All-solid-state batteries: New findings on space charge effects could improve efficiency

Batteries are found in many devices. The development of solid-state batteries that provide higher working voltage, have a higher capacity, and can no longer burn is the subject of current research. Researchers at the Max Planck Institute for Polymer Research and Japanese universities have now investigated space charge effects in such batteries, which bring additional resistance for both charging and discharging. Using microscopic methods, they were able to determine the spatial extent and the resulting resistance of the space charge zone for the first time.