With conductive polymers, bricks can also become “batteries”

Ordinary bricks with conductive fibers can store energy, according to an August 11 article on British weekly’s website. Excerpts are as follows: < / P > < p > Julio de AlSi of the University of Washington and his colleagues used a special conductive polymer called PEDOT to make their energy storage bricks. First, they used the kind of red bricks that are often used in construction and heated them with acid steam. < / P > < p > this causes the hematite in the brick to decompose. It is hematite that makes these bricks red. The researchers then added other compounds to react with the decomposed hematite. The result is that the bricks are covered with tiny conductive PEDOT fibers. After treatment, the bricks turned a dark brown blue instead of red. < / P > < p > then, the researchers covered the surface of the bricks with epoxy resin to make them waterproof bricks. The polymer coated bricks can be plugged in to charge. They store enough energy. Three small bricks, each about 4 * 3 * 1 cm in size, can power a green LED lamp for about 10 minutes after charging. They can be recharged 10000 times without losing more than 10% of their storage capacity. < / P > < p > we do not know whether these bricks will maintain their strength when hematite is decomposed. “They’ve been treated with acid, so I won’t use them for construction purposes, but we haven’t done any mechanical tests yet,” de AlSi said He said the bricks could be used for decoration and could be connected to solar cells to provide emergency lighting. “A brick will have more power than a number five battery, but it’s cheap,” de AlSi said He said the cost of a brick is $2-3. If these bricks can be turned into building materials, and we can find ways to make them cheaply, we may eventually be able to build brick walls that can power electrical appliances. Xiaomi new machine real machine exposure center dig hole screen design or high color thousand yuan machine