Figure 1 (IMAGE) National Research Council of Science & Technology Caption Causes of hydrogen generation and incessant accumulation within the cell in the aqueous rechargeable batteries Credit Korea Institute of Science and Technology Usage Restrictions The sources of photos and research results from KIST must be specified. 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.