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Princeton's Craig Arnold puts the squeeze on batteries

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Uploaded on Oct 26, 2011

Most everyone has dealt with the frustration of fading battery capacity. The short life of lithium-ion batteries, which now power our cell phones and laptops, also has limited their use in electric cars.

In an effort to make batteries last as long as the gadgets and cars they power, Craig Arnold, a Princeton professor of mechanical and aerospace engineering, has found a surprising link between battery life and the day-to-day physical forces acting on an overlooked battery component.

Video by Volker Steger.

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