Method for Producing a Cathode

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The patent describes a method for producing a cathode for high-temperature fuel cells. The cathode consists of a layer of ultra-fine, porous particles (with diameters up to 30 nm) that are applied to a sintered electrolyte. The method increases the active surface area of the cathode to between 15 and 900 m² per gram, which is much higher than prior technologies. This is achieved by carefully selecting the starting materials, creating porosity using removable filler materials, and specific mixing, thermal, and coating techniques.

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• High-temperature fuel cells for power generation in stationary applications (e.g., power plants or backup energy systems)
• Use in portable or mobile high-temperature fuel cell systems (e.g., vehicles) due to improved performance at lower material costs and enhanced durability
• Integration in combined heat and power units for residential, commercial, or industrial use
• Application in distributed energy systems and microgrids requiring high-efficiency, low-emission energy conversion

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly higher catalytic surface area, leading to much greater reaction efficiency and improved fuel cell performance
• Potential to reduce the operating costs of high-temperature fuel cells by using less expensive materials and increasing component lifespan
• Flexible material design, allowing a variety of metal oxides and dopants to optimize performance for different applications
• Enhanced oxygen ion transport and catalytic activity due to the nanometer-scale porosity and precise particle size control
• Improved manufacturability of cathodes with consistent, highly porous structures using scalable chemical processing
• Lower environmental impact due to efficient fuel utilization and compatibility with various energy sources (e.g., hydrogen, biofuels)

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Patent Abstract

A cathode for high-temperature fuel cell, comprising a layer of porous particles applied on a sintered electrolyte, the layer having a surface area of 15 to 900 m2 per gram and the average size of the porous particles do not exceed 30 nm and a method for preparing the same.