Pressurized channel for a fuel cell

DE102024109302A1Pending Publication Date: 2025-08-07GM GLOBAL TECHNOLOGY OPERATIONS LLC
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Patent Information

Application Number
DE102024109302
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-07
Filing Date
2024-04-03
Publication Date
2025-08-07

AI Technical Summary

Technical Problem

Fuel cell channels made of traditional materials lose flexibility while achieving flame retardancy, necessitating a solution that maintains both properties under harsh hydrogen and humidity conditions.

Method used

A flexible mesh channel body with a facecoat, composed of materials like polyamide and reinforced with glass fiber or graphene, and coated with cross-linked polymers for enhanced structural integrity and flame retardancy.

Benefits of technology

The solution provides adjustable flexibility and improved flame retardancy, maintaining structural integrity under hydrogen exposure, ensuring consistent performance and safety in fuel cells.

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Abstract

A channel for a fuel cell includes a channel body defining an opening configured to allow fluid to flow therethrough. The channel body includes a flexible mesh configured to provide adjustable flexibility to the channel body. Additionally, a surface coating is disposed on an outer surface of the channel body. Furthermore, the surface coating provides one or more of flame retardancy and structural integrity to the channel body.
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Citation Information

Patent Citations

  • Pipe for conveying a fluid for a vehicle

    US11833787B2

  • High temperature-resistant hose

    US20100018600A1

  • Hose

    US7478654B2

  • Low extraction HNBR material with adhesion to polyamides

    WO2023238066A1

  • US000011833787B2