A team of scientists from Carnegie Mellon just offered up the answer. Using melanin extracted from cuttlefish ink, they developed an edible battery that can be ingested and will harmlessly dissolve when its job is done. After all, traditional batteries are the last thing you want to swallow. “Instead of lithium and toxic electrolytes that work really well but aren’t biocompatible, we chose simple materials of biological origin,” Professor Christopher Bettinger, who led the research, explained to the MIT Technology Review.
via Gizmodo
