Prototype systems for rechargeable magnesium batteries

摘要: The thermodynamic properties of magnesium make it a natural choice for use as an anode material in rechargeable batteries, because may provide considerably higher energy density than the commonly used lead–acid and nickel–cadmium systems. Moreover, contrast to lead cadmium, is inexpensive, environmentally friendly safe handle. But development Mg batteries has been hindered by two problems. First, owing chemical activity Mg, only solutions that neither donate nor accept protons are suitable electrolytes; but most these allow growth passivating surface films, which inhibit any electrochemical reaction1,2,3. Second, cathode materials limited difficulty intercalating ions many hosts4. Following previous studies electrochemistry electrodes various non-aqueous solutions1,5, variety intercalation electrodes6,7, we have now developed battery systems show promise applications. comprise electrolyte based on organohaloaluminate salts, MgxMo3S4 cathodes, into can be intercalated reversibly, with relatively fast kinetics. We expect further improvements will viable alternative existing