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Title: Practical stability limits of magnesium electrolytes

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0451610jes· OSTI ID:1339620
 [1];  [1];  [1];  [2];  [3];  [1];  [1];  [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)

The development of a Mg ion based energy storage system could provide several benefits relative to today's Li-ion batteries, such as improved energy density. The electrolytes for Mg batteries, which are typically designed to efficiently plate and strip Mg, have not yet been proven to work with high voltage cathode materials that are needed to achieve high energy density. One possibility is that these electrolytes are inherently unstable on porous electrodes. To determine if this is indeed the case, the electrochemical properties of a variety of electrolytes were tested using a porous carbon coating on graphite foil and stainless steel electrodes. It was determined that the oxidative stability limit on these porous electrodes is considerably reduced as compared to those found using polished platinum electrodes. Furthermore, the voltage stability was found to be about 3 V vs. Mg metal for the best performing electrolytes. In conclusion, these results imply the need for further research to improve the stability of Mg electrolytes to enable high voltage Mg batteries.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Joint Center for Energy Storage Research (JCESR)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1339620
Journal Information:
Journal of the Electrochemical Society, Vol. 163, Issue 10; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 52 works
Citation information provided by
Web of Science

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Cited By (7)

Fervent Hype behind Magnesium Batteries: An Open Call to Synthetic Chemists-Electrolytes and Cathodes Needed journal August 2017
Rechargeable Magnesium Batteries using Conversion-Type Cathodes: A Perspective and Minireview journal July 2018
Copper sulfide nanoparticles as high-performance cathode materials for magnesium secondary batteries journal January 2018
Multivalent Batteries—Prospects for High Energy Density: Ca Batteries journal February 2019
Cu 9 S 5 Nanoflower Cathode for Mg Secondary Batteries: High Performance and Reaction Mechanism journal March 2019
Widening Electrochemical Window of Mg Salt by Weakly Coordinating Perfluoroalkoxyaluminate Anion for Mg Battery Electrolyte journal January 2019
Evaluation of Mg compounds as coating materials in Mg batteries text January 2019