Cheaper, longer-lasting materials could enable batteries that make wind and solar energy more competitive. New publication in Nature.
See the MIT News Office for the story.
A physical model of the liquid metal battery at room temperature, in a glass container. The bottom layer is the positive electrode. In the real battery this is an alloy of antimony and lead, represented here by mercury. The middle layer is the electrolyte — in reality, a mixed molten salt; here, a solution of salt in water. The top layer is the current collector of the negative electrode, a metal mesh of iron-nickel alloy.
Image: Felice Frankel