Steve Martin, Iowa State University (IMAGE) Iowa State University Caption Steve Martin of Iowa State University and the US Department of Energy's Ames Laboratory loads ion-conducting glass, a solid electrolyte used in batteries, into an impedance spectrometer that measures ion conductivity. High conductivity is required for the electrolytes in batteries. Credit Photo by Patrick Herteen/Engineering Communications/Iowa State University 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.