(Invited) Benefits of Borohydride- and Glyme-Containing Electrolytes for Improved Magnesium Anode Behavior
Abstract
Our group has been involved in studies of the complexation and speciation of Mg2+ in ionic liquids as a means to understand the influence of coordination environment on Mg anode electrochemical behavior.1,2 As part of those efforts, we showed the beneficial effects of borohydride and glyme electrolytes for improved magnesium anode behavior. In this presentation we will focus on the complexation of Mg2+ by glyme components in electrolytes and chemical reactivity of borohydride anion on the reversibility of Mg electrodeposition/dissolution. We show that the lessons learned from such studies of Mg2+ complexation allow the design of new chelating ionic liquids that show markedly improved Mg2+/Mg0 electrochemical behavior compared to the parent TFSI-based ionic liquids. Specifically, we describe reasonable coulombic efficiency and current densities that are achievable through judicious choice of the complexation environment and other chemical features of the electrolyte system.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 01, 2017
- Source ID
- 10.1149/ma2017-02/48/2063
Entities
People
- Ashok Kumar
- Daniel A. Buttry