Ionic liquid electrolytes for reversible magnesium electrochemistry

Abstract

Mg has great potential as the basis for a safe, low cost energy storage technology, however, cycling of magnesium is difficult to achieve in most electrolytes. We demonstrate cycling of Mg from a novel alkoxyammonium ionic liquid. DFT calculations highlight the role that Mg coordination with [BH₄]⁻ ions plays in the mechanism.