Superconducting Electric Motor Car

A automobile with a superconducting motor has been announced by Sumitomo Electric of Japan. The car is a modified Toyota Crown Comfort sedan powered by a 365 kilowatt superconducting motor cooled by liquid nitrogen.

(Superconducting motor car)

The car was unveiled in Osaka on June 12.

Sumitomo’s motor uses high-temperature superconducting wires instead of the copper wire typically used in the coils in electric vehicle motors. When cooled to an extremely low temperature, electrical resistance and current loss are reduced to nearly zero, so the motor can operate with greater energy efficiency and torque — in other words, the motor uses less electricity to do the same amount of work. The company says the prototype vehicle can travel 10% farther than conventional electric vehicles running on the same type of battery.

Via Superconductor electric vehicle.

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