Method for manufacturing membrane electrode assembly
AssigneeDenso Corporation
InventorsYuuya Yoshimitsu, Nobuyoshi Sakakibara
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Abstract
In a method for manufacturing a membrane electrode assembly, a catalyst layer is bonded to a catalyst layer support made of a sublimation material by placing the catalyst layer support into contact with the catalyst layer. In the method, an electrolyte membrane is bonded to the catalyst layer by placing the electrolyte membrane into contact with the catalyst layer bonded to the catalyst layer support. In the method, the catalyst layer support is sublimated in a state where the electrolyte membrane is bonded to the catalyst layer.
Claims5
A method for manufacturing a membrane electrode assembly including a pair of electrodes and an electrolyte membrane interposed between the pair of electrodes, each electrode of the pair of electrodes including a catalyst layer bonded to the electrolyte membrane, and a gas diffusion layer bonded to the catalyst layer, the method comprising:
- bonding the catalyst layer and a catalyst layer support made of a sublimation material by placing the catalyst layer support into contact with the catalyst layer;
- bonding the electrolyte membrane and the catalyst layer by placing the electrolyte membrane into contact with the catalyst layer bonded to the catalyst layer support;
- and
- sublimating the catalyst layer support in a state where the electrolyte membrane is bonded to the catalyst layer, wherein
- the sublimation material is naphthalene, paradichlorobenzene, or camphor.
A method for manufacturing a membrane electrode assembly including a pair of electrodes and an electrolyte membrane interposed between the pair of electrodes, each electrode of the pair of electrodes including a catalyst layer bonded to the electrolyte membrane, and a gas diffusion layer bonded to the catalyst layer, the method comprising:
- bonding the catalyst layer and a catalyst layer support made of a sublimation material by placing the catalyst layer support into contact with the catalyst layer;
- bonding the electrolyte membrane and the catalyst layer by placing the electrolyte membrane into contact with the catalyst layer bonded to the catalyst layer support;
- sublimating the catalyst layer support in a state where the electrolyte membrane is bonded to the catalyst layer;
- and
- adding an ionomer to a surface of the catalyst layer facing away from the catalyst layer support, after the bonding of the catalyst layer and the catalyst layer support, and before the bonding of the electrolyte membrane and the catalyst layer.
Dependencies are inferred from the claim text.