Extremely Stable Sodium Metal Batteries Enabled by Localized High-Concentration Electrolytes
Publication type: Journal Article
Publication date: 2018-01-09
scimago Q1
wos Q1
SJR: 6.799
CiteScore: 29.6
Impact factor: 18.2
ISSN: 23808195
Materials Chemistry
Chemistry (miscellaneous)
Energy Engineering and Power Technology
Fuel Technology
Renewable Energy, Sustainability and the Environment
Abstract
Sodium (Na) metal is a promising anode for Na-ion batteries. However, the high reactivity of Na metal with electrolytes and the low Na metal cycling efficiency have limited its practical application in rechargeable Na metal batteries. High-concentration electrolytes (HCE, ≥4 M) consisting of sodium bis(fluorosulfonyl)imide (NaFSI) and ether solvent could ensure the stable cycling of Na metal with high Coulombic efficiency but at the cost of high viscosity, poor wettability, and high salt cost. Here, we report that the salt concentration could be significantly reduced (≤1.5 M) by a hydrofluoroether as an “inert” diluent, which maintains the solvation structures of HCE, thereby forming a localized high-concentration electrolyte (LHCE). A LHCE [2.1 M NaFSI/1,2-dimethoxyethane (DME)–bis(2,2,2-trifluoroethyl) ether (BTFE) (solvent molar ratio 1:2)] enables dendrite-free Na deposition with a high Coulombic efficiency of >99%, fast charging (20C), and stable cycling (90.8% retention after 40 000 cycles) of Na∥Na...
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508
Total citations:
508
Citations from 2024:
156
(30.77%)
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GOST
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Zheng J. et al. Extremely Stable Sodium Metal Batteries Enabled by Localized High-Concentration Electrolytes // ACS Energy Letters. 2018. Vol. 3. No. 2. pp. 315-321.
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Zheng J., Chen S., Zhao W., Song J., Engelhard M., Zhang J. Extremely Stable Sodium Metal Batteries Enabled by Localized High-Concentration Electrolytes // ACS Energy Letters. 2018. Vol. 3. No. 2. pp. 315-321.
Cite this
RIS
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TY - JOUR
DO - 10.1021/acsenergylett.7b01213
UR - https://doi.org/10.1021/acsenergylett.7b01213
TI - Extremely Stable Sodium Metal Batteries Enabled by Localized High-Concentration Electrolytes
T2 - ACS Energy Letters
AU - Zheng, Jianming
AU - Chen, Shuru
AU - Zhao, Wengao
AU - Song, Junhua
AU - Engelhard, Mark
AU - Zhang, Ji-Guang
PY - 2018
DA - 2018/01/09
PB - American Chemical Society (ACS)
SP - 315-321
IS - 2
VL - 3
SN - 2380-8195
ER -
Cite this
BibTex (up to 50 authors)
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@article{2018_Zheng,
author = {Jianming Zheng and Shuru Chen and Wengao Zhao and Junhua Song and Mark Engelhard and Ji-Guang Zhang},
title = {Extremely Stable Sodium Metal Batteries Enabled by Localized High-Concentration Electrolytes},
journal = {ACS Energy Letters},
year = {2018},
volume = {3},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/acsenergylett.7b01213},
number = {2},
pages = {315--321},
doi = {10.1021/acsenergylett.7b01213}
}
Cite this
MLA
Copy
Zheng, Jianming, et al. “Extremely Stable Sodium Metal Batteries Enabled by Localized High-Concentration Electrolytes.” ACS Energy Letters, vol. 3, no. 2, Jan. 2018, pp. 315-321. https://doi.org/10.1021/acsenergylett.7b01213.