Identification and characterisation of high energy density P2-type Na2/3[Ni1/3−y/2Mn2/3−y/2Fey]O2 compounds for Na-ion batteries

Somerville, James W. and House, Rob A and Tapia-Ruiz, Nuria and Sobkowiak, Adam and Ramos, Silvia and Chadwick, Alan V. and Roberts, Matthew R. and Maitra, Urmimala and Bruce, Peter G. (2018) Identification and characterisation of high energy density P2-type Na2/3[Ni1/3−y/2Mn2/3−y/2Fey]O2 compounds for Na-ion batteries. Journal of Materials Chemistry. ISSN 0959-9428

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Abstract

The composition space between MnO2, NaFeO2, and Na[Ni1/2Mn1/2]O2 has been explored with the goal of identifying Earth-abundant single-phase P2 cathode materials. This has led to the identification of two compounds, P2-Na2/3[Ni1/3−y/2Mn2/3−y/2Fey]O2 (y = 1/6, 1/3) which exhibit state of the art specific energies. These materials were further evaluated through galvanostatic cycling and X-ray absorption spectroscopy.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Materials Chemistry
Additional Information:
© Royal Society of Chemistry 2018
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600
Subjects:
ID Code:
123803
Deposited By:
Deposited On:
28 Feb 2018 09:32
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Sep 2020 04:40