A group of researchers at the German Institute for chemical technology of the Fraunhofer (ICT) together with the oldest technical University of Germany Technology Institute of Karlsruhe – developed electric motor with housing made of polymer. Scientists were able to improve the cooling node, which increased its effectiveness.
The research project involves the development of DEmiL electric motor with integrated light housing and direct cooling of stator and rotor. “The motor consists of rotating rotor and a stationary stator, – says an employee of the Institute of chemical technology Robert Martin – Through the copper winding of the stator is electricity, and here arises a larger number of losses. Our goal is to completely get rid of them.”
To prevent overheating, conventional electric motors are enclosed in a metal housing that is associated with the clutch cooling filled with cold water. ICT researchers propose to act differently: they replaced the round wire into a flat, thereby creating cooling channels inside the stator, and to increase the thermal efficiency. The heat dissipation in the place where it is formed, allowed to abandon the metal housing was replaced in the case of a thermoset plastic reinforced with fibers. The efficiency of this motor was about 98 percent.
In December last year, Honda was forced to work on the fluoride-ion batteries with a solid electrolyte at room temperature. In its current development of solid-state fluoride-ion batteries for normal operation requires high temperature over 150 degrees Celsius.