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Battery, heal thyself: Inventing self-repairing batteries

These microcapsules, filled with liquid metal, sit on a gold conductive layer. If the circuit is mechanically damaged, the capsules burst to restore the conductive pathway. Each is just 10 microns across; 10 could fit side by side in a human hair. Image by Amanda Jones and Ben Blaiszik.

  

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Taken on January 11, 2012