Princeton's ‪Craig Arnold puts the squeeze on batteries‬. www.princeton.edu/engineering...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./n/n 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.

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