Hydrogen-Bromine RFB :Electrochemical Measurements and Cell Performance of a 40cm² H/Br-RFB System
Anode: H2 -> 2 H+ +2 e- E0 = 0.00 V
Cathode: Br2 +2 e- -> 2 Br- E0 = + 1.06 V
Cell: H2 + Br2 -> 2 HBr E = 1.06 V
Although the first studies were made in the 80s of the last century , the research intensified due to these positive characteristics in the last years [2, 3]. For a viable use, hydrogen storage, bromine diffusion, bromine complexation and system behavior are the biggest challenges.
In this work we want to present the results of the development and the construction of an H/Br-RFB with an active area of 40 cm² and its behavior at different electrolyte compositions, temperatures and current densities. For better identification of the properties the half-cell potentials and impedances were also measured and evaluated. This research forms the basis for our future studies involving the use of advanced bromine complexation agents (BCAs) and their impact on H/Br-RFB.
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