Room-temperature cycling of metal fluoride electrodes: Liquid electrolytes for high-energy fluoride ion cells

Victoria K. Davis; Christopher M. Bates; Kaoru Omichi; Brett M. Savoie; Nebojša Momčilović; Qingmin Xu; William J. Wolf; Michael A. Webb; Keith J. Billings; Nam Hawn Chou; Selim Alayoglu; Ryan K. McKenney; Isabelle M. Darolles; Nanditha G. Nair; Adrian Hightower; Daniel Rosenberg; Musahid Ahmed; Christopher J. Brooks; Thomas F. Miller; Robert H. Grubbs; Simon C. Jones

doi:10.1126/science.aat7070

Room-temperature cycling of metal fluoride electrodes: Liquid electrolytes for high-energy fluoride ion cells

Victoria K. Davis, Christopher M. Bates, Kaoru Omichi, Brett M. Savoie, Nebojša Momčilović, Qingmin Xu, William J. Wolf, Michael A. Webb, Keith J. Billings, Nam Hawn Chou, Selim Alayoglu, Ryan K. McKenney, Isabelle M. Darolles, Nanditha G. Nair, Adrian Hightower, Daniel Rosenberg, Musahid Ahmed, Christopher J. Brooks, Thomas F. Miller, Robert H. GrubbsSimon C. Jones

Research output: Contribution to journal › Article › peer-review

188 Scopus citations

Abstract

Fluoride ion batteries are potential “next-generation” electrochemical storage devices tha offer high energy density. At present, such batteries are limited to operation at high temperatures because suitable fluoride ion–conducting electrolytes are known only in the solid state. We report a liquid fluoride ion–conducting electrolyte with high ionic conductivity, wide operating voltage, and robust chemical stability based on dry tetraalkylammonium fluoride salts in ether solvents. Pairing this liquid electrolyte with a copper–lanthanum trifluoride (Cu@LaF₃) core-shell cathode, we demonstrate reversible fluorination and defluorination reactions in a fluoride ion electrochemical cell cycled at room temperature. Fluoride ion–mediated electrochemistry offers a pathway toward developing capacities beyond that of lithium ion technology.

Original language	English (US)
Pages (from-to)	1144-1148
Number of pages	5
Journal	Science
Volume	362
Issue number	6419
DOIs	https://doi.org/10.1126/science.aat7070
State	Published - Dec 7 2018
Externally published	Yes

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Davis, V. K., Bates, C. M., Omichi, K., Savoie, B. M., Momčilović, N., Xu, Q., Wolf, W. J., Webb, M. A., Billings, K. J., Chou, N. H., Alayoglu, S., McKenney, R. K., Darolles, I. M., Nair, N. G., Hightower, A., Rosenberg, D., Ahmed, M., Brooks, C. J., Miller, T. F., ... Jones, S. C. (2018). Room-temperature cycling of metal fluoride electrodes: Liquid electrolytes for high-energy fluoride ion cells. Science, 362(6419), 1144-1148. https://doi.org/10.1126/science.aat7070

@article{1e83982d9d94429bb3717817bf888ee7,

title = "Room-temperature cycling of metal fluoride electrodes: Liquid electrolytes for high-energy fluoride ion cells",

abstract = "Fluoride ion batteries are potential “next-generation” electrochemical storage devices tha offer high energy density. At present, such batteries are limited to operation at high temperatures because suitable fluoride ion–conducting electrolytes are known only in the solid state. We report a liquid fluoride ion–conducting electrolyte with high ionic conductivity, wide operating voltage, and robust chemical stability based on dry tetraalkylammonium fluoride salts in ether solvents. Pairing this liquid electrolyte with a copper–lanthanum trifluoride (Cu@LaF3) core-shell cathode, we demonstrate reversible fluorination and defluorination reactions in a fluoride ion electrochemical cell cycled at room temperature. Fluoride ion–mediated electrochemistry offers a pathway toward developing capacities beyond that of lithium ion technology.",

author = "Davis, {Victoria K.} and Bates, {Christopher M.} and Kaoru Omichi and Savoie, {Brett M.} and Neboj{\v s}a Mom{\v c}ilovi{\'c} and Qingmin Xu and Wolf, {William J.} and Webb, {Michael A.} and Billings, {Keith J.} and Chou, {Nam Hawn} and Selim Alayoglu and McKenney, {Ryan K.} and Darolles, {Isabelle M.} and Nair, {Nanditha G.} and Adrian Hightower and Daniel Rosenberg and Musahid Ahmed and Brooks, {Christopher J.} and Miller, {Thomas F.} and Grubbs, {Robert H.} and Jones, {Simon C.}",

year = "2018",

month = dec,

day = "7",

doi = "10.1126/science.aat7070",

language = "English (US)",

volume = "362",

pages = "1144--1148",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6419",

}

Davis, VK, Bates, CM, Omichi, K, Savoie, BM, Momčilović, N, Xu, Q, Wolf, WJ, Webb, MA, Billings, KJ, Chou, NH, Alayoglu, S, McKenney, RK, Darolles, IM, Nair, NG, Hightower, A, Rosenberg, D, Ahmed, M, Brooks, CJ, Miller, TF, Grubbs, RH & Jones, SC 2018, 'Room-temperature cycling of metal fluoride electrodes: Liquid electrolytes for high-energy fluoride ion cells', Science, vol. 362, no. 6419, pp. 1144-1148. https://doi.org/10.1126/science.aat7070

TY - JOUR

T1 - Room-temperature cycling of metal fluoride electrodes

T2 - Liquid electrolytes for high-energy fluoride ion cells

AU - Davis, Victoria K.

AU - Bates, Christopher M.

AU - Omichi, Kaoru

AU - Savoie, Brett M.

AU - Momčilović, Nebojša

AU - Xu, Qingmin

AU - Wolf, William J.

AU - Webb, Michael A.

AU - Billings, Keith J.

AU - Chou, Nam Hawn

AU - Alayoglu, Selim

AU - McKenney, Ryan K.

AU - Darolles, Isabelle M.

AU - Nair, Nanditha G.

AU - Hightower, Adrian

AU - Rosenberg, Daniel

AU - Ahmed, Musahid

AU - Brooks, Christopher J.

AU - Miller, Thomas F.

AU - Grubbs, Robert H.

AU - Jones, Simon C.

PY - 2018/12/7

Y1 - 2018/12/7

N2 - Fluoride ion batteries are potential “next-generation” electrochemical storage devices tha offer high energy density. At present, such batteries are limited to operation at high temperatures because suitable fluoride ion–conducting electrolytes are known only in the solid state. We report a liquid fluoride ion–conducting electrolyte with high ionic conductivity, wide operating voltage, and robust chemical stability based on dry tetraalkylammonium fluoride salts in ether solvents. Pairing this liquid electrolyte with a copper–lanthanum trifluoride (Cu@LaF3) core-shell cathode, we demonstrate reversible fluorination and defluorination reactions in a fluoride ion electrochemical cell cycled at room temperature. Fluoride ion–mediated electrochemistry offers a pathway toward developing capacities beyond that of lithium ion technology.

AB - Fluoride ion batteries are potential “next-generation” electrochemical storage devices tha offer high energy density. At present, such batteries are limited to operation at high temperatures because suitable fluoride ion–conducting electrolytes are known only in the solid state. We report a liquid fluoride ion–conducting electrolyte with high ionic conductivity, wide operating voltage, and robust chemical stability based on dry tetraalkylammonium fluoride salts in ether solvents. Pairing this liquid electrolyte with a copper–lanthanum trifluoride (Cu@LaF3) core-shell cathode, we demonstrate reversible fluorination and defluorination reactions in a fluoride ion electrochemical cell cycled at room temperature. Fluoride ion–mediated electrochemistry offers a pathway toward developing capacities beyond that of lithium ion technology.

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AN - SCOPUS:85057728898

SN - 0036-8075

VL - 362

SP - 1144

EP - 1148

JO - Science

JF - Science

IS - 6419

ER -

Room-temperature cycling of metal fluoride electrodes: Liquid electrolytes for high-energy fluoride ion cells

Abstract

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