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., House, R.A., Tapia-Ruiz, N., Sobkowiak, A., Ramos, S., Chadwick, A.V., Roberts, M.R., 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. 5271-5275. ISSN 2050-7488. (doi:10.1039/C7TA09607K)

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 > QD473 Physical properties in relation to structure
Divisions:	Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User:	Silvia Ramos
Date Deposited:	29 May 2019 11:14 UTC
Last Modified:	17 Jul 2019 10:00 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/74165 (The current URI for this page, for reference purposes)