Method for manufacturing membrane electrode assembly including transferring electrode layer to electrolyte membrane by gas pressure
OwnerJin-Hwa Lee, Jun-Young Kiminventors
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Abstract
A method for manufacturing a membrane electrode assembly for a fuel cell, in which uniform pressure is applied to the entire area of an electrode during a transferring process to ensure uniformity of products. The method includes an electrode forming step of forming an electrode layer by coating an electrode slurry on a support; a transferring step of aligning the electrode layer on both surfaces of an electrolyte membrane and applying heat and pressure to transfer the electrode layer; and removing the support, wherein in the transferring step, gas pressure is applied to a gas pressure platen of a stretchable material to transfer the electrode layer to the electrolyte membrane.
Claims10
A method for manufacturing a membrane electrode assembly for a fuel cell, the method comprising:
- an electrode forming step including coating an electrode slurry on a support to form an electrode layer;
- a transfer step including (i) aligning the electrode layer on a surface of an electrolyte membrane to form a stack, (ii) mounting the stack on a base plate, and (iii) applying heat and pressure to the stack so as to transfer the electrode layer to the electrolyte membrane;
- and
- a step of removing the support,
- wherein, in the transfer step, a gas pressure platen of a stretchable material comes into contact with the support, and then gas pressure is directly applied to the gas pressure platen of the stretchable material using a chamber having gas filled therein,
- wherein the gas pressure platen is a silicone pad or a silicon rubber pad,
- wherein the base plate is a metallic plate including a first heater and a first cooling line therein, and
- wherein the chamber includes a second heater for heating the gas and a second cooling line for cooling the gas.
Dependencies are inferred from the claim text.