In-situ determination of mea resistance and electrode...

Details In-situ determination of mea resistance and electrode... In-situ determination of mea resistance and electrode...

G - Physics

01

R

G01R 31/36 (2006.01) G01N 13/00 (2006.01) G01R 27/02 (2006.01)

Patent

CA 2484670

This paper describes a novel method to determine MEA-Resistance and Electrode Diffusion coefficient for a fuel cell (MRED-method) under in-situ conditions. It is shown that the MRED-method allows the determination of i) the mass transport free ohmic resistance of a MEA and ii) the mass-transport coefficient of the electrodes. The method is based on the galvanostatic discharge of a fuel cell without reactant supply from the outside. Application of the method to the cathode of a PEM fuel cell is demonstrated and the experimental results are analyzed using a theoretical model based on a simple 1-dimensional diffusion process using Fick's law. The observed independence of the O2 mass transport coefficient of gas composition and pressure indicates that diffusion in the active layer is mass transport limiting.

Affiliated with

Also associated with

Rating

In-situ determination of mea resistance and electrode... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with In-situ determination of mea resistance and electrode..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-situ determination of mea resistance and electrode... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1408482