Electrolyte membrane with improved ion conductivity and method for manufacturing the same
AssigneesHyundai Motor Company, Kia Corporation
InventorsByoungsu Kim, Bo Ki Hong, Ji Hoon Yang
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Abstract
Disclosed are an electrolyte membrane with improved ion conductivity and enhanced water transport and a method for manufacturing the same. The electrolyte membrane includes an ion transport layer including an ionomer having proton conductivity and a catalyst dispersed in the ion transport layer, and the catalyst includes a support including a shell configured to have a designated shape and size and to be hollow and at least one hole configured to allow an inner space to communicate with an outside therethrough, and a metal supported on the support.
Claims19
A membrane-electrode assembly, comprising:
- a cathode;
- an anode;
- and
- an electrolyte membrane located between cathode and the anode, wherein the electrolyte membrane comprises:
- an ion transport layer comprising an ionomer having proton conductivity;
- and
- a catalyst dispersed in the ion transport layer, wherein the catalyst comprises:
- a support comprising a shell configured to have a predetermined shape and size;
- an inner space;
- and one or more holes configured to allow the inner space to communicate with an outside therethrough;
- and
- a metal supported on the support;
- wherein the inner space is filled with the ionomer.
A method for manufacturing a membrane-electrode assembly, comprising:
- producing an electrolyte membrane;
- and
- bonding a cathode and an anode to the electrolyte membrane;
- wherein producing the electrolyte membrane comprises:
- preparing a solution comprising a catalyst and an ionomer;
- and
- forming an ion transport layer by applying the solution,
- wherein the catalyst comprises:
- a support comprising a shell configured to have a predetermined shape and size;
- an inner space;
- and one or more holes configured to allow the inner space to communicate with an outside therethrough;
- and
- a metal supported on the support;
- wherein the inner space is filled with the ionomer.
Dependencies are inferred from the claim text.