the discovery of lithium manganese oxyfluoride, specifically the composition, Li1.9Mn0.95O2.05F0.95, with a high capacity to store charge of 280 mA h g(-1) (corresponding to 960 W h kg(-1)) of which almost half, 130 mA h g(-1), arises from O-redox. This material has a disordered cubic rocksalt structure and the voltage-composition curve is significantly more reversible compared with ordered Li-rich layered cathodes. Unlike lithium manganese oxides such as the ordered layered rocksalt Li2MnO3, Li1.9Mn0.95O2.05F0.95 does not exhibit O loss from the lattice. The material is synthesised using a simple, one-pot mechanochemical procedure.

Place, publisher, year, edition, pages
2018. Vol. 11, no 4, p. 926-932
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-354239DOI: 10.1039/c7ee03195eISI: 000430537000017OAI: oai:DiVA.org:uu-354239DiVA, id: diva2:1229141
Available from: 2018-06-29 Created: 2018-06-29 Last updated: 2018-06-29Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Massel, FelixDuda, Laurent

Search in DiVA

By author/editor
Massel, FelixDuda, Laurent
By organisation
Molecular and Condensed Matter Physics
In the same journal
Energy & Environmental Science
Materials Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 6 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf