Oxygen – a fatal impurity for reversible magnesium deposition/dissolution

Abstract

The compatibility of rechargeable magnesium batteries (RMBs) with atmospheric components (except moisture) has not been studied. We investigated the effects of atmospheric conditions on the electrochemical dissolution–deposition behavior of magnesium in non-aqueous electrolytes. Oxygen, even in miniscule amounts in the electrolyte was a fatal impurity for reversible magnesium electrochemistry.