Investigation of Al-doping effects on the NaFe0.5Mn0.5O2 cathode for Na-ion batteries

Yongho Kee, Nikolay Dimov, Simon Champet, Duncan H. Gregory, Shigeto Okada

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

P2-Na2/3MO2 materials have recently been investigated as promising high-capacity cathode hosts for Na-ion batteries. On the other hand, the Na-deficiency in these materials precludes a high energy density when coupled with Na-free anodes. As an alternative, O3-NaFeO2 and its various derivatives such as NaFe0.5Mn0.5O2 have been suggested and investigated. In this study, we dope Al in NaFe0.5Mn0.5O2 and investigate Al-doping effects on the electrochemical properties of the Na+ host. The Al-doped compound shows almost the same conductivity and diffusivity as the pristine structure. However, Al-doping enhances O3-P3 phase transition.

Original languageEnglish
Pages (from-to)2245-2248
Number of pages4
JournalIonics
Volume22
Issue number11
DOIs
Publication statusPublished - Nov 1 2016

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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