Two-in-one strategy for optimizing chemical and structural properties of carbon felt electrodes for vanadium redox flow batteries.

ABSTRACT: Vanadium redox flow batteries (VRFBs) have received significant attention for use in large-scale energy storage systems (ESSs) because of their long cycle life, flexible capacity, power design, and safety. However, the poor electrochemical activity of the conventionally used carbon felt electrode results in low energy efficiency of the VRFBs and consequently impedes their commercialization. In this study, a carbon felt (CF) electrode with numerous nanopores and robust oxygen-containing functional groups at its edge sites is designed to improve the electrochemical activity of a carbon felt electrode. To achieve this, Ni metal nanoparticles were initially precipitated on the surface of the CF electrode, followed by etching of the precipitated Ni nanoparticles on the CF electrode using sulfur

SUBMITTER: Park SJ 

PROVIDER: S-EPMC10962290 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature