Fuel Cells TRIZ Cases

A fuel cell stack case features a recessed area to house an interruption control unit within the structural body.

Dynamic valve control balances nitrogen removal with hydrogen retention, preventing membrane dehydration.

Offset anode and cathode channels reduce flooding and pressure drop by orienting flow paths for gravitationally assisted water removal.

A fuel cell compressor control mechanism sets a limitative target pressure to stabilize rotation speed and suppress noise generation.

Arcuate through-hole edges reduce injection molding stress while maintaining cross-sectional flow area.

A fuel cell stack activation method uses electrical shorting between adjacent cells to decrease voltage.

Displacement absorption tunnels intersect circular beads to absorb compressive stress, preventing buckling and fluid leakage in plate assemblies.

Dummy cells at end portions drain condensed water, stabilizing voltage and protecting MEA catalysts from deterioration.

A fuel cell system uses a control device to stagger switching times across multiple cells for continuous power generation.

Extended current collector edges increase edge area current density, lowering cathode potential to prevent membrane degradation.

A gas circuit design manages anode pressure in solid oxide fuel cells by positioning a conveying device upstream of a dividing device.

A fuel cell stack uses a spring strap and diaphragm to apply compressive force across the assembly.

Delayed pressure regulation valve feedback suppresses cathode gas hunting while maintaining accurate flow rate control.

A fuel cell system integrates a separation assembly to extract carbon dioxide from anode exhaust streams.

Ribbed sealing surfaces on fuel cell plates integrate sealing functions to eliminate separate components and reduce device complexity.

A fuel cell system monitors stack voltage and detects overcurrent to trigger immediate power generation stop.

A fuel cell stack mounting structure uses a linear ball bush to guide the second end plate along the longitudinal axis.

Phosphorous polyol and expandable graphite modify polyurethane foam composition to achieve V0 flame retardancy ratings, preventing rapid fire growth.

A fuel cell control device reduces power generation to dry the electrolyte membrane.

An assembly apparatus detects airtightness defects while the stacked body is held in a compressed state, preventing leaks caused by repulsive force changes.

Three-frame assembly with flush gasket contact surfaces reduces gas cross-leakage and improves durability in solid polymer electrolyte fuel cells.

Communication holes in the frame release trapped air between inner and outer seals, preventing pressure buildup that breaks adhesive bonds during curing.

An asymmetric flat surface on the collar member prevents rotation relative to the end plate, ensuring stable positioning pin attachment and efficient assembly.

An ejector-based circulation loop recycles unreacted hydrogen in dead-end fuel cells, reducing consumption and eliminating pump power costs.

Local welding secures reinforcement frames to electrolyte membranes, preventing delamination and hydrogen-oxygen contact.

Chemical modification with phosphonate radicals anchors phosphoric acid in the membrane, preventing leakage and sustaining proton conductivity.

Coating a 30-micron membrane onto gas diffusion electrodes reduces swelling while maintaining high ion conductivity for dual-mode operation.

Silicate-based inorganic ionomers resist thermal cleavage through phosphonate bonds, solving flammability issues in organic polymers.

Controller detects combustor flameout and activates igniter to maintain stable power output.

A bead seal structure uses an intersecting element to ensure uniform surface pressure distribution.

Sensors detect hydrogen or oxygen presence at module outlets to trigger isolation valves, preventing thermal damage and voltage drops from gas mixture leaks.

A three-electrode fuel cell generates hydrogen internally via electrolysis to boost power density.

Protruding terminal portions shift vertically to enable direct voltage measurement between adjacent membrane-electrode assemblies.

Pre-assembling the seal on the bipolar plate prevents crushing during assembly, ensuring sealing integrity and reliable operation.

A fuel cell frame integrates protruding support members to disperse surface pressure across the membrane electrode assembly.

Offset straightening rollers align bipolar plate faces to parallel planes, reducing bearing pressures needed for airtightness.

Segmented channels and a porous cathode structure distribute reactants uniformly while minimizing pressure drop across the fuel cell stack.

Segmented coolant passages with independent manifolds maintain uniform temperature distribution across end power generation cells.

A solid-oxide fuel cell system supplies raw material to the combustible channel after power generation stops.