Manufacturing method and manufacturing apparatus of gas diffusion layer for fuel cell
AssigneeToyota Jidosha Kabushiki Kaisha
InventorYukihiro SHIBATA
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Abstract
The manufacturing method of a gas diffusion layer for fuel cell includes coating a first coating fluid for forming a microporous layer on one surface of a porous base material used for formation of a substrate layer, and coating a second coating fluid for water repellent treatment having a lower viscosity than viscosity of the first coating fluid on the other surface of the base material facing downward in a direction of gravity.
Claims5
A manufacturing method of a gas diffusion layer for fuel cell having a substrate layer and a microporous layer, the manufacturing method comprising:
- coating a first coating fluid for forming the microporous layer on one surface of a porous base material used for formation of the substrate layer, and coating a second coating fluid for water repellent treatment having a lower viscosity than viscosity of the first coating fluid on the other surface of the base material facing downward in a direction of gravity.
A manufacturing apparatus of a gas diffusion layer for fuel cell having a substrate layer and a microporous layer, the manufacturing apparatus comprising:
- a conveyor configured to convey a base material used for formation of the substrate layer;
- a first coater configured to coat a first coating fluid for forming the microporous layer on one surface of the base material;
- and
- a second coater configured to coat a second coating fluid for water repellent treatment having a lower viscosity than viscosity of the first coating fluid on the other surface of the base material facing downward. in a direction of gravity.
Dependencies are inferred from the claim text.