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Tiny Battery Cools Chips While Powering Them
This idea brings the idea of perpetual energy closer to reality - and that's not even the goal here. Researches have constructed a battery that has a dual benefit of supplying power to chips as well as cooling them at the same time. There is some pumping required to remove heat, but the entire process takes 0.4W and it still leaves 1W left to power the chip. Once they figure out how to cool the chip, capture the heat and use that to make electricity, it will either create a black hole - or solve the world's energy problem.
"Redox flow" batteries that use liquid electrolytes are normally used on a large scale to store energy. For instance, Harvard Researchers recently created one that can last over ten years with very little degradation, making it ideal to store solar or wind energy.