- Health ## Scientists made a paper battery you can swallow to power internal medical devices A paper-based, ingestible battery powered medical devices inside pigs for up to three days before gradually breaking down, a new study reported. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. - Copy link - Facebook - Reddit - Pinterest - Flipboard Scientists built a swallowable paper battery that can power medical devices inside the body and then gradually break down after its job is done. So far, the battery has been tested only in pigs, in…