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000897483 1001_ $$0P:(DE-Juel1)129878$$aKulikovsky, Andrei$$b0$$eCorresponding author$$ufzj
000897483 245__ $$aAnalytical model for PEM fuel cell concentration impedance
000897483 260__ $$aNew York, NY [u.a.]$$bElsevier$$c2021
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000897483 520__ $$aAnalytical model for concentration/pressure (zeta) impedance of the cathode side of a PEM fuel cell is developed. The model is based on transient oxygen mass transport equations through the gas-diffusion and cathode catalyst layers. Analytical solution for zeta-impedance is derived and the relation of zeta-impedance and regular cell impedance is obtained. In the limit of high oxygen consumption in the catalyst layer, simple equations for the static point of zeta impedance are derived. These equations allow one to estimate oxygen transport coefficients of the catalyst and gas diffusion layers from the static point of zeta-spectrum. Qualitative resemblance of the model and experimental zeta-spectrum is demonstrated.
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000897483 773__ $$0PERI:(DE-600)1491150-4$$a10.1016/j.jelechem.2021.115672$$gVol. 899, p. 115672 -$$p115672 -$$tJournal of electroanalytical chemistry$$v899$$x1572-6657$$y2021
000897483 8564_ $$uhttps://juser.fz-juelich.de/record/897483/files/Analytical%20model%20for%20PEM%20fuel%20cell%20concentration%20impedance.pdf$$yPublished on 2021-09-07. Available in OpenAccess from 2023-09-07.
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