Surface Amalgam on Magnesium Electrode: Protective Coating or Not?

A better control of the metal–electrolyte interface is mandatory to help development rechargeable magnesium batteries. Protecting surface by a coating layer avoid its passivation with conventional liquid electrolytes promising strategy. Herein, in contact mercury droplet, crystalline amalgam created on magnesium. After creation this coating, remarkable improvement plating/stripping process observed bis(trifluoromethanesulfonyl)imide/dimethoxyethane electrolyte, whereas strong hindering electrochemical cycling occurs when using bare The detailed investigation evolution during cycling, however, shows substantial chemical and morphological changes, eventually showing that such does not act as protecting but rather an independent electrode material deposited inert Mg substrate.