HPO32- as a building unit for sodium-ion battery cathodes: 3.1 v operation of Na2-xFe(HPO3)2 (0 < x < 1)

Zihan Ma, Laura Lander, Shin Ichi Nishimura, Masashi Okubo, Atsuo Yamada

Research output: Contribution to journalArticlepeer-review

Abstract

We report Na2Fe(HPO3)2 as the first HPO32--based iron(ii) cathode material for sodium-ion batteries, which delivers a reversible capacity of approximately 100 mA h g-1 at an average reaction voltage of 3.1 V. In situ X-ray diffraction and ex situ57Fe Mössbauer spectroscopy clarify reversible (de)sodiation associated with the Fe3+/Fe2+ redox reaction.

Original languageEnglish
Pages (from-to)14155-14157
Number of pages3
JournalChemical Communications
Volume55
Issue number94
DOIs
Publication statusPublished - 2019
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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