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US 2021/0202970 A1Published application
Method for manufacturing membrane-electrode assembly
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsWoo Jin Lee, Ki Sub Lee
Life of this patent
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Abstract
A method for manufacturing a membrane-electrode assembly (MEA) is provided. In particular, first and second sub-gasket sheets are continuously supplied and an electrode membrane sheet having gaps formed therein so that the amount of an electrolyte membrane used is reduced is discontinuously supplied. Thus, the minimum length of the electrolyte membrane protrudes between sub-gaskets and the electrolyte membrane together with electrode catalyst layers is bonded to the sub-gaskets
Claims12
A method for manufacturing a membrane-electrode assembly (MEA), comprising:
- unwinding and supplying a first sub-gasket sheet and a second sub-gasket sheet wound into rolls;
- continuously forming electrode windows in the supplied first sub-gasket sheet and second sub-gasket sheet using a first sub-gasket cutter and a second sub-gasket cutter to space the electrode windows apart from one another by a predetermined interval;
- continuously supplying the first sub-gasket sheet and the second sub-gasket sheet provided with the electrode windows continuously formed therein to a first sub-gasket sheet bonding roller and a second sub-gasket sheet bonding roller;
- unwinding and supplying an electrode membrane sheet wound into a roll;
- continuously forming gaps in the supplied electrode membrane sheet using an electrode membrane cutter to space the gaps apart from one another by a predetermined interval;
- supplying the electrode membrane sheet provided with the gaps formed therein to an electrode membrane sheet bonding roller;
- primarily bonding the supplied first sub-gasket sheet and the supplied electrode membrane sheet by allowing the first sub-gasket sheet and the electrode membrane sheet to pass between the first sub-gasket sheet bonding roller and the electrode membrane sheet bonding roller;
- and
- secondarily bonding a second assembly, supplied from the first sub-gasket sheet bonding roller after the primarily bonding, and the second sub-gasket sheet supplied from the second sub-gasket sheet bonding roller by allowing the second assembly and the second sub-gasket sheet to pass between the first sub-gasket sheet bonding roller and the second sub-gasket sheet bonding roller.
6 more elements
Dependencies are inferred from the claim text.