Patent ID: 8426078
Filing Date: 2013-04-23
Classification: H01M,Y02E,Y02P

Abstract:
1. A method of making fuel cell membrane electrode assemblies (MEAs) via a roll-to-roll process, comprising: transporting a web comprising a subgasketed catalyst coated membrane (CCM) layer and applying a crosslinkable resin to at least a subgasketed portion of the subgasketed CCM layer, the crosslinkable resin comprising a photocurable cationic crosslinkable resin wherein the crosslinkable resin has a latent curing ability; subjecting an exposed surface of the crosslinkable resin to a photo curing process to initiate curing of the crosslinkable resin; terminating the photo curing process while the crosslinkable resin continues to cure in a partially cured state; transporting a web comprising a gas diffusion layer (GDL) into adhering contact with a partially cured exposed surface of the crosslinkable resin of the subgasketed CCM layer so as to form an MEA layer; and producing, subsequent to substantial completion of crosslinkable resin curing, discrete MEAs from the MEA layer.