Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO₃ as a Positive Electrode.

ABSTRACT: Vanadium redox flow batteries (VRFBs) are appealing large-scale energy storage systems due to their unique properties of independent energy/power design. The VRFBs stack design is crucial for technology deployment in power applications. Besides the design, the stack suffers from high voltage losses caused by the electrodes. The introduction of active sites into the electrode to facilitate the reaction kinetic is crucial in boosting the power rate of the VRFBs. Here, an O-rich layer has been applied onto structured graphite felt (GF) by depositing WO₃ to increase the oxygen species content. The oxygen species are the active site during the positive reaction (VO₂ ⁺/VO²⁺) in VRFB. The increased electrocatalytic activity is demonstrated by the monocl

SUBMITTER: Mousavihashemi S 

PROVIDER: S-EPMC10100004 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature