Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries

Calcium metal batteries are receiving growing research attention due to significant breakthroughs in recentyears that have indicatedreversible Ca plating/stripping with attractive Coulombic efficiencies (90-95%), once thought to be out of reach. While the Ca anode is often described as being surface...

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Main Authors: Melemed, Aaron M., Khurram, Aliza, Gallant, Betar M. (Betar Maurkah)
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering
Format: Article
Language:English
Published: Wiley 2020
Online Access:https://hdl.handle.net/1721.1/127787
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author Melemed, Aaron M.
Khurram, Aliza
Gallant, Betar M. (Betar Maurkah)
author2 Massachusetts Institute of Technology. Department of Mechanical Engineering
author_facet Massachusetts Institute of Technology. Department of Mechanical Engineering
Melemed, Aaron M.
Khurram, Aliza
Gallant, Betar M. (Betar Maurkah)
author_sort Melemed, Aaron M.
collection MIT
description Calcium metal batteries are receiving growing research attention due to significant breakthroughs in recentyears that have indicatedreversible Ca plating/stripping with attractive Coulombic efficiencies (90-95%), once thought to be out of reach. While the Ca anode is often described as being surface film-controlled,the ability to access reversible Ca electrochemistry is highly electrolyte-dependentin general,which affects both interfacial chemistryon plated Caalong with more fundamental Ca2+/Ca redox properties. This mini-review describes recent progress towards a reversible Ca anode from the point of view of the most successful electrolyte chemistries identified to date. Thisincludes, centrally, what is currently knownabout the Ca2+solvation environment in these systems. Experimental (physico-chemical and spectroscopy) and computationalresultsare summarized forthe two major solvent classes—carbonates and ethers—that have yieldedpromising results so far. Current knowledge gaps and opportunities toimprove fundamental understandingofCa2+/Ca redox are also identified.
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spelling mit-1721.1/1277872022-09-29T16:02:00Z Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries Melemed, Aaron M. Khurram, Aliza Gallant, Betar M. (Betar Maurkah) Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Institute for Data, Systems, and Society Calcium metal batteries are receiving growing research attention due to significant breakthroughs in recentyears that have indicatedreversible Ca plating/stripping with attractive Coulombic efficiencies (90-95%), once thought to be out of reach. While the Ca anode is often described as being surface film-controlled,the ability to access reversible Ca electrochemistry is highly electrolyte-dependentin general,which affects both interfacial chemistryon plated Caalong with more fundamental Ca2+/Ca redox properties. This mini-review describes recent progress towards a reversible Ca anode from the point of view of the most successful electrolyte chemistries identified to date. Thisincludes, centrally, what is currently knownabout the Ca2+solvation environment in these systems. Experimental (physico-chemical and spectroscopy) and computationalresultsare summarized forthe two major solvent classes—carbonates and ethers—that have yieldedpromising results so far. Current knowledge gaps and opportunities toimprove fundamental understandingofCa2+/Ca redox are also identified. 2020-10-01T15:46:59Z 2020-10-01T15:46:59Z 2020-02 2020-09-30T15:15:19Z Article http://purl.org/eprint/type/JournalArticle 2566-6223 https://hdl.handle.net/1721.1/127787 Melemed, Aaron M., Aliza Khurram and Betar M. Gallant. “Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries.” Batteries & Supercaps, 3, 7 (February 2020) © 2020 The Author(s) en 10.1002/BATT.201900219 Batteries & Supercaps Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley Prof. Gallant via Elizabeth Soergel
spellingShingle Melemed, Aaron M.
Khurram, Aliza
Gallant, Betar M. (Betar Maurkah)
Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries
title Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries
title_full Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries
title_fullStr Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries
title_full_unstemmed Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries
title_short Current Understanding of Nonaqueous Electrolytes for Calcium‐Based Batteries
title_sort current understanding of nonaqueous electrolytes for calcium based batteries
url https://hdl.handle.net/1721.1/127787
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