Membrane-electrode assembly and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-12266833-B2
Application number	US-202117459634-A
Country	US
Kind code	B2
Filing date	Aug 27, 2021
Priority date	Oct 12, 2020
Publication date	Apr 1, 2025
Grant date	Apr 1, 2025

Abstract

A membrane-electrode assembly and a method for manufacturing the same are provided. The membrane-electrode assembly includes a pattern layer formed between a separator and a subgasket through a UV curing process.

First claim

What is claimed is:

1. A membrane-electrode assembly comprising:
an electrolyte membrane comprising catalyst layers formed on both surfaces of the electrolyte membrane;
subgaskets provided on surfaces of the electrolyte membrane;
separators provided on the subgaskets; and
pattern layers interposed between the subgaskets and the separators.

2. The membrane-electrode assembly of claim 1 , wherein the pattern layers further comprising at least one pattern member, and wherein the pattern member have a shape of one of a polygon or a circle.

3. The membrane-electrode assembly of claim 2 , wherein the pattern layers further comprise:
a curable material including urethane acrylate.

4. The membrane-electrode assembly of claim 3 , wherein the pattern layers further comprise:
a base material including at least one of low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), thermoplastic polyurethane (TPU), cast polypropylene (CPP), or polyvinylidene fluoride (PVDF).

5. The membrane-electrode assembly of claim 4 , wherein the pattern layers comprise:
1,800 parts by weight to 3,300 parts by weight of the base material based on 100 parts by weight of the curable material.

6. The membrane-electrode assembly of claim 1 , wherein the pattern layers comprise:
pattern openings having a shape including one of a polygon or a circle.

7. The membrane-electrode assembly of claim 6 , wherein the pattern layers comprise:
a degradable material including a phenol formaldehyde resin.

8. The membrane-electrode assembly of claim 1 , wherein the pattern layers have a thickness of 500 nm to 50 μm.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Park Young June
• Lee Han Hyung
• Jung Soon Ho
• Yu Seung Ah
• Kim Min Jin
• Kim Sun Il

Classifications

• H01M4/88

  Processes of manufacture · CPC title

• H01M8/1004 Primary

  characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence) · CPC title

• H01M8/0286

  Processes for forming seals · CPC title

• H01M8/0284

  Organic resins; Organic polymers · CPC title

• H01M8/0273

  with sealing or supporting means in the form of a frame · CPC title