Practical stability limits of magnesium electrolytes

Albert L. Lipson, Sang Don Han, Baofei Pan, Kimberly A. See, Andrew A. Gewirth, Chen Liao, John T. Vaughey, Brian J. Ingram

Research output: Contribution to journalArticlepeer-review

Abstract

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. These results imply the need for further research to improve the stability of Mg electrolytes to enable high voltage Mg batteries.

Original languageEnglish (US)
Pages (from-to)A2253-A2257
JournalJournal of the Electrochemical Society
Volume163
Issue number10
DOIs
StatePublished - 2016

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Practical stability limits of magnesium electrolytes'. Together they form a unique fingerprint.

Cite this