Cr 3 C 2 /Cr 2 O 3 dual-phase surface engineering of graphite felt for enhanced conductivity and catalytic activity in vanadium redox flow batteries

Key Points

• This research aims to enhance the conductivity and catalytic performance of graphite felt in vanadium redox flow batteries.
• Developed a dual-phase surface using Cr3C2 and Cr2O3 on graphite felt.
• Evaluated charge-transfer resistance across high current densities.
• Demonstrated reduced charge-transfer resistance, improving overall battery efficiency at high current densities.
• Observed stable performance in vanadium redox flow batteries post-engineering.