Properties of NaPF6 electrolytes and effect of electrolyte concentration on performance in sodium-ion batteries

Darren M. C. Ould; Stefan Oswald; Holly E. Smith; Christopher A. O’Keefe; Tengfei Song; Emma Kendrick; Dominic S. Wright; Clare P. Grey

doi:10.1039/D5CC01447F

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Properties of NaPF₆ electrolytes and effect of electrolyte concentration on performance in sodium-ion batteries†

Darren M. C. Ould,^ab Stefan Oswald,

^ab Holly E. Smith,

^a Christopher A. O’Keefe,^a Tengfei Song,^bc Emma Kendrick,

^bc Dominic S. Wright

^ab and Clare P. Grey

*^ab

Author affiliations

* Corresponding authors

^a Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK
E-mail: cpg27@cam.ac.uk

^b The Faraday Institution, Quad One, Harwell Science and Innovation Campus, Didcot, UK

^c School of Metallurgy and Materials, University of Birmingham, Birmingham B15 2TT, UK

Abstract

Sodium-ion batteries offer improved sustainability over lithium-ion batteries, the benchmark electrolyte being 1 M NaPF₆ in carbonate-based solvents. This work investigates the properties of different electrolyte concentrations, finding that 1 M NaPF₆ offers the highest bulk conductivity. However, lower concentrations give comparable cycling performance in sodium-ion coin cells.

This article is part of the themed collection: Chemistry at the Forefront of the Sustainable Energy Transition

Download options Please wait...

Supplementary files

Supplementary information PDF (2459K)

Article information

DOI: https://doi.org/10.1039/D5CC01447F
Article type: Communication
Submitted: 18 Mär 2025
Accepted: 29 Apr 2025
First published: 01 Mai 2025
This article is Open Access

Download Citation

Chem. Commun., 2025, Advance Article

Permissions

Request permissions

Properties of NaPF₆ electrolytes and effect of electrolyte concentration on performance in sodium-ion batteries

D. M. C. Ould, S. Oswald, H. E. Smith, C. A. O’Keefe, T. Song, E. Kendrick, D. S. Wright and C. P. Grey, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC01447F

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Chemical Communications