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Title: Membrane electrode assembly manufacturing process

Patent ·
OSTI ID:1892623
;

Methods and compositions for making fuel cell components are described. In one embodiment, the method comprises providing a substrate, and forming or adhering an electrode on the substrate, wherein the forming includes depositing an aqueous mixture comprising water, a water-insoluble component, a catalyst, and an ionomer. The water-insoluble component comprises a water-insoluble alcohol, a water-insoluble carboxylic acid, or a combination thereof. The use of such water-insoluble components results in a stable liquid medium with reduced reticulation upon drying, reduced dissolution of the substrate, and reduced penetration of the pores of the substrate.

Research Organization:
W.L. Gore & Associates, Inc., Newark, DE (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC36-08GO18052
Assignee:
W. L. Gore & Associates, Inc. (Newark, DE)
Patent Number(s):
11,251,453
Application Number:
16/092,440
OSTI ID:
1892623
Resource Relation:
Patent File Date: 12/22/2017
Country of Publication:
United States
Language:
English

References (10)

Reinforced electrode assembly patent-application August 2013
Method for manufacturing polymer electrolyte fuel cell patent-application October 2006
Manufacturability of ePTFE laminated membranes patent-application September 2014
Water-based catalyst inks and their use for manufacture of catalyst-coated substrates patent January 2005
Fabrication of catalyst coated membrane with screen printing method in a proton exchange membrane fuel cell journal April 2015
Production of Catalyst Coated Membranes patent-application March 2005
New Preparation Method for Polymer-Electrolyte Fuel Cells journal January 1995
Ink for Producing Catalyst Layers patent-application July 2011
Catalyst layer composition for fuel cell, electrode for fuel cell, method of preparing electrode for fuel cell, membrane-electrode assembly for fuel cell, and fuel cell system using the membrane-electrode assembly patent-application February 2013
Poly(arlyene ether sulfone) based semi-interpenetrating polymer network membranes containing cross-linked poly(vinyl phosphonic acid) chains for fuel cell applications at high temperature and low humidity conditions journal October 2015

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