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Title: High durability fuel cell components with cerium salt additives

Abstract

A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations. In another aspect, a fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein at least a portion of the anionic functional groups are in acid form and at least a portion of the anionic functional groups are neutralized by cerium cations. In another aspect, a polymer electrolyte membrane is provided which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations, and wherein the amount of cerium cations present is between 0.001 and 0.5 charge equivalents based on the molar amount of acid functional groups present in the polymer electrolyte, more typically between 0.005 and 0.2, more typically between 0.01 and 0.1, and more typically between 0.02 and 0.05.

Inventors:
; ;
Issue Date:
Research Org.:
3M Innovative Properties Company
Sponsoring Org.:
USDOE
OSTI Identifier:
1531892
Patent Number(s):
8628871
Application Number:
11/262,268
Assignee:
3M Innovative Properties Company (St. Paul, MN)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
DOE Contract Number:  
FC36-02AL67621
Resource Type:
Patent
Resource Relation:
Patent File Date: 2005-10-28
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 30 DIRECT ENERGY CONVERSION

Citation Formats

Frey, Matthew H., Pierpont, Daniel M., and Hamrock, Steven J. High durability fuel cell components with cerium salt additives. United States: N. p., 2014. Web.
Frey, Matthew H., Pierpont, Daniel M., & Hamrock, Steven J. High durability fuel cell components with cerium salt additives. United States.
Frey, Matthew H., Pierpont, Daniel M., and Hamrock, Steven J. Tue . "High durability fuel cell components with cerium salt additives". United States. https://www.osti.gov/servlets/purl/1531892.
@article{osti_1531892,
title = {High durability fuel cell components with cerium salt additives},
author = {Frey, Matthew H. and Pierpont, Daniel M. and Hamrock, Steven J.},
abstractNote = {A fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations. In another aspect, a fuel cell membrane electrode assembly is provided comprising a polymer electrolyte membrane which comprises a polymer that comprises bound anionic functional groups, wherein at least a portion of the anionic functional groups are in acid form and at least a portion of the anionic functional groups are neutralized by cerium cations. In another aspect, a polymer electrolyte membrane is provided which comprises a polymer that comprises bound anionic functional groups, wherein the polymer electrolyte membrane additionally comprises cerium cations, and wherein the amount of cerium cations present is between 0.001 and 0.5 charge equivalents based on the molar amount of acid functional groups present in the polymer electrolyte, more typically between 0.005 and 0.2, more typically between 0.01 and 0.1, and more typically between 0.02 and 0.05.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {1}
}

Patent:

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