WO2024042498 - BIPOLAR PLATES WITH OPTIMIZED CHANNEL GEOMETRY
National phase entry is expected:
Publication Number
WO/2024/042498
Publication Date
29.02.2024
International Application No.
PCT/IB2023/058447
International Filing Date
25.08.2023
Title **
[English]
BIPOLAR PLATES WITH OPTIMIZED CHANNEL GEOMETRY
[French]
PLAQUES BIPOLAIRES À GÉOMÉTRIE DE CANAL OPTIMISÉE
Applicants **
HYDROGENICS CORPORATION
Inventors
RANIERI, Salvatore
Priority Data
63/401,446
26.08.2022
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
CIPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2671 | |
| EPO | Filing, Examination, Granting | 15724 | |
| Japan | Filing, Examination, Granting | 2307 | |
| South Korea | Filing, Examination, Granting | 2469 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
27,911
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A bipolar plate assembly includes a bipolar sheet including channels formed on a surface of the sheet, each channel including a distribution region and an active region fluidically connected to the distribution region. The active region where fluid flowing through the channel is operable to electrochemically react with a gas diffusion layer of a fuel cell. Each channel is defined as a groove formed between a first land and a second land, the groove having a groove width defined from the first land to the second land, the first land defining a first top land surface having a first top land surface width. The quotient of dividing the first top land surface width by the sum of the first top land surface width and the groove width defines a land fraction. The land fraction in the entirety of the distribution region of each channel is equal to or below 0.3.[French]
Un ensemble plaque bipolaire comprend une feuille bipolaire comprenant des canaux formés sur une surface de la feuille, chaque canal comprenant une région de distribution et une région active en communication fluidique avec la région de distribution. La région active où le fluide s'écoulant à travers le canal est utilisable pour réagir électrochimiquement avec une couche de diffusion gazeuse d'une pile à combustible. Chaque canal est défini comme une rainure formée entre une première pastille et une seconde pastille, la rainure ayant une largeur de rainure définie de la première pastille à la seconde pastille, la première pastille définissant une première surface de pastille supérieure ayant une première largeur de surface de pastille supérieure. Le quotient de la division de la première largeur de surface de pastille supérieure par la somme de la première largeur de surface de pastille supérieure et de la largeur de rainure définit une fraction d'appui. La fraction terrestre dans la totalité de la région de distribution de chaque canal est égale ou inférieure à 0,3.