Rechargeable Magnesium Battery

Abstract

This invention generally relates to electrochemical cells uti liZing magnesium anodes; neW solutions and intercalation cathodes. The present invention is a neW rechargeable mag nesium battery based on magnesium metal as an anode mate rial; a modi?ed Chevrel phase as an intercalation cathode for magnesium ions and neW electrolyte solution from Which magnesium can be deposited reversibly; Which have a very Wide electrochemical WindoW. The Chevrel phase compound is represented by the formula Mo6S8-YSeY in Which y is higher than 0 and loWer than 2 or by the formula MXMo6S8 in Which M is selected from the group comprising of copper (Cu); nickel (Ni); silver (Ag) and/or any other transition metal; further Wherein X is higher than 0 and loWer than 2.