X-ray micro-tomography as a diagnostic tool for the electrode degradation in vanadium redox flow batteries

Panagiotis Trogadas; Oluwadamilola O. Taiwo; Bernhard Tjaden; Tobias P. Neville; Sukhwan Yun; Javier Parrondo; Vijay Ramani; Marc Olivier Coppens; Dan J.L. Brett; Paul R. Shearing

doi:10.1016/j.elecom.2014.09.010

X-ray micro-tomography as a diagnostic tool for the electrode degradation in vanadium redox flow batteries

Panagiotis Trogadas
, Oluwadamilola O. Taiwo
, Bernhard Tjaden
, Tobias P. Neville
, Sukhwan Yun
, Javier Parrondo
, Vijay Ramani
, Marc Olivier Coppens
, Dan J.L. Brett
, Paul R. Shearing

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

73 Scopus citations

Abstract

Micro-tomography (CT) can be successfully employed to characterize ex situ the structural changes occurring in graphite felt electrodes during vanadium redox flow battery (VRFB) operation. Coupled high resolution X-ray and electron microscopy in conjunction with XPS are used to elucidate the microstructural and chemical changes to the high voltage RFB carbon electrode. The results reveal the onset of corrosion of the carbon felt structure relatively early in the VRFB life-cycle, extended operation is expected to result in extensive microstructural evolution effects.

Original language	English
Pages (from-to)	155-159
Number of pages	5
Journal	Electrochemistry Communications
Volume	48
DOIs	https://doi.org/10.1016/j.elecom.2014.09.010
State	Published - Nov 2014

Keywords

Electrode degradation
Vanadium redox flow battery
X-ray micro-tomography

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10.1016/j.elecom.2014.09.010

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@article{7782794a544241a1946b69e7261bca7e,

title = "X-ray micro-tomography as a diagnostic tool for the electrode degradation in vanadium redox flow batteries",

abstract = "Micro-tomography (CT) can be successfully employed to characterize ex situ the structural changes occurring in graphite felt electrodes during vanadium redox flow battery (VRFB) operation. Coupled high resolution X-ray and electron microscopy in conjunction with XPS are used to elucidate the microstructural and chemical changes to the high voltage RFB carbon electrode. The results reveal the onset of corrosion of the carbon felt structure relatively early in the VRFB life-cycle, extended operation is expected to result in extensive microstructural evolution effects.",

keywords = "Electrode degradation, Vanadium redox flow battery, X-ray micro-tomography",

author = "Panagiotis Trogadas and Taiwo, \{Oluwadamilola O.\} and Bernhard Tjaden and Neville, \{Tobias P.\} and Sukhwan Yun and Javier Parrondo and Vijay Ramani and Coppens, \{Marc Olivier\} and Brett, \{Dan J.L.\} and Shearing, \{Paul R.\}",

note = "Publisher Copyright: {\textcopyright} 2014 Published by Elsevier B.V.",

year = "2014",

month = nov,

doi = "10.1016/j.elecom.2014.09.010",

language = "English",

volume = "48",

pages = "155--159",

journal = "Electrochemistry Communications",

issn = "1388-2481",

}

TY - JOUR

T1 - X-ray micro-tomography as a diagnostic tool for the electrode degradation in vanadium redox flow batteries

AU - Trogadas, Panagiotis

AU - Taiwo, Oluwadamilola O.

AU - Tjaden, Bernhard

AU - Neville, Tobias P.

AU - Yun, Sukhwan

AU - Parrondo, Javier

AU - Ramani, Vijay

AU - Coppens, Marc Olivier

AU - Brett, Dan J.L.

AU - Shearing, Paul R.

PY - 2014/11

Y1 - 2014/11

N2 - Micro-tomography (CT) can be successfully employed to characterize ex situ the structural changes occurring in graphite felt electrodes during vanadium redox flow battery (VRFB) operation. Coupled high resolution X-ray and electron microscopy in conjunction with XPS are used to elucidate the microstructural and chemical changes to the high voltage RFB carbon electrode. The results reveal the onset of corrosion of the carbon felt structure relatively early in the VRFB life-cycle, extended operation is expected to result in extensive microstructural evolution effects.

AB - Micro-tomography (CT) can be successfully employed to characterize ex situ the structural changes occurring in graphite felt electrodes during vanadium redox flow battery (VRFB) operation. Coupled high resolution X-ray and electron microscopy in conjunction with XPS are used to elucidate the microstructural and chemical changes to the high voltage RFB carbon electrode. The results reveal the onset of corrosion of the carbon felt structure relatively early in the VRFB life-cycle, extended operation is expected to result in extensive microstructural evolution effects.

KW - Electrode degradation

KW - Vanadium redox flow battery

KW - X-ray micro-tomography

UR - https://www.scopus.com/pages/publications/84907468298

U2 - 10.1016/j.elecom.2014.09.010

DO - 10.1016/j.elecom.2014.09.010

M3 - Article

AN - SCOPUS:84907468298

SN - 1388-2481

VL - 48

SP - 155

EP - 159

JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -

X-ray micro-tomography as a diagnostic tool for the electrode degradation in vanadium redox flow batteries

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Keywords

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