Supported Electrolyte, Method for the Production Thereof and Use Thereof

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This patent describes a supported electrolyte structure composed of a porous, ion-conducting ceramic substrate coated with an electrolyte layer. The substrate (or backbone) is highly porous (30-80%) and made from materials such as doped perovskite ceramics or fluorite-type oxides, which are capable of conducting ions (such as protons or oxide ions). The invention includes detailed methods for fabricating this structure, particularly using water-based processing, organic pore formers (like sawdust or polymers), and high-temperature sintering without relying on nickel components typical in existing technologies. This enables stable, high-performance ceramic electrolyte layers for use in challenging conditions, such as those found in fuel cells or electrolysis cells.

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• Solid oxide fuel cells (SOFCs) for clean power generation in stationary, mobile, or portable applications.
• Solid oxide electrolysis cells (SOECs) for hydrogen or synthetic fuel production via water or CO2 electrolysis.
• Sensors or devices requiring robust ion-conducting ceramic membranes.
• Electrochemical devices operating in carbon-containing atmospheres where nickel cermets are unstable.
• Advanced battery technologies using solid-state electrolytes.

BenefitsContent extracted from patent full text and abstract with AI.

• Eliminates the need for nickel components, reducing risks of deactivation and degradation associated with carbon deposition and oxidation.
• Enables processing of electrode and electrolyte compositions that cannot withstand the high temperatures required by conventional methods, broadening material choices.
• Offers high porosity and tailored microstructure for improved electrochemical performance and mechanical stability.
• Improves chemical and mechanical stability in harsh environments, such as high current densities and carbon-rich atmospheres.
• Facilitates the creation of gas-tight, dense electrolyte layers critical for energy conversion efficiency and device durability.

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Inventors & Applicants

Patent Abstract

The application relates to a support-based electrolyte, comprising a support with a first surface and an electrolyte applied to the first surface, wherein the support comprises an ion-conducting solid with a porosity of 30% to 80%. Furthermore, the preparation of the support-based electrolyte and its use are described.