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US 7,604,886 B2Granted
Polymer membrane for fuel cell, method of preparing the same, and stack for fuel cell and fuel cell system comprising the same
AssigneeSamsung SDI Co., Ltd.
InventorsHee-Tak Kim, Hae-Kwon Yoon, Jun-Won Suh
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Abstract
The polymer electrolyte membrane of the present invention includes a porous supporter having pores, and a metal ion adsorptive material and a proton conductive polymer which are present in the pores of the porous supporter.
Claims32
A polymer electrolyte membrane for a fuel cell, comprising:
- a porous supporter having pores;
- and
- a metal ion adsorptive material and a proton conductive polymer in the porous supporter, the metal ion adsorptive material comprising at least one selected from the group of a polymer having a —COOH group, a polymer having a —OH group, alumina, and a polymer having a chelating functional group.
A polymer electrolyte membrane, comprising:
- a metal ion adsorptive material comprising at least one selected from the group of a polymer having a —COOH group, a polymer having a —OH group, alumina, and a polymer having a chelating functional group;
- and
- a proton conductive polymer.
A method for preparing a polymer electrolyte membrane for a fuel cell, comprising:
- preparing a porous supporter having pores;
- forming a metal ion adsorptive material on an inner surface of the pores to form a metal ion adsorptive material layer;
- and
- filling a proton conductive polymer in the pores having the inner surface on which the metal ion adsorptive material layer is formed.
1 more element
A membrane-electrode assembly comprising:
- an anode and a cathode facing each other;
- and
- a polymer electrolyte membrane positioned between the anode and cathode, the polymer electrolyte membrane comprising:
- a porous supporter having pores;
- a metal ion adsorptive material formed in the pores of the porous supporter, the metal ion adsorptive material comprising at least one selected from the group of a polymer having a —COOH group, a polymer having a —OH group, alumina, and a polymer having a chelating functional group;
- and
- a proton conductive polymer in the pores of the porous supporter.
4 more elements
Dependencies are inferred from the claim text.