A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries

© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Rechargeable aluminum batteries (RABs) are extensively developed due to their cost-effectiveness, eco-friendliness, and low flammability and the earth abundance of their electrode materials. However, the commonly used RAB ionic liquid (IL) elec...

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Hauptverfasser: Li, Chi, Patra, Jagabandhu, Li, Ju, Rath, Purna Chandra, Lin, Ming-Hsien, Chang, Jeng-Kuei
Weitere Verfasser: Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Format: Artikel
Sprache:English
Veröffentlicht: Wiley 2021
Online Zugang:https://hdl.handle.net/1721.1/133219
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author Li, Chi
Patra, Jagabandhu
Li, Ju
Rath, Purna Chandra
Lin, Ming-Hsien
Chang, Jeng-Kuei
author2 Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
author_facet Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Li, Chi
Patra, Jagabandhu
Li, Ju
Rath, Purna Chandra
Lin, Ming-Hsien
Chang, Jeng-Kuei
author_sort Li, Chi
collection MIT
description © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Rechargeable aluminum batteries (RABs) are extensively developed due to their cost-effectiveness, eco-friendliness, and low flammability and the earth abundance of their electrode materials. However, the commonly used RAB ionic liquid (IL) electrolyte is highly moisture-sensitive and corrosive. To address these problems, a 4-ethylpyridine/AlCl3 IL is proposed. The effects of the AlCl3 to 4-ethylpyridine molar ratio on the electrode charge–discharge properties are systematically examined. A maximum graphite capacity of 95 mAh g−1 is obtained at 25 mA g−1. After 1000 charge–discharge cycles, ≈85% of the initial capacity can be retained. In situ synchrotron X-ray diffraction is employed to examine the electrode reaction mechanism. In addition, low corrosion rates of Al, Cu, Ni, and carbon-fiber paper electrodes are confirmed in the 4-ethylpyridine/AlCl3 IL. When opened to the ambient atmosphere, the measured capacity of the graphite cathode is only slightly lower than that found in a N2-filled glove box; moreover, the capacity retention upon 100 cycles is as high as 75%. The results clearly indicate the great potential of this electrolyte for practical RAB applications.
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spelling mit-1721.1/1332192023-02-22T20:40:26Z A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries Li, Chi Patra, Jagabandhu Li, Ju Rath, Purna Chandra Lin, Ming-Hsien Chang, Jeng-Kuei Massachusetts Institute of Technology. Department of Nuclear Science and Engineering © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Rechargeable aluminum batteries (RABs) are extensively developed due to their cost-effectiveness, eco-friendliness, and low flammability and the earth abundance of their electrode materials. However, the commonly used RAB ionic liquid (IL) electrolyte is highly moisture-sensitive and corrosive. To address these problems, a 4-ethylpyridine/AlCl3 IL is proposed. The effects of the AlCl3 to 4-ethylpyridine molar ratio on the electrode charge–discharge properties are systematically examined. A maximum graphite capacity of 95 mAh g−1 is obtained at 25 mA g−1. After 1000 charge–discharge cycles, ≈85% of the initial capacity can be retained. In situ synchrotron X-ray diffraction is employed to examine the electrode reaction mechanism. In addition, low corrosion rates of Al, Cu, Ni, and carbon-fiber paper electrodes are confirmed in the 4-ethylpyridine/AlCl3 IL. When opened to the ambient atmosphere, the measured capacity of the graphite cathode is only slightly lower than that found in a N2-filled glove box; moreover, the capacity retention upon 100 cycles is as high as 75%. The results clearly indicate the great potential of this electrolyte for practical RAB applications. 2021-10-27T19:51:33Z 2021-10-27T19:51:33Z 2020 2021-08-12T15:16:30Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133219 en 10.1002/ADFM.201909565 Advanced Functional Materials Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley MIT web domain
spellingShingle Li, Chi
Patra, Jagabandhu
Li, Ju
Rath, Purna Chandra
Lin, Ming-Hsien
Chang, Jeng-Kuei
A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries
title A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries
title_full A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries
title_fullStr A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries
title_full_unstemmed A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries
title_short A Novel Moisture‐Insensitive and Low‐Corrosivity Ionic Liquid Electrolyte for Rechargeable Aluminum Batteries
title_sort novel moisture insensitive and low corrosivity ionic liquid electrolyte for rechargeable aluminum batteries
url https://hdl.handle.net/1721.1/133219
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