Publications

Citation

BibTex format

@article{Ye:2025:10.1016/j.est.2025.117765,
author = {Ye, M and Pino-Muñoz, CA and Cannon, CG and Sun, Y and Kucernak, AR and Klusener, PAA and Brandon, NP},
doi = {10.1016/j.est.2025.117765},
journal = {Journal of Energy Storage},
title = {Understanding H-X redox flow battery performance through modeling and design of experiments},
url = {http://dx.doi.org/10.1016/j.est.2025.117765},
volume = {132},
year = {2025}
}

Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This work investigates the impact of operating conditions on the performance of H-X redox flow battery (RFB),using the H-V RFB as a case study. A lumped model incorporating electrochemical kinetics and membranewater transport mechanisms was built and parameterized using polarization tests on a 25 cm2 cell under varying states of charge (SOC), temperatures and catholyte flow rates (v), following a full-factorial design of experiments. The effect of these conditions on voltage efficiency and discharge power density was analyzed. Results revealed that ohmic overpotential, driven by membrane dehydration, dominated total overpotentialeven at 100% relative humidity at the hydrogen inlet. This dehydration resulted from catholyte species uptake and water transport processes, exacerbated at high discharge current due to electro-osmotic drag driving water away from the gas side. Elevated operating temperatures mitigated dehydration, improving performance. At 1500 Am−2, 50% SOC and 70 mL min−1 v, increasing temperature from 24 to 40 C improved peak powerdensity from 2325 to 3123 W m−2 and voltage efficiency from 81.3% to 85.1%. Avoiding operating the cell at 10% or lower SOC reduced ohmic overpotential associated with membrane resistance caused by higher catholyte species uptake at low SOC. At 1500 A m−2, 32 C and 45 mL min−1 v, voltage efficiency increased from 80.7% to 82.9% as SOC was reduced from 90% to 50%, but dropped to 76.3% at 10% SOC. Catholyte flow rate had a smaller impact compared to temperature or SOC, primarily affecting concentration overpotential.
AU  - Ye,M
AU  - Pino-Muñoz,CA
AU  - Cannon,CG
AU  - Sun,Y
AU  - Kucernak,AR
AU  - Klusener,PAA
AU  - Brandon,NP
DO  - 10.1016/j.est.2025.117765
PY  - 2025///
SN  - 2352-152X
TI  - Understanding H-X redox flow battery performance through modeling and design of experiments
T2  - Journal of Energy Storage
UR  - http://dx.doi.org/10.1016/j.est.2025.117765
UR  - https://doi.org/10.1016/j.est.2025.117765
VL  - 132
ER  -

Download

Citation

BibTex format

RIS format (EndNote, RefMan)

Links

Contact Details