A Rechargeable Al/S Battery with an Ionic-Liquid Electrolyte

Tao Gao; Xiaogang Li; Xiwen Wang; Junkai Hu; Fudong Han; Xiulin Fan; Liumin Suo; Alex J. Pearse; Sang Bok Lee; Gary W. Rubloff; Karen J. Gaskell; Malachi Noked; Chunsheng Wang

doi:10.1002/anie.201603531

A Rechargeable Al/S Battery with an Ionic-Liquid Electrolyte

Tao Gao
, Xiaogang Li
, Xiwen Wang
, Junkai Hu
, Fudong Han
, Xiulin Fan
, Liumin Suo
, Alex J. Pearse
, Sang Bok Lee
, Gary W. Rubloff
, Karen J. Gaskell
, Malachi Noked
, Chunsheng Wang

University of Maryland, College Park

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

270 Scopus citations

Abstract

Aluminum metal is a promising anode material for next generation rechargeable batteries owing to its abundance, potentially dendrite-free deposition, and high capacity. The rechargeable aluminum/sulfur (Al/S) battery is of great interest owing to its high energy density (1340 Wh kg⁻¹) and low cost. However, Al/S chemistry suffers poor reversibility owing to the difficulty of oxidizing AlS_x. Herein, we demonstrate the first reversible Al/S battery in ionic-liquid electrolyte with an activated carbon cloth/sulfur composite cathode. Electrochemical, spectroscopic, and microscopic results suggest that sulfur undergoes a solid-state conversion reaction in the electrolyte. Kinetics analysis identifies that the slow solid-state sulfur conversion reaction causes large voltage hysteresis and limits the energy efficiency of the system.

Original language	English
Pages (from-to)	9898-9901
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	34
DOIs	https://doi.org/10.1002/anie.201603531
State	Published - 16 Aug 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Funding

This work was supported as part of the Nanostructures for Electrical Energy Storage (NEES), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award number DESC0001160. We acknowledge the support of the Maryland NanoCenter and its AIM Lab. We thank Dr. Gil Cohn for his valuable comments.

Funders	Funder number
Maryland NanoCenter
U.S. Department of Energy
Office of Science
Basic Energy Sciences	DESC0001160

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

aluminum/sulfur batteries
electrochemistry
ionic liquids
solid-state reactions
sulfur

Access to Document

10.1002/anie.201603531

Cite this

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abstract = "Aluminum metal is a promising anode material for next generation rechargeable batteries owing to its abundance, potentially dendrite-free deposition, and high capacity. The rechargeable aluminum/sulfur (Al/S) battery is of great interest owing to its high energy density (1340 Wh kg−1) and low cost. However, Al/S chemistry suffers poor reversibility owing to the difficulty of oxidizing AlSx. Herein, we demonstrate the first reversible Al/S battery in ionic-liquid electrolyte with an activated carbon cloth/sulfur composite cathode. Electrochemical, spectroscopic, and microscopic results suggest that sulfur undergoes a solid-state conversion reaction in the electrolyte. Kinetics analysis identifies that the slow solid-state sulfur conversion reaction causes large voltage hysteresis and limits the energy efficiency of the system.",

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doi = "10.1002/anie.201603531",

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AU - Li, Xiaogang

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AU - Hu, Junkai

AU - Han, Fudong

AU - Fan, Xiulin

AU - Suo, Liumin

AU - Pearse, Alex J.

AU - Lee, Sang Bok

AU - Rubloff, Gary W.

AU - Gaskell, Karen J.

AU - Noked, Malachi

AU - Wang, Chunsheng

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AB - Aluminum metal is a promising anode material for next generation rechargeable batteries owing to its abundance, potentially dendrite-free deposition, and high capacity. The rechargeable aluminum/sulfur (Al/S) battery is of great interest owing to its high energy density (1340 Wh kg−1) and low cost. However, Al/S chemistry suffers poor reversibility owing to the difficulty of oxidizing AlSx. Herein, we demonstrate the first reversible Al/S battery in ionic-liquid electrolyte with an activated carbon cloth/sulfur composite cathode. Electrochemical, spectroscopic, and microscopic results suggest that sulfur undergoes a solid-state conversion reaction in the electrolyte. Kinetics analysis identifies that the slow solid-state sulfur conversion reaction causes large voltage hysteresis and limits the energy efficiency of the system.

KW - aluminum/sulfur batteries

KW - electrochemistry

KW - ionic liquids

KW - solid-state reactions

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A Rechargeable Al/S Battery with an Ionic-Liquid Electrolyte

Abstract

Bibliographical note

Funding

UN SDGs

Keywords

Access to Document

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