FUEL-CELL CATALYST-LAYER ANALYZER, AND CATALYST GEOMETRIC MODEL FOR FUEL-CELL CATALYST-LAYER ANALYSIS

摘要

PROBLEM TO BE SOLVED: To analyze a catalyst layer on the basis of an actual physical structure of the catalyst layer.

SOLUTION: The physical structure of the catalyst layer is formed into a two-dimensional geometric model so as to be suitable for numerical analysis. Elements constituting the catalyst layer are modeled into circular carbon carriers 40 and binders 42. Here, each carbon carrier 40 carries a catalyst alloy. Each binder 42 shows a function of condensing and coupling the carbon carriers 40. The carbon carriers 40 adjacent to each other are modeled when coupled with each other via the binder 42. A part surrounded by the carbon carriers 40 coupled with each other via the binder 42 is modeled as an air hole 44 that allows gas or liquid to freely come in and out. Boundary conditions are applied to the geometric model so as to execute deformation analysis of the catalyst layer by a finite element method.

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