Furthermore, the development of a demonstrator in close collaboration with all project partners is planned. Schubert) are responsible for the development and optimization of suitable electrolytes while the Volterion GmbH designs a readily scalable cell and module concept. The project partners JenaBatteries GmbH and Friedrich-Schiller-Universität Jena (Prof. 1 – Scheme of a direct photochargeable redox flow battery (Photo-RFB).ĭifferent photo-electrodes and electrolytes are developed and optimized in this project. Finally, a new modular cell design of Photo-RFB cells has to be engineered for the low cost, industrial scale production of such devices. Besides the development of the system and all of its components, essential information about efficiency and limiting factors of this new technology will be collected. Design, characterization and optimization of photoanode materials that match the electrochemical properties of new, to be developed water-soluble, organic electrolytes especially redox polymers as well as the corresponding membrane materials are main points of this project. For this purpose, a robust testing setup will be developed and a reference system established. Abstract We report a photochemical flow setup that exploits -orthogonal reactions using two different colours of light (1350 nm and 2410 nm) in sequential on-line irradiation steps. Moreover, the Photo-RFB will help reducing the load on the power grid by conventional electrochemical flow battery charging. We will directly convert sunlight into electrochemical energy stored in a redox flow battery and make use of the accumulated solar thermal energy in the new devices. Within this joint project the advantages of solar cells and redox flow batteries for the efficient storage of electricity from renewable energy sources shall be combined for the development of a photo redox flow battery (Photo-RFB, Fig. Schubertīundesministerium für Wirtschaft und Energie
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