This little piggy built a battery that everybody else thinks is a brick wall… (Image from ‘The Story of the Three Little Pigs’ (1904), courtesy of the Library of Congress)
Red bricks — some of the world’s cheapest and most familiar building materials — can be converted into energy storage units that can be charged to hold electricity, like a battery, according to new research from Washington University in St. Louis.
https://source.wustl.edu/2020/....08/storing-energy-in
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