Method for determining distribution of local current in core of proton exchange membrane fuel cell, involves calculating local current density around considered wire for each of various values of total current density by applying Ohm's law

摘要

The method involves placing a set of conducting wires (Wi) between a catalytic layer (CL-b) and a gas diffusion layer (GDL-b) of an electrode (C). A total ohmic resistance of each wire, which is equal to a slope of a linear part of a curve corresponding to a range of total current density extending from 0 to a determined value, is calculated. A local current density around the considered wire is calculated for each of the various values of total current density by applying Ohm's law by taking measurement of voltage on the wire related to the calculated total ohmic resistance.