Multilayer Coating System, in Particular for Application to a Fuel Cell, and Fuel Cell with Such a Coating System

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The invention describes a multi-layered coating system specifically designed to be applied to fuel cells. This system includes a first catalyst layer that facilitates the release of hydrogen from liquid organic hydrogen carriers (such as secondary alcohols), and a barrier layer that prevents the carrier material itself from reaching the fuel cell, while allowing only the released hydrogen gas to pass through. This enables efficient, selective on-site hydrogen supply for the fuel cell using easily stored and transported hydrogen carrier materials.

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• Retrofitting or upgrading existing fuel cells (such as PEM fuel cells) to enable operation with liquid organic hydrogen carriers instead of pure hydrogen gas.
• Incorporation into new fuel cell systems for mobile applications (e.g., vehicles), where safe and convenient hydrogen storage and supply is needed.
• Use in stationary power generation, providing flexible hydrogen delivery from chemical storage.
• Application in modular hydrogen supply devices for small electronics or backup systems, where the cartridge or coating system can be replaced or refilled.

BenefitsContent extracted from patent full text and abstract with AI.

• Enables safer, more practical storage and transport of hydrogen as liquid organic carriers rather than high-pressure gas or cryogenic liquid.
• Minimizes contamination and degradation of the fuel cell, since the carrier material and its byproducts are blocked from reaching critical components.
• Improves the efficiency and flexibility of hydrogen supply for fuel cells, supporting a wider range of hydrogen storage and delivery options.
• Supports easier retrofitting of existing fuel cells, extending their utility and performance.
• Allows for scalable, robust, and potentially cost-effective manufacturing of the coating system using advanced (e.g., additive) production techniques.

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Inventors & Applicants

Patent Abstract

The invention relates to a multi-layered coating system (2) which is in particular used for attachment to a fuel cell (1), said coating system comprising a first catalyst layer having a first catalyst material for dehydrating a hydrogen carrier material and a barrier layer which is impermeable to the hydrogen carrier material.