Partially 3D Printed Bricks Generate Electricity Through Temperature Changes

“Bricks have been in use as building materials for millennia, but they can do so much more when science and technology are applied. A group of scientists led by King’s College London have developed a thermogalvanic brick that can generate electricity, as long as the two faces of the brick are at different temperatures. This is because of a balanced electrochemical reduction and oxidation processes occurring inside the brick at the two faces. As long as there is a temperature difference between the two faces – if, for example, the outside of a brick structure is hot and sunny but the inside is cool and shaded – the electrochemical reactions will occur and generate electricity. The compounds inside are not consumed, do not run out and cannot be overcharged…”

https://3dprint.com/232998/partially-3d-printed-bricks-generate-electricity-through-temperature-changes/