Method for manufacturing separator for fuel cell

Patent metadata

Field	Value
Publication number	US-10608223-B2
Application number	US-201816150602-A
Country	US
Kind code	B2
Filing date	Oct 3, 2018
Priority date	Nov 10, 2017
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A method for manufacturing a separator for fuel cell including a seal part of thermosetting resin can have improved productivity. The method includes a placing step to place uncured thermosetting resin on a substrate, a pre-curing step to pre-cure the uncured thermosetting resin on the substrate, and a curing step to cure the pre-cured thermosetting resin on the collected plurality of substrates to collectively form the seal parts on the plurality of substrates.

First claim

What is claimed is:

1. A method for manufacturing a separator for fuel cell that includes a seal part of thermosetting resin, comprising:
a placing step of placing uncured thermosetting resin on a substrate;
a pre-curing step of pre-curing the uncured thermosetting resin placed on the substrate; and
a curing step of collecting a plurality of the substrates and curing the pre-cured thermosetting resin to collectively form the seal parts on the plurality of substrates.

2. The method for manufacturing a separator for fuel cell according to claim 1 , wherein the placing step includes:
an applying step of applying the uncured thermosetting resin on a surface of the substrate; and
a pressurizing step of placing the substrate in a forming die and pressurizing the uncured thermosetting resin applied on the surface of the substrate at the applying step with the forming die to allow the resin to flow into a through-hole of the substrate so as to place the uncured thermosetting resin on an inner wall of the through-hole.

3. The method for manufacturing a separator for fuel cell according to claim 1 , wherein
the placing step places the thermosetting resin that is uncured by injection molding on the substrate placed in a forming die, and
the pre-curing step heats the forming die to pre-cure the uncured thermosetting resin placed on the substrate at the placing step.

4. The method for manufacturing a separator for fuel cell according to claim 1 , wherein the placing step and the pre-curing step are repeated a plurality of times before the curing step.

Assignees

• Toyota Motor Co Ltd

Inventors

• Nakamura Hideo
• Yamanishi Kazuomi
• Okabe Hiroki

Classifications

• H01M8/0234

  Carbonaceous material · CPC title

• H01M8/0245 Primary

  in the form of layered or coated products · CPC title

• H01M8/0239

  Organic resins; Organic polymers · CPC title

• H01M8/0206 Primary

  Metals or alloys · CPC title

• H01M2/145 Primary

  Electricity · mapped topic