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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, J.W., Tapia-Ruiz, N., Sobkowiak, A., House, R., Ramos, S., Chadwick, A.V., Roberts, M., Maitra, U., Bruce, P.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 A, 6 (13). pp. 5231-5462. ISSN 2050-7488. (doi:10.1039/C7TA09607K)

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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: Article
DOI/Identification number: 10.1039/C7TA09607K
Uncontrolled keywords: Physics of Quantum Materials
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Alan Chadwick
Date Deposited: 26 Feb 2018 09:44 UTC
Last Modified: 17 Jul 2019 10:00 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/66135 (The current URI for this page, for reference purposes)
Ramos, S.: https://orcid.org/0000-0003-2725-7706
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