FollowIf you thought photovoltaics can only get energy from the Sun, then you were wrong. An MIT team of researchers have invented a device that produces electricity from heat. The process uses the photovoltaic effect as the middleman and is three times more efficient than the most efficient lithium ion batteries on market today.
92 percent of all the energy we use involves burning something and then turning the heat into mechanical work. Therefore it would be much simpler and would make sense improving the whole process so it turns heat into electricity without involving moving parts.
