The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Extremely Stable Sodium Metal Batteries Enabled by Localized High-Concentration Electrolytes
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 3 V 2 (PO 4 ) 3 batteries.
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Citations
Cites
Electrolytes and Interphases in Li-Ion Batteries and Beyond
Xu, K. (2014) · Chemical Reviews · doi:10.1021/cr500003w · Cited by 5,566
“Water-in-salt” electrolyte enables high-voltage aqueous lithium-ion chemistries
Suo, L., Borodin, O., Gao, T., Olguin, M., Ho, J., Fan, X., Luo, C., Wang, C., & Xu, K. (2015) · Science · doi:10.1126/science.aab1595 · Cited by 3,821
High rate and stable cycling of lithium metal anode
Qian, J., Henderson, W. A., Xu, W., Bhattacharya, P., Engelhard, M., Borodin, O., & Zhang, J.-G. (2015) · Nature Communications · doi:10.1038/ncomms7362 · Cited by 2,561
Self-citation
Cited by
High-Efficiency Lithium Metal Batteries with Fire-Retardant Electrolytes
Chen, S., Zheng, J., Yu, L., Ren, X., Engelhard, M. H., Niu, C., Lee, H., Xu, W., Xiao, J., Liu, J., et al. (2018) · Joule · doi:10.1016/j.joule.2018.05.002 · Cited by 654
Self-citationLocalized high concentration electrolyte behavior near a lithium–metal anode surface
Zheng, Y., Soto, F. A., Ponce, V., Seminario, J. M., Cao, X., Zhang, J.-G., & Balbuena, P. B. (2019) · Journal of Materials Chemistry A · doi:10.1039/c9ta08935g · Cited by 123
Self-citationNa-k liquid alloy: A review on wettability enhancement and ionic carrier selection mechanism
Li, X., Liu, J., Chen, C., Yang, J., Xu, Z., Wu, M., Wang, Y., & Karim, Z. (2021) · Chinese Chemical Letters · doi:10.1016/j.cclet.2020.09.018 · Cited by 12
Metadata
- Authors
- Zheng, J., Chen, S., Zhao, W., Song, J., Engelhard, M. H., & Zhang, J.-G.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-01-09
- Volume
- 3
- Issue
- 2
- Pages
- 315-321
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2781895724
- Cited by
- 579
- References
- 3
- FWCI
- 19.29
- Type
- journal article
- Language
- en
- Open access
- closed
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