Fuel cell electrode catalyst protective layer forming method
US-12021245-B2 · Jun 25, 2024 · US
Method of manufacturing fuel cell
US2016149226A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016149226-A1 |
| Application number | US-201514947663-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 20, 2015 |
| Priority date | Nov 26, 2014 |
| Publication date | May 26, 2016 |
| Grant date | — |
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- Title
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Abstract
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A method of manufacturing a fuel cell which enables organic matter of both an anode thereof and a cathode thereof to be removed efficiently is provided. A method of manufacturing a fuel cell, comprising a preparation step of preparing a fuel cell comprising a stack of a plurality of unit cells, each including polymer electrolyte and a catalyst layer, and a removal step of removing organic matter from the fuel cell, is provided. This removal step comprises: a first step of maintaining a voltage of the fuel cell at 0 V so as to desorb organic matter from the catalyst layer; a second step of raising a temperature inside the fuel cell so as to evaporate the desorbed organic matter; and a third step of exhausting the evaporated organic matter from the fuel cell.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method of manufacturing a fuel cell, comprising: a preparation step of preparing a fuel cell comprising a stack of a plurality of unit cells each including polymer electrolyte and a catalyst layer; and a removal step of removing organic matter from the fuel cell, wherein the removal step comprises: a first step of maintaining a voltage of the fuel cell at 0 V so as to desorb organic matter from the catalyst layer; a second step of raising a temperature inside the fuel cell so as to evaporate the desorbed organic matter; and a third step of exhausting the evaporated organic matter from the fuel cell. 2 . The method of manufacturing a fuel cell according to claim 1 , wherein the third step is a step of purging an inside of the fuel cell. 3 . The method of manufacturing a fuel cell according to claim 1 , comprising, after the third step, a fourth step of creating produced water via power generation of the fuel cell and washing, with the produced water, the organic matter from the fuel cell. 4 . The method of manufacturing a fuel cell according to any one of claim 1 , wherein, when a maximum output of the fuel cell is below a standard value, the removal step is repeated. 5 . The method of manufacturing a fuel cell according to claim 4 , wherein, when a maximum output of the fuel cell does not show an increase from a previous value after the removal step is performed twice or more, it is determined that the fuel cell has a failure.
Assignees
Inventors
Classifications
Fuel cells in motive systems, e.g. vehicle, ship, plane · CPC title
- H01M4/88Primary
Processes of manufacture · CPC title
Manufacturing or production processes characterised by the final manufactured product · CPC title
- H01M8/04223Primary
during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells · CPC title
Fuel cells · CPC title
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- What does patent US2016149226A1 cover?
- A method of manufacturing a fuel cell which enables organic matter of both an anode thereof and a cathode thereof to be removed efficiently is provided. A method of manufacturing a fuel cell, comprising a preparation step of preparing a fuel cell comprising a stack of a plurality of unit cells, each including polymer electrolyte and a catalyst layer, and a removal step of removing organic matte…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/88. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 26 2016 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).