New Magnetic Motor Uses Less Rare Earth and Could Increase Distance of EVs

Engineers from Australia’s University of New South Wales (UNSW) have developed a magnetically-driven motor that not only requires less rare earth mineral to develop, but could potentially increase the distance electric vehicles (EVs) can cover.
Inspired by the shape of the longest railroad bridge in South Korea—the Gyopo rail bridge—the prototype Interior Permanent Magnet Synchronous Motor (IPMSM) has achieved record speeds of 100,000 revolutions per minute, doubling the existing high-speed record of laminated IPMSMs.
The motor has a very high power density that can reduce the weight of EVs allowing a vehicle to potentially cover longer distances.
Guoyu Chu from the UNSW School of Electrical Engineering and Telecommunications said in a release on Sept. 12 that the current trend in EV design is to have motors that rotate at high speeds….