Stack for simulating cell voltage reversal behavior in fuel cell
US-9819034-B2 · Nov 14, 2017 · US
Stack for simulating cell voltage reversal behavior in fuel cell
US2017141418A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017141418-A1 |
| Application number | US-201615352519-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 15, 2016 |
| Priority date | Aug 29, 2012 |
| Publication date | May 18, 2017 |
| Grant date | — |
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Abstract
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Disclosed is a stack for simulating a cell voltage reversal behavior in a fuel cell. The stack is configured to have a structure in which a separator of a portion of a plurality of cells in the stack have an inlet of a hydrogen flow field partially blocked to induce hydrogen starvation only in the portion of the plurality of cells.
First claim
Opening claim text (preview).
1 . A structure for use in a fuel cell stack comprising a plurality of cells that include a separator to simulate a cell voltage reversal behavior in the portion of the plurality of cells, wherein a separator, that is provided in the structure, has an inlet of a hydrogen flow field that is partially blocked to induce hydrogen starvation only in the portion of the plurality of cells, wherein a blocking member is attached to a front end of the inlet of the hydrogen flow field formed on one surface of the separator to induce the hydrogen starvation in the separator to which the blocking member is attached, and wherein the hydrogen flow field is disposed between a hydrogen supply inlet and a hydrogen exhaust outlet of a manifold of the fuel cell stack. 2 . The structure of claim 1 , wherein the blocking member is disposed at the front end of the inlet of the hydrogen flow field on the one surface of the separator to block the hydrogen supply through a hydrogen supply inlet. 3 . The structure of claim 2 , wherein the blocking member blocks a total area of the inlet of the hydrogen flow field of the separator by about 70% to about 95%. 4 . The structure of claim 2 , wherein the blocking member is formed of a polymer or a metallic material. 5 . The structure of claim 1 , wherein the stack operates at a current density of about 200 mA/cm2 to about 1,000 mA/cm2. 6 . The structure of claim 1 , wherein a number of the cells with the inlet of the hydrogen flow field blocked ranges from one to a half of the total number of the cells in the stack. 7 . The structure of claim 1 , wherein the blocking member is disposed between a hydrogen supply inlet and the hydrogen flow field.
Assignees
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Classifications
Safety devices for primary or secondary batteries · CPC title
- H01M8/04305Primary
Modeling, demonstration models of fuel cells, e.g. for training purposes · CPC title
Fuel cells with polymeric electrolytes · CPC title
of gaseous reactants · CPC title
Energy storage using batteries · CPC title
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Frequently asked questions
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- What does patent US2017141418A1 cover?
- Disclosed is a stack for simulating a cell voltage reversal behavior in a fuel cell. The stack is configured to have a structure in which a separator of a portion of a plurality of cells in the stack have an inlet of a hydrogen flow field partially blocked to induce hydrogen starvation only in the portion of the plurality of cells.
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04305. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 18 2017 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).