Facchinetti, IreneIreneFacchinettiCobani, ElkidElkidCobaniBrogioli, DorianoDorianoBrogioliLa Mantia, FabioFabioLa MantiaRuffo, RiccardoRiccardoRuffo2025-03-262025-03-262020-08-241864-564Xhttps://media.suub.uni-bremen.de/handle/elib/8741https://doi.org/10.26092/elib/3658The efficient production of energy from low-temperature heat sources (below 100 °C) would open the doors to the exploitation of a huge amount of heat sources such as solar, geothermal, and industrial waste heat. Thermal regenerable redox-flow batteries (TRBs) are flow batteries that store energy in concentration cells that can be recharged by distillation at temperature <100 °C, exploiting low-temperature heat sources. Using a single membrane cell setup and a suitable redox couple (LiBr/Br2), a TRB has been developed that is able to store a maximum volumetric energy of 25.5 Wh dm−3, which can be delivered at a power density of 8 W m−2. After discharging 30 % of the volumetric energy, a total heat-to-electrical energy conversion efficiency of 4 % is calculated, the highest value reported so far in harvesting of low-temperature heat.enAlle Rechte vorbehaltenAlle Rechte vorbehaltenBromineconcentration cellslow-temperature heatmembranesredox couples600 Technik, Medizin, angewandte Wissenschaften::600 Technik::600 Technik, TechnologieText::Zeitschrift::Wissenschaftlicher Artikel10.26092/elib/3658urn:nbn:de:gbv:46-elib87418