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Title: Method of making MEA for PEM/SPE fuel cell

Abstract

A method of making a membrane-electrode-assembly (MEA) for a PEM/SPE fuel cell comprising applying a slurry of electrode-forming material directly onto a membrane-electrolyte film. The slurry comprises a liquid vehicle carrying catalyst particles and a binder for the catalyst particles. The membrane-electrolyte is preswollen by contact with the vehicle before the electrode-forming slurry is applied to the membrane-electrolyte. The swollen membrane-electrolyte is constrained against shrinking in the "x" and "y" directions during drying. Following assembly of the fuel cell, the MEA is rehydrated inside the fuel cell such that it swells in the "z" direction for enhanced electrical contact with contiguous electrically conductive components of the fuel cell.

Inventors:
 [1]
  1. (West Henrietta, NY)
Issue Date:
Research Org.:
GENERAL MOTORS CORP
OSTI Identifier:
873033
Patent Number(s):
6074692
Assignee:
General Motors Corporation (Detroit, MI) OSTI
DOE Contract Number:  
AC02-90CH10435
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; mea; pem; spe; fuel; cell; membrane-electrode-assembly; comprising; applying; slurry; electrode-forming; material; directly; membrane-electrolyte; film; comprises; liquid; vehicle; carrying; catalyst; particles; binder; preswollen; contact; applied; swollen; constrained; shrinking; directions; drying; following; assembly; rehydrated; inside; swells; z; direction; enhanced; electrical; contiguous; electrically; conductive; components; electrolyte film; fuel cell; catalyst particles; electrical contact; electrically conductive; cell comprising; slurry comprises; spe fuel; forming material; enhanced electrical; liquid vehicle; catalyst particle; swollen membrane; material directly; /427/429/

Citation Formats

Hulett, Jay S. Method of making MEA for PEM/SPE fuel cell. United States: N. p., 2000. Web.
Hulett, Jay S. Method of making MEA for PEM/SPE fuel cell. United States.
Hulett, Jay S. Sat . "Method of making MEA for PEM/SPE fuel cell". United States. https://www.osti.gov/servlets/purl/873033.
@article{osti_873033,
title = {Method of making MEA for PEM/SPE fuel cell},
author = {Hulett, Jay S.},
abstractNote = {A method of making a membrane-electrode-assembly (MEA) for a PEM/SPE fuel cell comprising applying a slurry of electrode-forming material directly onto a membrane-electrolyte film. The slurry comprises a liquid vehicle carrying catalyst particles and a binder for the catalyst particles. The membrane-electrolyte is preswollen by contact with the vehicle before the electrode-forming slurry is applied to the membrane-electrolyte. The swollen membrane-electrolyte is constrained against shrinking in the "x" and "y" directions during drying. Following assembly of the fuel cell, the MEA is rehydrated inside the fuel cell such that it swells in the "z" direction for enhanced electrical contact with contiguous electrically conductive components of the fuel cell.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

Patent:

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