New Electric Motor Could Boost Efficiency of EVs, Scooters, and Wind Turbines

The Hunstable Electric Turbine by Linear Labs can generate two to five times the torque of existing motors in the same-size package, the company says

3 min read
Image of the motor produced by Linear Labs.
Photo: Linear Labs

Makers of electric vehicles, e-bikes, or electric scooters—and the owners who love them—tend to focus on batteries, and how much better their vehicles become as batteries shrink in weight, size, and cost. 

But electric motors are the often-overlooked aspect of that equation. Linear Labs says its electric machines could revolutionize automobiles, wind turbines, and air conditioners as well as robotics, drones, and micromobility vehicles. 

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A photo shows separated components of the axial flux motor in the order in which they appear in the finished motor.
INFINITUM ELECTRIC
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The heart of any electric motor consists of a rotor that revolves around a stationary part, called a stator. The stator, traditionally made of iron, tends to be heavy. Stator iron accounts for about two-thirds of the weight of a conventional motor. To lighten the stator, some people proposed making it out of a printed circuit board.

Although the idea of replacing a hunk of iron with a lightweight, ultrathin, easy-to-make, long-lasting PCB was attractive from the outset, it didn’t gain widespread adoption in its earliest applications inside lawn equipment and wind turbines a little over a decade ago. Now, though, the PCB stator is getting a new lease on life. Expect it to save weight and thus energy in just about everything that uses electricity to impart motive force.

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