Stabilization of sodium metal anodes by dual-salt high concentration electrolyte

doi:10.19799/j.cnki.2095-4239.2021.0694

Abstract

Abstract:

Sodium (Na) metal has been regarded as a promising anode candidate for next-generation batteries with high energy density and power density. The Na metal anode, however, suffers from poor cycling stability and safety hazards associated with Na dendrite growth. To enhance cycling stability, sodium bis(fluorosulfonyl)imide (NaFSI) and sodium trifluoromethanesulfonimide (NaTFSI) were tested as a mixed dual salt in a series of high-concentration electrolytes, with diglyme (G2) as solvent. A NaFSI-NaTFSI high-concentration electrolyte considerably enhanced the cycling stability of Na metal anodes compared with single-salt electrolytes. Electrochemical performance and morphologies of the cycled Na metal anode indicate that the high-concentration dual-salt electrolyte could inhibit corrosion of the current collector and generate stable interfaces on the anodes. Na metal full cells coupled with a Na₃V₂(PO₄)₂F₃ (NVPF) cathode in the optimal dual-salt high-concentration electrolyte have also been realized with stable cycling. This demonstrates the feasibility of this approach for practical applications in sodium metal batteries.

Key words: dual salt, high-concentration, electrolyte, Na metal anode, sodium metal batteries

CLC Number:

TM 911

Ying TAO, Lingfei ZHAO, Yunxiao WANG, Yuliang CAO, Shulei CHOU. Stabilization of sodium metal anodes by dual-salt high concentration electrolyte[J]. Energy Storage Science and Technology, 2022, 11(4): 1103-1109.

Figures/Tables 4

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References 18

1	YAMADA Y, YAMADA A. Review—superconcentrated electrolytes for lithium batteries[J]. Journal of the Electrochemical Society, 2015, 162(14): A2406-A2423.
2	MUÑOZ-MÁRQUEZ M Á, SAUREL D, GÓMEZ-CÁMER J L, et al. Na-ion batteries for large scale applications: A review on anode materials and solid electrolyte interphase formation[J]. Advanced Energy Materials, 2017, 7(20): doi: 10.1002/aenm.201700463.
3	ZHAO L F, HU Z, LAI W H, et al. Hard carbon anodes: Fundamental understanding and commercial perspectives for Na-ion batteries beyond Li-ion and K-ion counterparts[J]. Advanced Energy Materials, 2021, 11(1): doi: 10.1002/aenm.202002704.
4	LI Y Q, LU Y X, ADELHELM P, et al. Intercalation chemistry of graphite: Alkali metal ions and beyond[J]. Chemical Society Reviews, 2019, 48(17): 4655-4687.
5	SONG K M, LIU C T, MI L W, et al. Recent progress on the alloy-based anode for sodium-ion batteries and potassium-ion batteries[J]. Small (Weinheim an Der Bergstrasse, Germany), 2021, 17(9): doi: 10.1002/smll.201903194.
6	ZHAO C L, LU Y X, YUE J M, et al. Advanced Na metal anodes[J]. Journal of Energy Chemistry, 2018, 27(6): 1584-1596.
7	USISKIN R, LU Y, POPOVIC J, et al. Fundamentals, status and promise of sodium-based batteries[J]. Nature Reviews Materials, 2021, 6(11): 1020-1035.
8	LEE B, PAEK E, MITLIN D, et al. Sodium metal anodes: Emerging solutions to dendrite growth[J]. Chemical Reviews, 2019, 119(8): 5416-5460.
9	CUI X Y, WANG Y J, WU H D, et al. A carbon foam with sodiophilic surface for highly reversible, ultra-long cycle sodium metal anode[J]. Advanced Science (Weinheim, Baden-Wurttemberg, Germany), 2020, 8(2): doi: 10.1002/advs.202003178.
10	CHU C X, LI R, CAI F P, et al. Recent advanced skeletons in sodium metal anodes[J]. Energy & Environmental Science, 2021, 14(8): doi: 10.1039/D1EE01341F.
11	ZHU M, ZHANG Y J, YU F F, et al. Stable sodium metal anode enabled by an interface protection layer rich in organic sulfide salt[J]. Nano Letters, 2021, 21(1): 619-627.
12	WANG L, SHANG J, HUANG Q Y, et al. Smoothing the sodium-metal anode with a self-regulating alloy interface for high-energy and sustainable sodium-metal batteries[J]. Advanced Materials (Deerfield Beach, Fla), 2021, 33(41): doi: 10.1002/adma.202102802.
13	XU C X, YANG Y L, WANG H P, et al. Electrolytes for lithium- and sodium-metal batteries[J]. Chemistry, an Asian Journal, 2020, 15(22): 3584-3598.
14	LEE Y, LEE J, LEE J, et al. Fluoroethylene carbonate-based electrolyte with 1 M sodium bis(fluorosulfonyl)imide enables high-performance sodium metal electrodes[J]. ACS Applied Materials & Interfaces, 2018, 10(17): 15270-15280.
15	FERDOUSI S A, O'DELL L A, HILDER M, et al. SEI formation on sodium metal electrodes in superconcentrated ionic liquid electrolytes and the effect of additive water[J]. ACS Applied Materials & Interfaces, 2021, 13(4): 5706-5720.
16	RAKOV D A, CHEN F, FERDOUSI S A, et al. Engineering high-energy-density sodium battery anodes for improved cycling with superconcentrated ionic-liquid electrolytes[J]. Nature Materials, 2020, 19(10): 1096-1101.
17	ZHENG J M, CHEN S R, ZHAO W G, et al. Extremely stable sodium metal batteries enabled by localized high-concentration electrolytes[J]. ACS Energy Letters, 2018, 3(2): 315-321.
18	BORODIN O, SELF J, PERSSON K A, et al. Uncharted waters: Super-concentrated electrolytes[J]. Joule, 2020, 4(1): 69-100.

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