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Title: Membrane catalyst layer for fuel cells

Abstract

A gas reaction fuel cell incorporates a thin catalyst layer between a solid polymer electrolyte (SPE) membrane and a porous electrode backing. The catalyst layer is preferably less than about 10 {mu}m in thickness with a carbon supported platinum catalyst loading less than about 0.35 mgPt/cm{sup 2}. The film is formed as an ink that is spread and cured on a film release blank. The cured film is then transferred to the SPE membrane and hot pressed into the surface to form a catalyst layer having a controlled thickness and catalyst distribution. The layer has adequate gas permeability so that cell performance is not affected and has a density and particle distribution effective to optimize proton access to the catalyst and electronic continuity for electron flow from the half-cell reaction occurring at the catalyst.

Inventors:
Publication Date:
Research Org.:
Los Alamos National Lab., NM (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
7054566
Patent Number(s):
PATENTS-US-A7656329
Application Number:
ON: DE93002001; PPN: US 7-656329
Assignee:
Dept. of Energy
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent Application
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; CATALYST SUPPORTS; DESIGN; SOLID ELECTROLYTE FUEL CELLS; ELECTROCATALYSTS; INVENTIONS; MEMBRANES; PLATINUM; POLYMERS; CATALYSTS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELEMENTS; FUEL CELLS; METALS; PLATINUM METALS; TRANSITION ELEMENTS; 300503* - Fuel Cells- Materials, Components, & Auxiliaries

Citation Formats

Wilson, M S. Membrane catalyst layer for fuel cells. United States: N. p., 1991. Web.
Wilson, M S. Membrane catalyst layer for fuel cells. United States.
Wilson, M S. 1991. "Membrane catalyst layer for fuel cells". United States.
@article{osti_7054566,
title = {Membrane catalyst layer for fuel cells},
author = {Wilson, M S},
abstractNote = {A gas reaction fuel cell incorporates a thin catalyst layer between a solid polymer electrolyte (SPE) membrane and a porous electrode backing. The catalyst layer is preferably less than about 10 {mu}m in thickness with a carbon supported platinum catalyst loading less than about 0.35 mgPt/cm{sup 2}. The film is formed as an ink that is spread and cured on a film release blank. The cured film is then transferred to the SPE membrane and hot pressed into the surface to form a catalyst layer having a controlled thickness and catalyst distribution. The layer has adequate gas permeability so that cell performance is not affected and has a density and particle distribution effective to optimize proton access to the catalyst and electronic continuity for electron flow from the half-cell reaction occurring at the catalyst.},
doi = {},
url = {https://www.osti.gov/biblio/7054566}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {2}
}