Solid Electrolyte Fuel Cells TRIZ Cases

Controlled hydrogen feed and current heating warm a fuel cell stack below 0°C without external heaters, limiting freezing damage and aging.

Varying pore density in the separator evens air flow near the manifold, reducing local degradation and sustaining fuel cell performance.

Output voltage is checked only when pressure, flow, temperature, impedance, and current are in range for more reliable fuel cell stack degradation assessment.

A graded CeO2-based intermediate layer thickens at the cell edge to improve bonding while lowering resistance in the active region.

Hollow fasteners route gas through a frameless SOFC stack, cutting weight and thickness while avoiding adhesive sealing issues.

A copper-oxide interconnect coating sinters to the oxygen electrode, limiting chromium poisoning and thermal stress gaps in SOC stacks.

A tensioned skirt maintains solid oxide fuel cell stack compression through thermal cycling, preserving gas seals and lowering short-circuit risk.

Continuous web processing replaces pick-and-place assembly to create gas-tight membrane electrode joints with lower cycle time, space, and cost.

Stress factor patterns enable universal, reproducible PEM fuel cell defect detection across models with automated diagnostic outputs.

Ionophoric cyclic polyether groups bind free metal ions to prevent parasitic reactions and chemical degradation in fuel cell membranes.

Direct spray deposition of catalyst ink onto a proton conducting membrane eliminates decal transfer steps that cause edge failure, enhancing durability.

Screen printing deposits a thick sealing gasket into rib-formed grooves on bipolar plates, resolving convexity issues and reducing manufacturing complexity.

A fuel cell system connects power generation modules in series and uses integrated control units to manage gas supply for each stack.

A stainless steel separator uses electrically conductive precipitates to penetrate the passive film and lower contact resistance.

Segmented air electrode collector parts with varying porosity and curvature extend oxygen gas retention time, accelerating electricity generation reactions.

Insulating plates isolate manifolds from end plates while protrusions guide coolant flow, resolving complexity trade-offs in fuel cell stacks.

Wave-shaped fuel cell channels use end protrusions to discharge accumulated water, preventing ion dissolution and membrane deterioration at electrode ends.

A fuel cell recovery device supplies oxygen through the electrolyte membrane to oxidize carbon monoxide on the anode catalyst.

A segmented gas sealing part directs fuel and oxidant flows through distinct channels to ensure even distribution across electrode planes.

Semiconductor particles in the membrane separator provide a shunting path to limit anodic potentials and prevent catalyst dissolution.

Hinged gasket-diffusion layer assemblies use seal protrusions to sandwich membrane-electrode units, resolving assembly precision and sealing reliability.

An intermediate seal zone between peripheral and reactive seals captures leaked hydrogen fuel using a dedicated flow circuit.

Reduced adhesive portions on separators minimize gas leakage while maintaining structural integrity against frame components.

Integrated connector design reduces manufacturing costs and assembly complexity while maintaining mechanical strength in tubular solid oxide fuel cell stacks.

Resin frame inner extension contacts solid polymer electrolyte membrane to create a reactant gas non-permeable area.

Limiting current density below maximum OER/ORR thresholds prevents voltage reversal damage while enabling faster cold start times.

Convexities in the fluid introduction site expand the sectional area, reducing pressure loss while allowing thinner cell construction.

Opposing cell voltage terminal protrusions contact via an insulating member to suppress tilting caused by thin separator plate thickness.

Asymmetric buffer grooves in fuel cell separators connect manifolds to channels, ensuring uniform gas supply across the electrode surface.

Internal nozzle recirculation eliminates external compressors, reducing pressure losses and boosting energy density.

Independent resin frame buffers expand manifold openings to distribute oxidant and fuel gases uniformly across electrodes.

A hinge connects integrally molded gaskets to gas diffusion layers, preventing heat damage during molding while maintaining sealing ability.

Wavy and linear groove connecting portions extend in the same direction to ensure uniform reactant gas supply across the catalyst layer.

External witness marks and interconnect windows allow immediate detection of inverted solid oxide fuel cells during assembly without disassembly.

An intermediate layer covers gas diffusion regions in fuel cells to block carbon fiber migration during assembly.

A reinforced membrane-seal assembly uses a porous planar component to hold ion-conducting and seal strips.

A frame equipped membrane electrode assembly uses a compliant adhesive layer to protect the electrolyte membrane from direct contact with the resin sheet.

A Sn alloy coating with conducting particles lowers contact resistance on metal fuel cell separators.

A microwatt fuel cell stack uses gaskets with high water permeability to transport moisture through the membrane for effective water removal.

Segregating conductive material via recesses prevents volatilization and maintains stable electrical contact between electrode interconnects.

A checking method inspects short sides of the clearance in a resin-framed membrane electrode assembly to detect solid polymer electrolyte membrane breakage.

High thermal conductivity plates and compliant seals manage thermal gradients and mechanical stress in planar solid oxide fuel cell stacks.

An in-membrane micro fuel cell integrates electrodes and channels directly into the ion-conducting membrane.

Graded porous structures in end cells drain accumulated water, preventing flooding and maintaining reactant gas flow.

A fuel cell sealing structure uses a bank-shaped main lip and sub lip to maintain stable contact pressure on the membrane-electrode assembly.

Titanium nitride and conductive carbon layers on separators limit oxidation and reduce internal resistance in fuel cell stacks.

A polymer electrolyte featuring a perfluorocyclobutyl moiety and pendant perfluorosulfonic acid groups forms ion-conducting membranes.

Injecting oxygen-containing gas into an SOFC evaporator binds carbon components during evaporation, preventing soot formation without increasing system weight.

Varying channel width and contact angle accelerates fluid flow to discharge water and maintain gas diffusion at the fuel cell outlet.

Cathode electrode extends beyond current collection assisting layer to absorb thermal expansion stress.