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US 7,842,422 B2Granted
Membrane-electrode assembly for fuel cell and fuel cell comprising the same
AssigneeSamsung SDI Co., Ltd.
InventorHyung-Gon Noh
Life of this patent
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Abstract
A polymer membrane-electrode assembly for a fuel cell includes an anode and a cathode, each of the anode and the cathode including a catalyst layer and an electrode substrate; and a polymer membrane placed between the anode and cathode. In the polymer membrane-electrode assembly, the polymer membrane is a polyphenylene vinylene-based polymer having a proton conductive functional group in a side chain of the polyphenylene vinylene-based polymer.
Claims25
A membrane-electrode assembly for a fuel cell, comprising:
- an anode and a cathode, each of the anode and the cathode including a catalyst layer and an electrode substrate;
- and
- a polymer membrane between the anode and cathode,
- wherein the polymer membrane comprises a polyphenylene vinylene-based polymer having the following chemical formula:
- wherein only one of X, Y, Z, and T is a proton conductive functional group and the remaining of X, Y, Z, and T are hydrogen.
2 more elements
A fuel cell, comprising:
- a membrane-electrode assembly including an anode and a cathode, each of the anode and the cathode having a catalyst layer and an electrode substrate, and a polymer membrane placed between the anode and cathode;
- and
- a separator being positioned on either side of the membrane-electrode assembly,
- wherein the polymer membrane comprises a polyphenylene vinylene-based polymer having the following chemical formula:
- wherein only one of X, Y, Z, and T is a proton conductive functional group and the remaining of X, Y, Z, and T are hydrogen.
2 more elements
A polymer membrane for a membrane-electrode assembly of a fuel cell, comprising:
- a polyphenylene vinylene-based polymer blended with an ion conductive polymer to have a proton conductive functional group in a side chain of the polyphenylene vinylene-based polymer, wherein the polyphenylene vinylene-based polymer having the proton conductive functional group allows the polymer membrane to permeate protons at a high temperature and a low humidity, and has the following chemical formula:
- wherein only one of X, Y, Z, and T is a proton conductive functional group and the remaining of X, Y, Z, and T are hydrogen.
Dependencies are inferred from the claim text.