Electric motors with improved recyclability
Every car currently contains 20-60
electric motors. When old cars are broken up, the copper-wire
windings inside the motors are trapped and contaminate the
steel to be recycled. The CEMIR project designed a friable
electric motor from compressed iron powder. This breaks up
and releases the copper wiring as the car is crushed during
end-of-life recycling operations. Consequently, the valuable
copper can now be recycled and the steel is less contaminated.
The new material and motor also have other advantages, including
better physical properties; a factory will soon start producing
these new motors by the million.