https://www.scipedia.com/wd/index.php?action=history&feed=atom&title=Hacker_et_al_2018aHacker et al 2018a - Revision history2026-04-30T18:41:13ZRevision history for this page on the wikiMediaWiki 1.27.0-wmf.10https://www.scipedia.com/wd/index.php?title=Hacker_et_al_2018a&diff=191488&oldid=prevScipediacontent: Scipediacontent moved page Draft Content 813681977 to Hacker et al 2018a2021-01-28T16:35:39Z<p>Scipediacontent moved page <a href="/public/Draft_Content_813681977" class="mw-redirect" title="Draft Content 813681977">Draft Content 813681977</a> to <a href="/public/Hacker_et_al_2018a" title="Hacker et al 2018a">Hacker et al 2018a</a></p>
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</td></tr></table>Scipediacontenthttps://www.scipedia.com/wd/index.php?title=Hacker_et_al_2018a&diff=191487&oldid=prevScipediacontent: Created page with " == Abstract == Polymer electrolyte fuel cells are a promising technology for converting the chemically bound energy of hydrogen into power. In order to establish fuel cells..."2021-01-28T16:35:36Z<p>Created page with " == Abstract == Polymer electrolyte fuel cells are a promising technology for converting the chemically bound energy of hydrogen into power. In order to establish fuel cells..."</p>
<p><b>New page</b></p><div><br />
== Abstract ==<br />
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Polymer electrolyte fuel cells are a promising technology for converting the chemically bound energy of hydrogen into power. In order to establish fuel cells as a commercially viable product, the durability of membranes and electrodes in practical applications such as electric vehicles needs to be extended. The degradation mechanisms over lifetime are investigated by subjecting fuel cells to accelerated stress tests. Decomposition of the polymer electrolyte significantly affects the ionic conductivity and therefore the fuel cell performance. Cracks and tears form due to the thinning of the membrane, leading to reactant crossover and fluoride emissions. Electrochemical methods for characterizing degradation include polarization curves, electrochemical impedance spectroscopy and hydrogen diffusion current measurements. Local effects like flooding and dry-out of fuel cells are investigated using impedance spectroscopy in combination with total harmonic distortion analysis.<br />
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== Original document ==<br />
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The different versions of the original document can be found in:<br />
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* [https://zenodo.org/record/1486703 https://zenodo.org/record/1486703] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br />
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* [http://dx.doi.org/10.5281/zenodo.1486703 http://dx.doi.org/10.5281/zenodo.1486703],<br />
: [https://zenodo.org/record/1486703 https://zenodo.org/record/1486703] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br />
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* [https://zenodo.org/record/1486703 https://zenodo.org/record/1486703],<br />
: [http://dx.doi.org/10.5281/zenodo.1486702 http://dx.doi.org/10.5281/zenodo.1486702] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br />
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DOIS: 10.5281/zenodo.1486702 10.5281/zenodo.1486703</div>Scipediacontent