Battery charging and discharging (IMAGE) DOE/Pacific Northwest National Laboratory Caption As a battery goes through repeated cycles of charging and discharging, it loses its ability to hold a charge. A new sodium-ion battery technology developed at Pacific Northwest National Laboratory holds its ability to charge for longer than previously described sodium-ion batteries. Credit Sara Levine | Pacific Northwest National Laboratory Usage Restrictions No restrictions. License Public Domain 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.