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Stable cycling of Na metal anodes in a carbonate electrolyte

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Abstract

It is significantly challenging to stabilize sodium metal anodes in carbonate electrolytes. Here, we report that a sodium metal anode can achieve a high coulombic efficiency of up to ∼97% over 400 cycles at 0.1 mA cm−2 in a carbonate electrolyte with NaAsF6 as an additive. It is revealed that the SEI layer contains a large amount of NaF and O–As–O polymer which enables the stable cycling of sodium metal anodes.

Graphical abstract: Stable cycling of Na metal anodes in a carbonate electrolyte

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Publication details

The article was received on 21 Sep 2019, accepted on 06 Nov 2019 and first published on 06 Nov 2019


Article type: Communication
DOI: 10.1039/C9CC07419H
Chem. Commun., 2019, Advance Article

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    Stable cycling of Na metal anodes in a carbonate electrolyte

    S. Wang, W. Cai, Z. Sun, F. Huang, Y. Jie, Y. Liu, Y. Chen, B. Peng, R. Cao, G. Zhang and S. Jiao, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC07419H

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