Graphite Felt Electrode Modified by Quaternary Ammonium for Vanadium Redox Flow Battery with an Ultra-Long Cycle Life

Xuejiao Liu; Junping Hu; Jun Liu; Hongyi Liu; Sha Fu; Xiongwei Wu; Yuping Wu

doi:10.3390/inorganics10110208

Graphite Felt Electrode Modified by Quaternary Ammonium for Vanadium Redox Flow Battery with an Ultra-Long Cycle Life

Xuejiao Liu, Junping Hu, Jun Liu, Hongyi Liu, Sha Fu, Xiongwei Wu, Yuping Wu

School of energy science and engineering

Hunan Agricultural University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Vanadium redox flow batteries (VRFBs) are one of the most attractive devices for grid-scale energy storage due to their advantages of high safety, flexible assembly, and electrolyte-class recycling. However, the conventional graphite felt electrodes usually possess inferior electrocatalytic activity for vanadium ion redox reactions, vastly limiting the rate and lifespans of VRFBs. Herein, we demonstrate a high-rate and ultra-stable vanadium redox flow battery based on quaternary ammonium salt-modified graphite felt electrodes. At a high current density of 200 mA cm⁻², the constructed VRFB exhibited a superior cycling life of up to 1000 cycles. This work affords a straightforward approach for developing efficient, environmentally friendly, and low-cost graphite felt electrodes for ultra-stable and high-rate VRFBs.

Original language	English
Article number	208
Journal	Inorganics
Volume	10
Issue number	11
DOIs	https://doi.org/10.3390/inorganics10110208
State	Published - Nov 2022

Keywords

graphite felt
quaternary ammonium salt
vanadium redox flow battery

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10.3390/inorganics10110208

Cite this

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title = "Graphite Felt Electrode Modified by Quaternary Ammonium for Vanadium Redox Flow Battery with an Ultra-Long Cycle Life",

abstract = "Vanadium redox flow batteries (VRFBs) are one of the most attractive devices for grid-scale energy storage due to their advantages of high safety, flexible assembly, and electrolyte-class recycling. However, the conventional graphite felt electrodes usually possess inferior electrocatalytic activity for vanadium ion redox reactions, vastly limiting the rate and lifespans of VRFBs. Herein, we demonstrate a high-rate and ultra-stable vanadium redox flow battery based on quaternary ammonium salt-modified graphite felt electrodes. At a high current density of 200 mA cm−2, the constructed VRFB exhibited a superior cycling life of up to 1000 cycles. This work affords a straightforward approach for developing efficient, environmentally friendly, and low-cost graphite felt electrodes for ultra-stable and high-rate VRFBs.",

keywords = "graphite felt, quaternary ammonium salt, vanadium redox flow battery",

author = "Xuejiao Liu and Junping Hu and Jun Liu and Hongyi Liu and Sha Fu and Xiongwei Wu and Yuping Wu",

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doi = "10.3390/inorganics10110208",

language = "英语",

volume = "10",

journal = "Inorganics",

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TY - JOUR

T1 - Graphite Felt Electrode Modified by Quaternary Ammonium for Vanadium Redox Flow Battery with an Ultra-Long Cycle Life

AU - Liu, Xuejiao

AU - Hu, Junping

AU - Liu, Jun

AU - Liu, Hongyi

AU - Fu, Sha

AU - Wu, Xiongwei

AU - Wu, Yuping

PY - 2022/11

Y1 - 2022/11

N2 - Vanadium redox flow batteries (VRFBs) are one of the most attractive devices for grid-scale energy storage due to their advantages of high safety, flexible assembly, and electrolyte-class recycling. However, the conventional graphite felt electrodes usually possess inferior electrocatalytic activity for vanadium ion redox reactions, vastly limiting the rate and lifespans of VRFBs. Herein, we demonstrate a high-rate and ultra-stable vanadium redox flow battery based on quaternary ammonium salt-modified graphite felt electrodes. At a high current density of 200 mA cm−2, the constructed VRFB exhibited a superior cycling life of up to 1000 cycles. This work affords a straightforward approach for developing efficient, environmentally friendly, and low-cost graphite felt electrodes for ultra-stable and high-rate VRFBs.

AB - Vanadium redox flow batteries (VRFBs) are one of the most attractive devices for grid-scale energy storage due to their advantages of high safety, flexible assembly, and electrolyte-class recycling. However, the conventional graphite felt electrodes usually possess inferior electrocatalytic activity for vanadium ion redox reactions, vastly limiting the rate and lifespans of VRFBs. Herein, we demonstrate a high-rate and ultra-stable vanadium redox flow battery based on quaternary ammonium salt-modified graphite felt electrodes. At a high current density of 200 mA cm−2, the constructed VRFB exhibited a superior cycling life of up to 1000 cycles. This work affords a straightforward approach for developing efficient, environmentally friendly, and low-cost graphite felt electrodes for ultra-stable and high-rate VRFBs.

KW - graphite felt

KW - quaternary ammonium salt

KW - vanadium redox flow battery

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U2 - 10.3390/inorganics10110208

DO - 10.3390/inorganics10110208

M3 - 文章

AN - SCOPUS:85149498479

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JO - Inorganics

JF - Inorganics

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ER -

Graphite Felt Electrode Modified by Quaternary Ammonium for Vanadium Redox Flow Battery with an Ultra-Long Cycle Life

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Keywords

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