Pouch cell battery (IMAGE) DOE/Brookhaven National Laboratory Caption Cassidy Anderson, a PNNL post-bachelor intern and Battery500 Consortium team member, holds a pouch cell battery in PNNL's Advanced Battery Facility. The battery is enclosed in a polymer-based pouch containing an aluminum barrier layer to keep it safely sealed in an air-free environment. Credit Photo courtesy of Andrea Starr | Pacific Northwest National Laboratory 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.