More and more electricity is being generated from
intermittent sources of power, such as solar and wind energy. Powerful electric
energy storage devices are necessary to level out corresponding irregularities
in the power supply. Fraunhofer scientists have recently made an important
breakthrough with their development of a redox flow battery that reaches stack
power up to 25 kW, with a cell size of 0.5 square meters. This is eight times
larger than the previous A4-sized systems. They will be presenting the new
battery for the first time at the Hannover Messe trade show (from April 8–12).