Assembly for a fuel cell and method for producing same

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This patent describes a new assembly and manufacturing method for a fuel cell, specifically solid oxide fuel cells (SOFCs). The core innovation lies in introducing an adaptation layer between the electrode (anode or cathode) and the electrolyte. This adaptation layer, made from a non electronically-conductive material and engineered to have smaller pores and smoother surfaces than the electrode, enables the deposition of extremely thin, gas-tight electrolyte layers. This results in improved fuel cell performance and simpler manufacturing, as it reduces internal resistance and potential defects in the cell structure.

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• High-performance solid oxide fuel cells for stationary power generation (e.g., industrial or residential fuel cell systems).
• Portable or backup power solutions using advanced fuel cells with improved efficiency and manufacturability.
• Automotive applications such as fuel cell-powered vehicles, where weight and efficiency are critical.
• Integration into distributed energy grids for combined heat and power (CHP) systems.
• Development of compact, durable fuel cells for aerospace or military applications.

BenefitsContent extracted from patent full text and abstract with AI.

• Allows thin electrolyte layers, reducing internal resistance and boosting fuel cell performance.
• Enables reliable, gas-tight sealing of electrolyte even on rougher and porous electrodes.
• Simplifies manufacturing by reducing the need for multiple intermediate layers or complex processing steps.
• Permits the use of cheaper or more thermally robust metal substrates without compromising fuel cell quality.
• Potentially improves the durability and operational lifetime of fuel cells due to reduced defect rates and better material compatibility.
• Enhances flexibility in cell architecture, supporting various materials and assembly configurations.

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Patent Abstract

The arrangement has an adaptation layer (AD) provided for adaptation of electrolyte (E) to electrodes and arranged between the electrodes and the electrolytes, where middle porous dimension of the adaptation layer is smaller than that of the electrodes. The adaptation layer exhibits a central surface smoothness of maximum 1.0 micrometer. The electrodes are designed as an anode and cathode. The adaptation layer exhibits thickness that ranges from 3 to 7 micrometer. The adaptation layer and the electrolytes are made of electronic non-conducting material. An independent claim is also included for a method for manufacturing the fuel cell arrangement.