The role of ion exchange membrane in vanadium oxygen fuel cell
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922926" target="_blank" >RIV/60461373:22310/21:43922926 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/21:43922926 RIV/49777513:23640/21:43964068
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0376738821002210?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0376738821002210?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.memsci.2021.119271" target="_blank" >10.1016/j.memsci.2021.119271</a>
Alternative languages
Result language
angličtina
Original language name
The role of ion exchange membrane in vanadium oxygen fuel cell
Original language description
The effect of membrane properties on the vanadium-oxygen fuel cell performance was studied on a series of commercially available ion exchange membranes of different thickness and ion exchange capacity by selected characterization techniques including electrochemical impedance spectroscopy (ohmic and charge transfer resistance), steady load curves (performance stability) and galvanostatic charge-discharge cycles (efficiencies and capacity decay). Performance stability of the fuel cell was studied under defined conditions (state of charge, temperature, air flow rate) using continuous charging of vanadium electrolyte. In contrast to the previous studies, our results revealed that the membrane affects the fuel cell performance mainly via water management in the catalytic layer of gas diffusion cathode, while vanadium permeation across the membrane has only a minor impact. Generally, the fuel cell shows improved performance stability for more conductive membranes (thinner and with higher ion-exchange capacity), partially due to reduced ohmic losses, but more significantly due to the better ability of the membrane to drain water from the cathode via osmosis, which prevents the flooding of the cathodic catalytic layer. With the optimized membrane, we achieved stable fuel cell performance at the highest current and power density values reported (75 mA cm−2 and 57 mW cm−2 in 50% state of charge). © 2021 Elsevier B.V.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20401 - Chemical engineering (plants, products)
Result continuities
Project
<a href="/en/project/TK02030001" target="_blank" >TK02030001: Research and development of advanced flow energy storage technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Membrane Science
ISSN
0376-7388
e-ISSN
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Volume of the periodical
629
Issue of the periodical within the volume
neuvedeno
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
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UT code for WoS article
000647729500005
EID of the result in the Scopus database
2-s2.0-85103370353