The 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.

Facchinetti, I., Cobani, E., Brogioli, D., La Mantia, F., Ruffo, R. (2020). Thermally Regenerable Redox Flow Battery. CHEMSUSCHEM, 13(20), 5460-5467 [10.1002/cssc.202001799].

Thermally Regenerable Redox Flow Battery

Facchinetti I.
Primo
;
Cobani E.;Brogioli D.;Ruffo R.
Ultimo
2020

Abstract

The 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.
Articolo in rivista - Articolo scientifico
bromine; concentration cells; low-temperature heat; membranes; redox couples;
English
24-ago-2020
2020
13
20
5460
5467
reserved
Facchinetti, I., Cobani, E., Brogioli, D., La Mantia, F., Ruffo, R. (2020). Thermally Regenerable Redox Flow Battery. CHEMSUSCHEM, 13(20), 5460-5467 [10.1002/cssc.202001799].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/297976
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