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Title: Reversible S0/MgSx Redox Chemistry in a MgTFSI2/MgCl2 /DME Electrolyte for Rechargeable Mg/S Batteries

Journal Article · · Angewandte Chemie
 [1];  [1];  [1];  [1];  [1];  [2];  [1]
  1. Univ. of Maryland, College Park, MD (United States)
  2. Army Research Lab., Adelphi, MD (United States)

Abstract The redox chemistry of magnesium and its application in rechargeable Mg batteries has received increasing attention owing to the unique benefits of Mg metal electrodes, namely high reversibility without dendrite formation, low reduction potentials, and high specific capacities. The Mg/S couple is of particular interest owing to its high energy density and low cost. Previous reports have confirmed the feasibility of a rechargeable Mg/S battery; however, only limited cycling stability was achieved, and the complicated procedure for the preparation of the electrolytes has significantly compromised the benefits of Mg/S chemistry and hindered the development of Mg/S batteries. Herein, we report the development of the first rechargeable Mg/S battery with a MgTFSI 2 /MgCl 2 /DME electrolyte (DME=1,2‐dimethoxyethane, TFSI=bis(trifluoromethanesulfonyl)imide) and realize the best cycling stability among all reported Mg/S batteries by suppressing polysulfide dissolution. Mechanistic studies show that the battery works via S 0 /MgS x redox processes and that the large voltage hysteresis is mainly due to the Mg anode overpotential.

Research Organization:
Univ. of Maryland, College Park, MD (United States). Energy Frontier Research Center (EFRC) Nanostructures for Electrical Energy Storage (NEES)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001160
OSTI ID:
1469863
Alternate ID(s):
OSTI ID: 1393994
Journal Information:
Angewandte Chemie, Vol. 129, Issue 43; Related Information: NEES partners with University of Maryland (lead); University of California, Irvine; University of Florida; Los Alamos National Laboratory; Sandia National Laboratories; Yale University; ISSN 0044-8249
Publisher:
German Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (30)

Rechargeable Magnesium–Sulfur Battery Technology: State of the Art and Key Challenges journal September 2019
Extending Cycle Life of Mg/S Battery by Activation of Mg Anode/Electrolyte Interface through an LiCl‐Assisted MgCl 2 Solubilization Mechanism journal December 2019
Nonlithium Metal-Sulfur Batteries: Steps Toward a Leap journal November 2018
A Crosslinked Polytetrahydrofuran‐Borate‐Based Polymer Electrolyte Enabling Wide‐Working‐Temperature‐Range Rechargeable Magnesium Batteries journal January 2019
Current Status and Future Prospects of Metal–Sulfur Batteries journal May 2019
Improving a Mg/S Battery with YCl 3 Additive and Magnesium Polysulfide journal December 2018
Theoretical versus Practical Energy: A Plea for More Transparency in the Energy Calculation of Different Rechargeable Battery Systems journal December 2018
Rechargeable Iron–Sulfur Battery without Polysulfide Shuttling journal September 2019
Fast and Reversible Four‐Electron Storage Enabled by Ethyl Viologen for Rechargeable Magnesium Batteries journal November 2019
Halogenid‐basierte Materialien und Chemie für wiederaufladbare Batterien journal January 2020
A Four‐Electron Sulfur Electrode Hosting a Cu 2+ /Cu + Redox Charge Carrier journal July 2019
A Metal–Organic Framework Thin Film for Selective Mg 2+ Transport journal September 2019
Halide‐Based Materials and Chemistry for Rechargeable Batteries journal January 2020
A Four‐Electron Sulfur Electrode Hosting a Cu 2+ /Cu + Redox Charge Carrier journal September 2019
A Metal–Organic Framework Thin Film for Selective Mg 2+ Transport journal October 2019
Computational Insights into Mg‐Cl Complex Electrolytes for Rechargeable Magnesium Batteries journal June 2019
A Review of Advanced Energy Materials for Magnesium-Sulfur Batteries journal September 2018
Electrolyte Evolution Propelling the Development of Nonlithium Metal–Sulfur Batteries journal May 2019
Rechargeable Magnesium Batteries using Conversion-Type Cathodes: A Perspective and Minireview journal July 2018
Reversible intercalation of methyl viologen as a dicationic charge carrier in aqueous batteries journal July 2019
Performance evaluation of zero-valent iron nanoparticles (NZVI) for high-concentration H 2 S removal from biogas at different temperatures journal January 2018
A conductive selenized polyacrylonitrile cathode in nucleophilic Mg 2+ /Li + hybrid electrolytes for magnesium–selenium batteries journal January 2018
A highly-effective nitrogen-doped porous carbon sponge electrode for advanced K–Se batteries journal January 2020
A novel magnesium electrolyte containing a magnesium bis(diisopropyl)amide–magnesium chloride complex for rechargeable magnesium batteries journal January 2019
Are MXenes suitable as cathode materials for rechargeable Mg batteries? journal January 2020
Sequestration of Sulphide from Biogas by thermal-treated iron nanoparticles synthesized using tea polyphenols journal August 2018
Opportunities and Challenges in the Development of Cathode Materials for Rechargeable Mg Batteries journal December 2018
Beyond Intercalation Chemistry for Rechargeable Mg Batteries: A Short Review and Perspective journal January 2019
Beyond Intercalation Chemistry for Rechargeable Mg Batteries: A Short Review and Perspective text January 2019
Theoretical versus Practical Energy: A Plea for More Transparency in the Energy Calculation of Different Rechargeable Battery Systems journal June 2019

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