Redox Flow Battery Storage: How an Old Idea Is Making a Comeback Today and What NASA Has to Do With It
The energy transition poses a major challenge for energy systems worldwide: electricity must not only be generated cleanly, but also stored reliably. With the growing share of solar and wind energy in particular, the question of suitable long-term storage solutions is coming increasingly into focus. Alongside well-known technologies such as pumped-storage power plants and lithium-ion batteries, a solution is gaining attention that, at first glance, sounds more like laboratory research or space exploration: the redox flow battery.