http://www.newsweek.com/scientists-say-theyve-created-sustainable-battery-out-shellfish-casings-1739569

Electric cars could soon be powered by a sustainable battery made from shellfish.

Scientists created the device out of chitin, the major structural component of crustaceans. The substance is found in the outer casings of crabs, lobsters and shrimps, and the exoskeletons of most insects.