X-ray micro-tomography as a diagnostic tool for the electrode degradation in vanadium redox flow batteries
- Trogadas, Panagiotis
- Taiwo, Oluwadamilola O.
- Tjaden, Bernhard
- Neville, Tobias P.
- Yun, Sukhwan
- Parrondo, Javier
- Ramani, Vijay
- Coppens, Marc-Olivier
- Brett, Dan J.L.
- Shearing, Paul R.
Publication date
November 2014
DOI Publisher
The Authors. Published by Elsevier B.V. ISSN
1388-2481 Citation count (estimate)
15Abstract
AbstractMicro-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
Add to ORKG