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Electric vehicles (EVs) are becoming more common on our streets. While passenger vehicles receive the most headlines, the development of electric alternatives to internal combustion is taking place in every sector of the transportation industry, from small personal mobility devices to the largest commercial vehicles.
EVs do not use combustion to create power, but they still generate heat. The electric motors that drive the latest EVs deliver impressive performance, but even the most efficient device will produce excess thermal energy due to the electrical resistance of the conductive components. Whenever electric current flows through such a component, a proportion of the energy will be lost as heat.
Therefore, heat is an unwanted byproduct of EVs and must be managed. Many motors use copper wire, taking advantage of its strength and conductivity to create efficient motors. Still, elevated temperatures cause an increase in electrical resistance within copper wires, making the motor less efficient as more electrical energy is lost to heating.
Here’s a closer look at a new solution to cooling EV motors.
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