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US-2024178413-A1 · May 30, 2024 · US
Manufacturing method of fuel-cell single cell
US2021075033A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021075033-A1 |
| Application number | US-202016899478-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 11, 2020 |
| Priority date | Sep 10, 2019 |
| Publication date | Mar 11, 2021 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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Provided is a manufacturing method of a fuel-cell single cell including a membrane-electrode assembly, an anode gas diffusion layer, a cathode gas diffusion layer, and a frame-shaped resin frame to which a peripheral edge portion of the membrane-electrode assembly is fixed. The method includes an adhesive application step of applying an adhesive by screen printing to a predetermined area of the resin frame while fixing the resin frame by suction, and a stacking step and a UV irradiation step of bonding together the resin frame to which the adhesive has been applied and the membrane-electrode assembly by the adhesive.
First claim
Opening claim text (preview).
What is claimed is: 1 . A manufacturing method of a fuel-cell single cell including a membrane-electrode assembly, gas diffusion layers disposed one on each surface of the membrane-electrode assembly, and a frame-shaped resin frame to which a peripheral edge portion of the membrane-electrode assembly is fixed, the method comprising: a first step of applying an adhesive by screen printing to a predetermined area of the resin frame while fixing the resin frame by suction; and a second step of bonding together by the adhesive the resin frame to which the adhesive has been applied and the membrane-electrode assembly that has the gas diffusion layer provided at least on a surface opposite from a surface to which the resin frame is to be bonded. 2 . The manufacturing method of a fuel-cell single cell according to claim 1 , wherein: the resin frame has an opening bored through the resin frame in a thickness direction at a part surrounded by an area to which the adhesive is applied; and in the second step, the resin frame and the membrane-electrode assembly are bonded together while the resin frame and the membrane-electrode assembly are moved back and forth relatively to each other in planar directions orthogonal to the thickness direction such that the adhesive spreads into the opening. 3 . The manufacturing method of a fuel-cell single cell according to claim 1 , wherein: the resin frame has an opening bored through the resin frame in a thickness direction at a part surrounded by an area to which the adhesive is applied; and in the first step, the adhesive is applied by screen printing in a state where the resin frame is fixed by a fixing base having a suction surface to which the resin frame is fixed by suction and a protrusion that protrudes from the suction surface into the opening.
Assignees
Inventors
Classifications
Fuel cells with solid oxide electrolytes · CPC title
- H01M8/0286Primary
Processes for forming seals · CPC title
with sealing or supporting means in the form of a frame · CPC title
Fuel cells with polymeric electrolytes · CPC title
Organic resins; Organic polymers · CPC title
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Frequently asked questions
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- What does patent US2021075033A1 cover?
- Provided is a manufacturing method of a fuel-cell single cell including a membrane-electrode assembly, an anode gas diffusion layer, a cathode gas diffusion layer, and a frame-shaped resin frame to which a peripheral edge portion of the membrane-electrode assembly is fixed. The method includes an adhesive application step of applying an adhesive by screen printing to a predetermined area of the…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/0286. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 11 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).