---
_id: '7291'
abstract:
- lang: eng
text: Na battery chemistries show poor passivation behavior of low voltage Na storage
compounds and Na metal with organic carbonate‐based electrolytes adopted from
Li‐ion batteries. Therefore, a suitable electrolyte remains a major challenge
for establishing Na batteries. Here we report highly concentrated sodium bis(fluorosulfonyl)imide
(NaFSI) in dimethoxyethane (DME) electrolytes and investigate them for Na metal
and hard carbon anodes and intercalation cathodes. For a DME/NaFSI ratio of 2,
a stable passivation of anode materials was found owing to the formation of a
stable solid electrolyte interface, which was characterized spectroscopically.
This permitted non‐dentritic Na metal cycling with approximately 98 % coulombic
efficiency as shown for up to 300 cycles. The NaFSI/DME electrolyte may enable
Na‐metal anodes and allows for more reliable assessment of electrode materials
in Na‐ion half‐cells, as is demonstrated by comparing half‐cell cycling of hard
carbon anodes and Na3V2(PO4)3 cathodes with a widely used carbonate and the NaFSI/DME
electrolyte.
article_processing_charge: No
article_type: original
author:
- first_name: Lukas
full_name: Schafzahl, Lukas
last_name: Schafzahl
- first_name: Ilie
full_name: Hanzu, Ilie
last_name: Hanzu
- first_name: Martin
full_name: Wilkening, Martin
last_name: Wilkening
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
citation:
ama: Schafzahl L, Hanzu I, Wilkening M, Freunberger SA. An electrolyte for reversible
cycling of sodium metal and intercalation compounds. ChemSusChem. 2017;10(2):401-408.
doi:10.1002/cssc.201601222
apa: Schafzahl, L., Hanzu, I., Wilkening, M., & Freunberger, S. A. (2017). An
electrolyte for reversible cycling of sodium metal and intercalation compounds.
ChemSusChem. Wiley. https://doi.org/10.1002/cssc.201601222
chicago: Schafzahl, Lukas, Ilie Hanzu, Martin Wilkening, and Stefan Alexander Freunberger.
“An Electrolyte for Reversible Cycling of Sodium Metal and Intercalation Compounds.”
ChemSusChem. Wiley, 2017. https://doi.org/10.1002/cssc.201601222.
ieee: L. Schafzahl, I. Hanzu, M. Wilkening, and S. A. Freunberger, “An electrolyte
for reversible cycling of sodium metal and intercalation compounds,” ChemSusChem,
vol. 10, no. 2. Wiley, pp. 401–408, 2017.
ista: Schafzahl L, Hanzu I, Wilkening M, Freunberger SA. 2017. An electrolyte for
reversible cycling of sodium metal and intercalation compounds. ChemSusChem. 10(2),
401–408.
mla: Schafzahl, Lukas, et al. “An Electrolyte for Reversible Cycling of Sodium Metal
and Intercalation Compounds.” ChemSusChem, vol. 10, no. 2, Wiley, 2017,
pp. 401–08, doi:10.1002/cssc.201601222.
short: L. Schafzahl, I. Hanzu, M. Wilkening, S.A. Freunberger, ChemSusChem 10 (2017)
401–408.
date_created: 2020-01-15T12:15:29Z
date_published: 2017-01-20T00:00:00Z
date_updated: 2021-01-12T08:12:48Z
day: '20'
doi: 10.1002/cssc.201601222
extern: '1'
intvolume: ' 10'
issue: '2'
language:
- iso: eng
month: '01'
oa_version: None
page: 401-408
publication: ChemSusChem
publication_identifier:
issn:
- 1864-5631
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: An electrolyte for reversible cycling of sodium metal and intercalation compounds
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2017'
...