Interphasing Multivalent Batteries

Abstract

The cell potential of magnesium metal anode batteries is currently limited by the lack of stable and non-corrosive electrolytes. In a recent issue of Nature Chemistry, Son et al. demonstrated an artificial interphase on Mg anode that extends the electrolyte stability range while enabling magnesium transport. This approach paves the way for practical assessment of high-voltage cathodes and the assembly of high-energy-density Mg cells. Extension of the concept to other multivalent systems is also exciting.