Additional Explanation 1 (IMAGE) National Research Council of Science & Technology Caption Development of commercial technology of 5kW high temperature polymer electrolyte membrane fuel cell stack Credit Korea Institute of Energy Research (KIER) Usage Restrictions The sources of photos and research results from KIER must be specified. 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.