摘要：Due to the advantages of low cost and good stability, iron-chromium flow batteries (ICRFBs) have been widely used in energy storage development. However, issues such as poor Cr3+/Cr2+ activity still need to be addressed urgently. To improve the slow reaction kinetics of the Cr redox pairs, we propose a method of preparing nano bismuth catalyst modified carbon cloth electrode (TBCC) based on intrinsic defect assisted catalyst attachment. By utilizing the carbon thermal reaction to firmly adhere the bismuth catalyst to the electrode surface, the electrochemical performance and reaction kinetics of the TBCC electrode are significantly improved. It proved that the polarization of the battery assembled with the modified electrode was reduced, and the energy efficiency was significantly improved compared to the original carbon cloth electrode. Charging and discharging tests were conducted at a high current density of 140 mA/cm2, achieving average energy efficiency of up to 82.9%, and even achieving ultra-high energy efficiency of 88.95% at the current density of 80 mA/cm2. This provides broad prospects for the commercialization of ICRFBs. ? The Author(s) 2025.

ISSN号：2791-0091

卷、期、页：卷4期1

发表日期：2025-03-01

期刊分区（SCI为中科院分区）：一区

收录情况：EI（工程索引）

发表期刊名称：Nano Research Energy

通讯作者：刘银萍,郭超,武光富,吕文杰,周睿辰,邱伟

第一作者：周洋,徐泉,徐春明,牛迎春

论文类型：期刊论文

论文概要：刘银萍,郭超,武光富,吕文杰,周睿辰,邱伟,周洋,徐泉,徐春明,牛迎春，Uniformly dispersed bismuth metal nano catalyst modified carbon cloth electrode for iron-chromium flow battery，Nano Research Energy，2025，卷4期1

论文题目：Uniformly dispersed bismuth metal nano catalyst modified carbon cloth electrode for iron-chromium flow battery