Interconnector for high-temperature fuel cells

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes an improved interconnector for high-temperature fuel cells, consisting of two different material components. One component (A), made from a chromium oxide-forming high-temperature alloy, provides electrical connection between fuel cell units, while the other component (B), made from a corrosion-resistant, electrically insulating material that does not emit chromium, provides mechanical stability between cell units. This design reduces corrosion and prevents degradation problems associated with chromium vapor contamination, improving the performance and longevity of high-temperature fuel cell stacks.

Use CasesContent extracted from patent full text and abstract with AI.

• Solid oxide fuel cells (SOFCs) for stationary power generation
• High-temperature fuel cell stacks used in industrial energy production
• Distributed energy systems for commercial or residential buildings
• Backup power solutions using high-temperature fuel cells
• Energy systems for remote or off-grid applications requiring robust, long-lifetime components

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces chromium vapor contamination (chromium poisoning) in fuel cells, which helps maintain electrode activity and cell efficiency longer.
• Improves corrosion resistance, thus increasing the lifespan of fuel cell stacks.
• Enables better material compatibility, minimizing thermal stress and associated mechanical failures during temperature cycling.
• Facilitates simpler and potentially lower-cost manufacturing with fewer process steps than conventional coated designs.
• Enhances mechanical integrity and stability of fuel cell stacks thanks to optimal material choices for both electrical conduction and structure.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

An interconnector for high-temperature fuel cells is characterized in that the interconnector comprises two components (A, B) made of different materials. Component (A), which is in contact with the electrodes and ensures the electric connection between the fuel cell units, is made of a chromium oxide-forming, high-temperature alloy, and component (B), which connects the fuel cell units mechanically, is made of a corrosion-resistant, non-electroconducting, high-temperature material which does not bleed any chromium.