STORING RENEWABLE ENERGIES ECOLOGICALLY
Optimizing self-consumption of self-produced power from renewable energies, avoiding expensive power load peaks or creating a reliable emergency power supply – the reasons for investing in a storage solution for renewable energies are many and diverse. Currently, storage systems based on lithium technology dominate the market, but in many aspects they are questionable from an ecological point of view. The redox flow storage technology represents a sustainable, resource-saving and thus future-oriented alternative for storage systems, and also has a high level of operational reliability with optimal performance.
WHY BATTERY SOLUTIONS BEYOND LITHIUM ARE NEEDED
The most common type of lithium battery is composed of five raw materials: lithium, nickel, manganese, cobalt and graphite. Above all, the extraction of lithium and cobalt causes massive ecological and humanitarian problems. The situation is different for energy storage systems based on redox flow technology. The resources required for this technology can be obtained without overexploitation of man and nature.
THE ECOLOGICAL ALTERNATIVE TO LITHIUM:
REDOX FLOW STORAGE TECHNOLOGY
Compared to common storage technologies, such as those based on lithium, redox flow technology is highly climate-friendly, as it does not require rare materials or conflict raw materials, is fully recyclable, and also has a very high level of operational reliability and a long lifetime.
The storage medium is a liquid electrolyte. This is located in two separate tanks and can take on different oxidation states through a redox process, thereby storing energy.
The electrolyte flows through the battery cells in two separate circuits. When the battery is charged, the electrolyte is reduced in the negative half cell and oxidized in the positive half cell. When discharging, this process is reversed again.
A special pump system flows the electrolyte into and through the battery cells. This makes it possible that not all the electrolyte has to be kept in the cells, enabling the decoupling of energy capacity and power. The pumping system is only activated on demand.
ADVANTAGES OF REDOX FLOW TECHNOLOGY
For the development of storage systems based on redox flow technology, no rare raw materials or conflict raw materials are used, the extraction of which is often accompanied by overexploitation of humans and nature and associated impacts on the ecosystem.
100% non flammable
Operational reliability plays a major role in energy storage. In this regard, redox flow technology offers decisive advantages over other storage technologies: The electrolyte consists exclusively of non-flammable components – including a very large proportion of pure water.
With the redox flow technology, we rely on a proven CO2-reducing and climate friendly battery technology. Thanks to the ecological redox flow storage technology, power from renewable energies can be used around the clock and actively contribute to combating climate change.
VOLTSTORAGE – SHAPING THE FUTURE OF ENERGY STORAGE
With our multi-technological approach, we create pioneering battery solutions without the use of lithium. In doing so, we rely on two resource-conserving, cost-effective and climate-friendly storage technologies: With vanadium redox flow technology, we are relying on a proven and tested technology to enable commercial customers to cover their energy needs during periods of low wind or low sun. In addition, our international research and development team is working on iron salt technology, which is a revolutionary technology for the energy storage of the future due to its unrivaled low cost and particularly high temperature resistance.