Imperial College London
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Dr Samuel J Cooper

Faculty of Engineering, Dyson School of Design Engineering

Senior Lecturer
 
 
 
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Contact

 

samuel.cooper Website

 
 
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Location

 

Dyson BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Simon:2020:10.1149/ma2020-02603032mtgabs,
author = {Simon, BA and Gayon, Lombardo A and Pino, C and Wood, CE and Tenny, KM and Greco, K and Cooper, SJ and Forner-Cuenca, A and Brushett, FR and Kucernak, ARJ and Brandon, NP},
doi = {10.1149/ma2020-02603032mtgabs},
journal = {ECS Meeting Abstracts},
pages = {3032--3032},
title = {Combining Electrochemical, Fluid Dynamic, and Imaging Analyses to Understand the Effect of Electrode Microstructure and Electrolyte on Redox Flow Batteries},
url = {http://dx.doi.org/10.1149/ma2020-02603032mtgabs},
volume = {MA2020-02},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:p>  Understanding the interplay between electrode microstructure and cell performance of electrochemical devices is important both for modelling and experimental design. Redox Flow Batteries (RFBs) are an electrochemical energy storage technology with potential for grid-scale energy storage applications, although costs need to be further reduced to be competitive. One pathway to lowering the costs involves increasing the power density of each cell, such that fewer cells are required. This can be achieved in a variety of ways, including by improving the design of the electrode microstructures. The aim of this work is to better understand the relationship between electrode microstructure and RFB performance and, ultimately, to make inferences about electrode utility.</jats:p>               <jats:p>The performances of a variety of commercially available carbon electrodes are examined via a series of commonly used microstructural and electrochemical analyses (Figure a-c). [1] We present a comprehensive study of pore-scale mass-transport processes occurring in each of the electrodes and rationalize their effect on the overall cell performance. A matrix of electrochemical tests were carried out in a flow-through RFB cell using incremental flow rates (Figure b-c) and two non-aqueous TEMPO electrolytes with distinct viscosity and diffusivity properties. Scanning electron microscopy (SEM) was used to image the electrodes and large 3 mm samples of each were scanned using X-ray computed tomography (Figure a). A customized segmentation technique was subsequently developed that resamples the image data to ensure the fiber dimensions agree with SEM images, improving the validity of the various extracted metrics. From these images, calculations and electrochemical tests, several microstructural parameters were extracted and a pore network model was used to calculate the permeabilities of the electrodes. A 1D model was developed across half the symmetric me
AU  - Simon,BA
AU  - Gayon,Lombardo A
AU  - Pino,C
AU  - Wood,CE
AU  - Tenny,KM
AU  - Greco,K
AU  - Cooper,SJ
AU  - Forner-Cuenca,A
AU  - Brushett,FR
AU  - Kucernak,ARJ
AU  - Brandon,NP
DO  - 10.1149/ma2020-02603032mtgabs
EP  - 3032
PY  - 2020///
SP  - 3032
TI  - Combining Electrochemical, Fluid Dynamic, and Imaging Analyses to Understand the Effect of Electrode Microstructure and Electrolyte on Redox Flow Batteries
T2  - ECS Meeting Abstracts
UR  - http://dx.doi.org/10.1149/ma2020-02603032mtgabs
VL  - MA2020-02
ER  -
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