Droplet battery image (IMAGE) University of Oxford Caption Left: Enlarged version of the droplet power source, for visualisation. 500 nL volume droplets were encapsulated in a flexible and compressible organogel. Scale bar: 10 mm. Right: Zoom in view of a standard-sized droplet power source, made of 50 nL droplets. Scale bar: 500 μm. Image credit: Yujia Zhang. Credit Yujia Zhang. Usage Restrictions The image can only be used if credited License Original 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.