Ionic Liquid Battery (IMAGE) Naval Research Laboratory Caption From left to right: (A) a Zn anode (1cm in diameter), (B) an EMIHSO4 - PVA separator (laying on a syringe needle to illustrate thickness and transparency), and (C) a PbO2 – carbon cathode. Credit Naval Research 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.