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CMBlu and MANN+HUMMEL team up for large-scale battery storage by Staff Writers Frankfurt, Germany (SPX) Apr 03, 2019
CMBlu Energy AG and MANN+HUMMEL GmbH have signed an agreement for the joint development and industrialization of energy converters for organic redox flow batteries. The aim of both partners is to support electric mobility through the development of the charging infrastructure and offer the energy sector a sustainable and highly cost-efficient storage technology for a successful energy transition. The business idea for redox flow batteries with organic electrolytes derived from lignin ('Organic Flow') was already conceived in 2011 and since 2014, CMBlu has carried out intensive research and development. These batteries essentially consist of two tanks of liquid electrolyte and an energy converter, which consists of a large number of adjacent rows of cells and is therefore also referred to as a battery stack. The liquids are pumped through the battery stacks and is charged or discharged as required. The technology developed by CMBlu has now reached the prototype stage. The further development and industrialization of the battery stack is regulated in the long-term cooperation agreement with MANN+HUMMEL. For this purpose MANN+HUMMEL has created a spin-off named i2M GmbH (innovation-to-market), which is dedicated to the development and commercialization of innovative technologies. In the next step MANN+HUMMEL will build a complete production line in an European plant. CMBlu will realize special pilot projects with reference customers in the next two years. Starting in 2021, CMBlu plans to market the first commercial systems.
Benefits of Organic Flow Batteries The number of stacks defines the output of the batteries. A higher number of stacks multiplies the output. The capacity of the battery is only limited by the size of the tanks. This allows flexible customization to take into account the respective application area. For example, solar power can be stored for several hours and then fed into the grid at night. In order to achieve cost-effective mass production, the most important components in the stack were adjusted to the organic electrolyte. In this process, almost the entire value chain for the stacks can be supplied locally. There is no dependency on imports from other countries. In addition, the battery stacks do not require rare-earth metals or heavy metals. The aqueous electrolytes in the system are not combustible or explosive and can be used safely.
Variety of Applications in the Grid The batteries enable a buffer storage to relieve power grids which do not have to be upgraded for additional loads. It enables simultaneous fast charging of electric vehicles. Ultimately, a decentralized charging network for electric vehicles will only be possible in connection with a high performance and scalable energy storage system.
Nature as a Model for Energy Storage " Our technology enables a very large and cost-effective energy storage system. The battery stack is the core of the system and requires the highest quality and process reliability in the production process. MANN+HUMMEL is a perfect partner in the industrialization process.", explains CMBlu CEO Peter Geigle. "In line with our strategic initiatives to promote clean air and clean mobility, we were very interested in the technology of CMBlu right from the start. We believe that the expertise, product range and experience of MANN+HUMMEL offer considerable advantages for the production of battery stacks in order to quickly achieve the required performance level and make the technology cost-effective. "The manufacture of electrolytes includes a number of filtration steps, which MANN+HUMMEL performs using new special membranes. This technology further expands our product range and at the same time contributes to build the infractruture needed for electric vehicles", says Charles Vaillant, Chief Technology Officer at MANN+HUMMEL. "This also enables us to make a significant contribution towards a sustainable energy transition globally."
New 'blue-green' solution for recycling world's batteries Houston TX (SPX) Apr 02, 2019 Rice University researchers literally have a solution to deal with the glut of used lithium-ion batteries left behind by the ever-increasing demand for electric vehicles, cellphones and other electronic devices. The Rice lab of materials scientist Pulickel Ajayan used an environmentally friendly deep eutectic solvent to extract valuable elements from the metal oxides commonly used as cathodes in lithium-ion batteries. The goal, researchers said, is to curtail the use of harsh processes to recycle ... read more
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