Details
| Original language | English |
|---|---|
| Article number | 114513 |
| Journal | Journal of the Electrochemical Society |
| Volume | 170 |
| Issue number | 11 |
| Publication status | Published - 2023 |
Abstract
Membranes are a key component of proton exchange membrane water electrolysis (PEMWE) cells and are exposed to various stressors during operation, which can significantly reduce cell lifetime. PEMWE membranes incorporating woven web layers within the membrane structure for mechanical reinforcement are a promising, commonly used industrial strategy to mitigate the formation of membrane defects. Within this study the structural mechanics of a PEMWE cell is investigated, specifically the woven web reinforced membrane. Experimental tensile tests are conducted on the membrane to obtain stress-strain data. These measurements were utilized to parameterize a geometrically simplified model of the woven web reinforced membrane through a tensile test simulation. The validated model is applied in a 2D-cell simulation to identify resulting stresses and strains in the membrane during various electrolysis operation modes. The results herein allow the used PEMWE cell geometry to be systematically evaluated and optimized with respect to mechanical membrane stability. For the applied PEMWE cell setup, no failure is to expect during normal operation, including varied temperatures and differential pressure. Increasing the gap size at the edge of the electrochemically active cell area, however, leads to large deformations when the gap becomes larger than 0.2 mm.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Physics and Astronomy(all)
- Condensed Matter Physics
- Materials Science(all)
- Surfaces, Coatings and Films
- Chemistry(all)
- Electrochemistry
- Materials Science(all)
- Materials Chemistry
Sustainable Development Goals
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In: Journal of the Electrochemical Society, Vol. 170, No. 11, 114513, 2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Structural Mechanics Analysis of Woven Web Reinforced Membranes in Proton Exchange Membrane Water Electrolysis
AU - Kink, Julian
AU - Ise, Martin
AU - Bensmann, Boris
AU - Junker, Philipp
AU - Hanke-Rauschenbach, Richard
N1 - Funding Information: The publication of this article was funded by the Open Access Fund of Leibniz Universität Hannover. The authors gratefully acknowledge financial support of the German BMBF within the DERIEL project (grant numbers 03HY122A and 03HY122G).
PY - 2023
Y1 - 2023
N2 - Membranes are a key component of proton exchange membrane water electrolysis (PEMWE) cells and are exposed to various stressors during operation, which can significantly reduce cell lifetime. PEMWE membranes incorporating woven web layers within the membrane structure for mechanical reinforcement are a promising, commonly used industrial strategy to mitigate the formation of membrane defects. Within this study the structural mechanics of a PEMWE cell is investigated, specifically the woven web reinforced membrane. Experimental tensile tests are conducted on the membrane to obtain stress-strain data. These measurements were utilized to parameterize a geometrically simplified model of the woven web reinforced membrane through a tensile test simulation. The validated model is applied in a 2D-cell simulation to identify resulting stresses and strains in the membrane during various electrolysis operation modes. The results herein allow the used PEMWE cell geometry to be systematically evaluated and optimized with respect to mechanical membrane stability. For the applied PEMWE cell setup, no failure is to expect during normal operation, including varied temperatures and differential pressure. Increasing the gap size at the edge of the electrochemically active cell area, however, leads to large deformations when the gap becomes larger than 0.2 mm.
AB - Membranes are a key component of proton exchange membrane water electrolysis (PEMWE) cells and are exposed to various stressors during operation, which can significantly reduce cell lifetime. PEMWE membranes incorporating woven web layers within the membrane structure for mechanical reinforcement are a promising, commonly used industrial strategy to mitigate the formation of membrane defects. Within this study the structural mechanics of a PEMWE cell is investigated, specifically the woven web reinforced membrane. Experimental tensile tests are conducted on the membrane to obtain stress-strain data. These measurements were utilized to parameterize a geometrically simplified model of the woven web reinforced membrane through a tensile test simulation. The validated model is applied in a 2D-cell simulation to identify resulting stresses and strains in the membrane during various electrolysis operation modes. The results herein allow the used PEMWE cell geometry to be systematically evaluated and optimized with respect to mechanical membrane stability. For the applied PEMWE cell setup, no failure is to expect during normal operation, including varied temperatures and differential pressure. Increasing the gap size at the edge of the electrochemically active cell area, however, leads to large deformations when the gap becomes larger than 0.2 mm.
UR - http://www.scopus.com/inward/record.url?scp=85177598594&partnerID=8YFLogxK
U2 - 10.1149/1945-7111/ad0663
DO - 10.1149/1945-7111/ad0663
M3 - Article
AN - SCOPUS:85177598594
VL - 170
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 11
M1 - 114513
ER -