Robust battery interphases from dilute fluorinated cations.

Autor:	Hong CN; Electrochemical Energy Systems Laboratory, Department of Mechanical and Process Engineering, ETH Zurich Zürich 8092 Switzerland mlukatskaya@ethz.ch., Yan M; Department of Chemistry, The University at Albany, State University of New York Albany NY 12222 USA., Borodin O; Battery Science Branch, DEVCOM Army Research Laboratory Adelphi MD 20783 USA., Pollard TP; Battery Science Branch, DEVCOM Army Research Laboratory Adelphi MD 20783 USA., Wu L; Department of Chemical Sciences, Ariel University Ariel 40700 Israel., Reiter M; Electrochemical Energy Systems Laboratory, Department of Mechanical and Process Engineering, ETH Zurich Zürich 8092 Switzerland mlukatskaya@ethz.ch., Vazquez DG; Electrochemical Energy Systems Laboratory, Department of Mechanical and Process Engineering, ETH Zurich Zürich 8092 Switzerland mlukatskaya@ethz.ch., Trapp K; Electrochemical Energy Systems Laboratory, Department of Mechanical and Process Engineering, ETH Zurich Zürich 8092 Switzerland mlukatskaya@ethz.ch., Yoo JM; Electrochemical Energy Systems Laboratory, Department of Mechanical and Process Engineering, ETH Zurich Zürich 8092 Switzerland mlukatskaya@ethz.ch., Shpigel N; Department of Chemical Sciences, Ariel University Ariel 40700 Israel., Feldblyum JI; Department of Chemistry, The University at Albany, State University of New York Albany NY 12222 USA., Lukatskaya MR; Electrochemical Energy Systems Laboratory, Department of Mechanical and Process Engineering, ETH Zurich Zürich 8092 Switzerland mlukatskaya@ethz.ch.
Jazyk:	angličtina
Zdroj:	Energy & environmental science [Energy Environ Sci] 2024 May 02; Vol. 17 (12), pp. 4137-4146. Date of Electronic Publication: 2024 May 02 (Print Publication: 2024).
DOI:	10.1039/d4ee00296b
Abstrakt:	Controlling solid electrolyte interphase (SEI) in batteries is crucial for their efficient cycling. Herein, we demonstrate an approach to enable robust battery performance that does not rely on high fractions of fluorinated species in electrolytes, thus substantially decreasing the environmental footprint and cost of high-energy batteries. In this approach, we use very low fractions of readily reducible fluorinated cations in electrolyte (∼0.1 wt%) and employ electrostatic attraction to generate a substantial population of these cations at the anode surface. As a result, we can form a robust fluorine-rich SEI that allows for dendrite-free deposition of dense Li and stable cycling of Li-metal full cells with high-voltage cathodes. Our approach represents a general strategy for delivering desired chemical species to battery anodes through electrostatic attraction while using minute amounts of additive. Competing Interests: The authors have a patent (US patent provisional application number 63398320) related to the electrolytes described in this article. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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