J. Electrochem. Sci. Eng.  

Modelling the leakage current in a solid oxide fuel cell with bi-layer electrolyte

Balaji Krishnamurthy, Hariharan Ramasubramanian

Abstract


A mathematical model is developed to study the leakage current in a solid oxide fuel cell (SOFC) with a bi-layer electrolyte. The model predicts the variation of leakage current and power density with various design and operating factors of SOFC, namely thickness of the bi-layer electrolyte, operating temperature and operating cell voltage. The interfacial oxygen pressure in SOFC is also studied as a function of the thickness of YSZ layer. Modelling results are compared with experimental data and found to compare well.


Keywords


Anodization; pencil graphite electrode; dopamine; uric acid; ascorbic acid

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DOI: http://dx.doi.org/10.5599/jese.770



jESE : : Open Access Journal  :  : ISSN 1847-9286