With "Self-Healing" Batteries, Longer Smartphone Battery Life Is Within Reach

Researchers at Stanford University have solved one of the biggest obstacles in developing batteries for smartphones and electric cars that last 10 times as long.

A "self-healing battery" sounds weird--and it is. Researchers at Stanford University have developed a battery electrode that heals itself; this discovery takes care of one of the biggest obstacles preventing the invention of smartphone batteries with longer lives. Using a stretchy polymer that spontaneously heals cracks that form during battery operation, researchers Zhenan Bao and Yi Ci developed the revolutionary proof of concept. Details of the experiment were published in the November 19 issue of Nature Chemistry.

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