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Impact of heterogeneous electrode design on vanadium redox flow batteries with different flow fields
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Jie SUN1, Menglian ZHENG2,3, Mengxin YU1, Jinbo CHEN1, Jianxin LI1, Changxing HU1. Impact of heterogeneous electrode design on vanadium redox flow batteries with different flow fields[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .
@article{title="Impact of heterogeneous electrode design on vanadium redox flow batteries with different flow fields",
author="Jie SUN1, Menglian ZHENG2,3, Mengxin YU1, Jinbo CHEN1, Jianxin LI1, Changxing HU1",
journal="Journal of Zhejiang University Science A",
volume="-1",
number="-1",
pages="",
year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2500239"
}
%0 Journal Article
%T Impact of heterogeneous electrode design on vanadium redox flow batteries with different flow fields
%A Jie SUN1
%A Menglian ZHENG2
%A 3
%A Mengxin YU1
%A Jinbo CHEN1
%A Jianxin LI1
%A Changxing HU1
%J Journal of Zhejiang University SCIENCE A
%V -1
%N -1
%P
%@ 1673-565X
%D 1998
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2500239
TY - JOUR
T1 - Impact of heterogeneous electrode design on vanadium redox flow batteries with different flow fields
A1 - Jie SUN1
A1 - Menglian ZHENG2
A1 - 3
A1 - Mengxin YU1
A1 - Jinbo CHEN1
A1 - Jianxin LI1
A1 - Changxing HU1
J0 - Journal of Zhejiang University Science A
VL - -1
IS - -1
SP -
EP -
%@ 1673-565X
Y1 - 1998
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2500239
Abstract: With the rapid progress of processing technology, the heterogeneous optimization design of porous electrodes is becoming practicable. Nevertheless, there is currently a lack of understanding of the relevant theoretical foundation. In this study, we systematically examined the influence and mechanism of various carbon paper stacking schemes on the performance of vanadium redox flow batteries (VRFBs) with different flow fields (interdigitated flow field, IFF, and serpentine flow field, SFF) through experiments and simulations. We found that the optimization of porous electrode heterogenization showed significant differences. For the IFF, optimizing the porous electrode structure remarkably improved the mass transfer effect near the membrane, thus enhancing the performance of VRFBs. For the SFF, the effectiveness of electrode structure optimization was manifested mainly in improvement of the permeability of the porous electrode. Furthermore, the effectiveness of the heterogeneous design of the porous electrode depended on a balanced relationship between the mass transfer rate of the reactants and the rate of the electrochemical reaction. The damk?hler number was introduced to measure this balance and serve as a basis for subsequent optimization.
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