DOI: 10.1038/ncomms11722. A stable room-temperature sodium

A stable room-temperature sodium–sulfur battery

10.1038/ncomms11722

Crossref journal-article

Springer Science and Business Media LLC

Nature Communications (297)

Abstract

AbstractHigh-energy rechargeable batteries based on earth-abundant materials are important for mobile and stationary storage technologies. Rechargeable sodium–sulfur batteries able to operate stably at room temperature are among the most sought-after platforms because such cells take advantage of a two-electron-redox process to achieve high storage capacity from inexpensive electrode materials. Here we report a room-temperature sodium–sulfur battery that uses a microporous carbon–sulfur composite cathode, and a liquid carbonate electrolyte containing the ionic liquid 1-methyl-3-propylimidazolium-chlorate tethered to SiO2 nanoparticles. We show that these cells can cycle stably at a rate of 0.5 C (1 C=1675, mAh g−1) with 600 mAh g−1 reversible capacity and nearly 100% Coulombic efficiency. By means of spectroscopic and electrochemical analysis, we find that the particles form a sodium-ion conductive film on the anode, which stabilizes deposition of sodium. We also find that sulfur remains interred in the carbon pores and undergo solid-state electrochemical reactions with sodium ions.

Bibliography

Wei, S., Xu, S., Agrawral, A., Choudhury, S., Lu, Y., Tu, Z., Ma, L., & Archer, L. A. (2016). A stable room-temperature sodiumâsulfur battery. Nature Communications, 7(1).

Authors 8

Shuya Wei (first)
Shaomao Xu (additional)
Akanksha Agrawral (additional)
Snehashis Choudhury (additional)
Yingying Lu (additional)
Zhengyuan Tu (additional)
Lin Ma (additional)
Lynden A. Archer (additional)

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Dates

Type	When
Created	9 years, 2 months ago (June 9, 2016, 9:52 a.m.)
Deposited	2 years, 7 months ago (Jan. 4, 2023, 6:29 a.m.)
Indexed	1 day, 15 hours ago (Aug. 23, 2025, 1:13 a.m.)
Issued	9 years, 2 months ago (June 9, 2016)
Published	9 years, 2 months ago (June 9, 2016)
Published Online	9 years, 2 months ago (June 9, 2016)

Funders 0

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BibTeX

@article{Wei_2016, title={A stable room-temperature sodium–sulfur battery}, volume={7}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms11722}, DOI={10.1038/ncomms11722}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Wei, Shuya and Xu, Shaomao and Agrawral, Akanksha and Choudhury, Snehashis and Lu, Yingying and Tu, Zhengyuan and Ma, Lin and Archer, Lynden A.}, year={2016}, month=jun }

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  "abstract": "<jats:title>Abstract</jats:title><jats:p>High-energy rechargeable batteries based on earth-abundant materials are important for mobile and stationary storage technologies. Rechargeable sodium\u2013sulfur batteries able to operate stably at room temperature are among the most sought-after platforms because such cells take advantage of a two-electron-redox process to achieve high storage capacity from inexpensive electrode materials. Here we report a room-temperature sodium\u2013sulfur battery that uses a microporous carbon\u2013sulfur composite cathode, and a liquid carbonate electrolyte containing the ionic liquid 1-methyl-3-propylimidazolium-chlorate tethered to SiO<jats:sub>2</jats:sub> nanoparticles. We show that these cells can cycle stably at a rate of 0.5\u2009C (1\u2009C=1675, mAh\u2009g<jats:sup>\u22121</jats:sup>) with 600\u2009mAh\u2009g<jats:sup>\u22121</jats:sup> reversible capacity and nearly 100% Coulombic efficiency. By means of spectroscopic and electrochemical analysis, we find that the particles form a sodium-ion conductive film on the anode, which stabilizes deposition of sodium. We also find that sulfur remains interred in the carbon pores and undergo solid-state electrochemical reactions with sodium ions.</jats:p>",
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