Molten Metal Batteries Yield 20 Times More Current Than Lithium-Ion 

By Jeremy Hsu at Popular Science: Molten metal may not be what you want in your smartphone battery, but it turns out to work great for larger grid-scale batteries. MIT engineers have created devices that can provide up to 20 times as much current as lithium-ion batteries with the same electrode area, according to New Scientist. The new battery simply consists of tanks filled with three liquid layers kept at 1,292 degrees F (700 degrees C). Molten magnesium sits on top, and antimony sits on the bottom. The middle layer consists of a compound mixture of the two outer layers. Read more

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