Performance Study of Nickel Oxide Graphite Felts as Electrode Materials for Ferrochromium Flow Batteries
Year: 2025
Type: article
Abstract: Herein, the performance of nickel‐oxide‐modified graphite felts as electrode materials for Fe/Cr liquid flow batteries is investigated by combining density functional theory and experiments. The results show that the adsorption of NiO on Fe/Cr ions is more stable than that on graphite felt, and more electrochemically active sites are provided. The charge transfer after adsorption is larger, which is more conducive to the redox reaction during the charging and discharging processes. Finally, the experimental results further prove that the first discharge capacity of the nickel oxide‐modified graphite felt reaches 22.0 Ah L, which is much higher than that of the unmodified graphite felt (12.4 Ah L). In addition, its energy efficiency could reach up to 59.5%, which is 27.3% higher than that of the original electrode.
Source: ChemistryOpen
Authors: Jia‐ning Xie, Xu Dai, Meng‐yao Liu, Xuan‐sen Li, Rui‐xian Feng, Hai‐lin Ren, Hao‐wen Wang, Xiao‐min Wang
Institution: Kashi University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,790
OpenAlex ID: W4413909479