A French company has introduced a 10-kilowatt battery on plastic base. The rival of JenaBatteries draws now. Both stores are ideal for the buffering of wind and solar power, even in the third world.
Competition for JenaBatteries: the French company Kemwatt from Rennes has developed a redox-flow battery, whose neither toxic nor aggressive, but based on conductive plastics. They are solved in a neutral or slightly alkaline liquid. The electrolytes are non-toxic and harmless to the environment.
Battery stabilizes power grid
JenaBatteries, a spin-off of the University of Jena, has also introduced a redox-flow battery about a year ago. Currently runs a test system in the laboratory. “In August we started to develop a first product”, says Olaf Conrad, one of the managers of the company. It is a battery with a capacity of 10 kW and a capacity of 40 kWh, mid-2017 is supposed to be ready for use. “It is intended to be a site in Thuringia,” Conrad.
Which is however not yet set, nor the intended use. The battery should be used to store excess electricity and lack of electricity in the power to surrender. She could be used by a network operator to stabilize the electricity grid, so Conrad. Then she would used in the energy range.
Little dig at Tesla
The KemWatt battery from France is 10 kW. The company speaks of a world premiere. For two years, the researchers have worked. As well as the battery from Jena, the French use inexpensive materials, so that storage costs significantly lower than those in lithium-ion batteries.
“This battery allows to produce installed capacity for less than 1000 Euro per kilowatt hour “, says Professor Ulrich Schubert, Director of the Center for energy and Environmental Chemistry (CEEC) of the University of Jena, which has done basic research. He can not resist a swipe at Tesla, erected just world’s largest battery production in Nevada. That is significantly more expensive.
Redox flow batteries consist of a converter, in which one of the two liquid electrolyte with electrical energy is charged. It is stored in a tank. Required power flows through the converter, there its energy in the form of electricity and is stored in a second tank. The process is reversed when charging.
Larger tanks bring more performance
While the performance of conventional batteries only increase, if you installed additional batteries, suffice for redox flow batteries to increase the electrolyte tank. This works at least within a certain framework. Also these batteries hold tens of thousands of loading and unloading operations, without sacrificing performance. Their life span is far greater than that of conventional batteries, loud properties, which make it the ideal storage.
“Our system can be used in rural island networks worldwide and more than a billion people, the no access to a power supply with clean energy, have”, says François Huber, CEO of Kemwatt. This is possible in connection with solar and/or wind turbines. Early 2016, he gained a 1.2 million euro for the development of memory by investors.
The auto industry also looks at the new battery technology
The auto industry on the redox-flow technique looks with keen interest. 2014 already Liechtensteiner Nanoflowcell electric car manufacturer had unveiled Quant at the Geneva Auto show, is to have a range of 600 km due to redox-flow battery. But is the car not yet on the market.