000892694 001__ 892694 000892694 005__ 20240712113254.0 000892694 0247_ $$2doi$$a10.1016/j.jpowsour.2021.230036 000892694 0247_ $$2ISSN$$a0378-7753 000892694 0247_ $$2ISSN$$a1873-2755 000892694 0247_ $$2Handle$$a2128/27830 000892694 0247_ $$2WOS$$aWOS:000659060900002 000892694 0247_ $$2altmetric$$aaltmetric:108081912 000892694 037__ $$aFZJ-2021-02272 000892694 082__ $$a620 000892694 1001_ $$0P:(DE-Juel1)171318$$aHoppe, Eugen$$b0$$eCorresponding author 000892694 245__ $$aThe impact of flow field plate misalignment on the gas diffusion layer intrusion and performance of a high-temperature polymer electrolyte fuel cell 000892694 260__ $$aNew York, NY [u.a.]$$bElsevier$$c2021 000892694 3367_ $$2DRIVER$$aarticle 000892694 3367_ $$2DataCite$$aOutput Types/Journal article 000892694 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1621944266_4896 000892694 3367_ $$2BibTeX$$aARTICLE 000892694 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000892694 3367_ $$00$$2EndNote$$aJournal Article 000892694 520__ $$aTolerances in the production process of flow field plates for polymer electrolyte fuel cells (PEFCs) and the assembly of single cells and stacks can lead to a misalignment among the flow field plates. Due to clamping and misalignment, shear stresses can be forced on the membrane electrode assembly (MEA). Furthermore, the gas diffusion layer (GDL) intrudes into the channel. In this study, five different degrees of misalignment (0 to ) are applied to a fuel cell model consisting of two flow field plates with five adjacent channels each (1 mm width) and an MEA in between them. For each degree, the MEA is compressed by about 30% and 3D images (tomograms) are recorded using an X-ray computer tomograph (CT). Analyzing the cross-section of the channels, the maximum intrusion depth varies for each channel. Furthermore, the shape of the membrane becomes ever more wavelike, with increasing misalignment and the position of the maximum intrusion depth shifts sideways from the center of the channel. Additionally, high-temperature polymer electrolyte fuel cell (HT-PEFC) single cell experiments are carried out. Two degrees of misalignment are set (normal assembly and ). 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