Self-healing electronics could work longer and reduce waste

Engineers have developed a self-healing system that restores electrical conductivity to a cracked circuit in less time than it takes to blink. As a crack propagates, microcapsules filled with liquid metal break open and the liquid fills the gap, restoring electrical flow. The technology is especially attractive for applications where repair is impossible, such as a battery, or finding the source of a failure is difficult, such as an air- or spacecraft.

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