Patent · US Active

Electrochemically active unit for an electrochemical device

US11557771B2 · kind B2 · utility

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0References

10Claims

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Assignee

EKPO Fuel Cell Technologies GmbH · DE

Inventors

Peter Stahl · Metzingen, DE
Juergen Kraft · Metzingen, DE
Karsten Dahl · Owen, DE
Oliver Fink · Veldhoven, NL
Alexander Groeh · Rötteln, DE

Key dates

Filing date	Jan 23, 2020
Grant date	Jan 17, 2023
Priority date	—
Expiry date	Jun 30, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In order to provide an electrochemically active unit for an electrochemical device including a membrane electrode assembly, at least one gas diffusion layer and a seal that is linked to at least one of the at least one gas diffusion layers, in the manufacture whereof as even as possible a construction of the penetration region in which the gas diffusion layer of the electrochemically active unit is penetrated by the sealing material of the seal over the periphery of the gas diffusion layer is achievable, the seal includes a linking region, a distribution region and a connection region that connects the linking region and the distribution region to one another, wherein the connection region has a minimum height that is less than a quarter of the maximum height of the distribution region and less than a quarter of the maximum height of the linking region.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.