A high-performance carbon nanoparticle-decorated graphite felt electrode for vanadium redox flow batteries

L. Wei; T. S. Zhao; G. Zhao; Liang An; L. Zeng

doi:10.1016/j.apenergy.2016.05.048

A high-performance carbon nanoparticle-decorated graphite felt electrode for vanadium redox flow batteries

L. Wei, T. S. Zhao, G. Zhao, Liang An, L. Zeng

Research output: Journal article publication › Journal article › Academic research › peer-review

155 Citations (Scopus)

Abstract

Unlike conventional VRFBs with flow-through structure, in this work we create a VRFB featuring a flow-field structure with a carbon nanoparticle-decorated graphite felt electrode for the battery. This novel structure, exhibiting a significantly reduced ohmic loss through reducing electrode thickness, an increased surface area and improved electrocatalytic activity by coating carbon nanoparticles, allows the energy efficiency up to 84.8% at a current density of as high as 100 mA cm−2and the peak power density to reach a value of 508 mW cm−2. In addition, it is demonstrated that the battery with this proposed structure exhibits a substantially improved rate capability and capacity retention as opposed to conventional flow-through structured battery with thick graphite felt electrodes.

Original language	English
Pages (from-to)	74-79
Number of pages	6
Journal	Applied Energy
Volume	176
DOIs	https://doi.org/10.1016/j.apenergy.2016.05.048
Publication status	Published - 1 Jan 2016
Externally published	Yes

Keywords

Carbon nanoparticles
Energy efficiency
Thin electrode
Vanadium redox flow battery

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Energy
Mechanical Engineering
Management, Monitoring, Policy and Law

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.apenergy.2016.05.048

Cite this

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title = "A high-performance carbon nanoparticle-decorated graphite felt electrode for vanadium redox flow batteries",

abstract = "Unlike conventional VRFBs with flow-through structure, in this work we create a VRFB featuring a flow-field structure with a carbon nanoparticle-decorated graphite felt electrode for the battery. This novel structure, exhibiting a significantly reduced ohmic loss through reducing electrode thickness, an increased surface area and improved electrocatalytic activity by coating carbon nanoparticles, allows the energy efficiency up to 84.8% at a current density of as high as 100 mA cm−2and the peak power density to reach a value of 508 mW cm−2. In addition, it is demonstrated that the battery with this proposed structure exhibits a substantially improved rate capability and capacity retention as opposed to conventional flow-through structured battery with thick graphite felt electrodes.",

keywords = "Carbon nanoparticles, Energy efficiency, Thin electrode, Vanadium redox flow battery",

author = "L. Wei and Zhao, {T. S.} and G. Zhao and Liang An and L. Zeng",

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AU - Wei, L.

AU - Zhao, T. S.

AU - Zhao, G.

AU - An, Liang

AU - Zeng, L.

N1 - The work described in this paper was fully supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. 623313).

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Unlike conventional VRFBs with flow-through structure, in this work we create a VRFB featuring a flow-field structure with a carbon nanoparticle-decorated graphite felt electrode for the battery. This novel structure, exhibiting a significantly reduced ohmic loss through reducing electrode thickness, an increased surface area and improved electrocatalytic activity by coating carbon nanoparticles, allows the energy efficiency up to 84.8% at a current density of as high as 100 mA cm−2and the peak power density to reach a value of 508 mW cm−2. In addition, it is demonstrated that the battery with this proposed structure exhibits a substantially improved rate capability and capacity retention as opposed to conventional flow-through structured battery with thick graphite felt electrodes.

AB - Unlike conventional VRFBs with flow-through structure, in this work we create a VRFB featuring a flow-field structure with a carbon nanoparticle-decorated graphite felt electrode for the battery. This novel structure, exhibiting a significantly reduced ohmic loss through reducing electrode thickness, an increased surface area and improved electrocatalytic activity by coating carbon nanoparticles, allows the energy efficiency up to 84.8% at a current density of as high as 100 mA cm−2and the peak power density to reach a value of 508 mW cm−2. In addition, it is demonstrated that the battery with this proposed structure exhibits a substantially improved rate capability and capacity retention as opposed to conventional flow-through structured battery with thick graphite felt electrodes.

KW - Carbon nanoparticles

KW - Energy efficiency

KW - Thin electrode

KW - Vanadium redox flow battery

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DO - 10.1016/j.apenergy.2016.05.048

M3 - Journal article

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JO - Applied Energy

JF - Applied Energy

ER -

A high-performance carbon nanoparticle-decorated graphite felt electrode for vanadium redox flow batteries

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

More information

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