Flow battery electrolyte (IMAGE) DOE/Pacific Northwest National Laboratory Caption Researchers prepare an experimental flow battery electrolyte that has shown long life in the laboratory setting. Credit (Photo by Andrea Starr | Pacific Northwest National Laboratory) Usage Restrictions No restrictions. License Public Domain 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.