Flexible Batteries Offering Safety, Improved Performance (VIDEO) University of Delaware This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption A battery flexible enough to be placed inside a football to power a sensor that could confirm first downs. A UD research team is working to create flexible, safer, faster-charging batteries. Credit Video by Paul Puglisi Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.