Fuel Cells TRIZ Cases

An angled distribution channel and thicker port region help a fuel cell bipolar plate deliver more even coolant and fuel flow across the active field.

Bidirectional off-gas inlets and partitioned flow paths extend membrane contact time, improving fuel cell humidification with limited pressure loss.

Separate end plates and springs let fuel cell stacks tune active-area and manifold sealing pressure independently to prevent leaks and over-compression.

Real-time inlet and outlet hydrogen sensing lets a fuel cell power plant prevent starvation while avoiding excess fuel supply.

Graphene nanoplatelets raise through-plane conductivity in vinyl ester BMC bipolar plates while preserving low shrinkage, low weight, and processability.

Brief sub-stoichiometric oxidant pulses recover fuel cell stack performance under sub-saturated conditions while maintaining voltage stability.

By removing the partition plate and nesting gas chambers, this manifold limits thermal expansion stress that can deform cell stack top plates.

Integrated protrusions and receiving recesses simplify fuel cell clamping while improving sealing, alignment, and dustproofness.

An intermediate substrate and hollow support space protect a thin fuel cell electrolyte from assembly compression while preserving output density.

Voltage pattern analysis separates bad channels from weak cells, improving fuel cell stack health assessment under varying conditions.

By assigning voltage control to the first fuel cell unit and current control to later units, the DC bus stays within inverter range without batteries.

Multivalent-cation crosslinking creates hexagonal nanochannels in chitosan, boosting hydroxide transport while preserving alkaline stability.

Sequentially turning off PEM fuel cells and measuring stack potential pinpoints degraded cells for targeted replacement and power recovery.

A porous, hydrophobic electrode structure supports fuel cell operation from 80°C to 240°C across dry and humid conditions while limiting acid loss.

Dual threshold control uses coolant temperature and stack resistance to limit fuel cell power only during actual membrane drying.

A sealed low-free-volume enclosure limits hydrogen-air buildup, prevents corrosion, and keeps fuel cell units accessible for maintenance.

Guide vanes in a segmented fuel cell flow field spread reactants more evenly while lowering pressure differential and manufacturing effort.

Coordinated outlet and turbine bypass valve control keeps fuel cell pressure on target while improving turbine power recovery.

Low-current air starvation pulses restore fuel cell stack performance under sub-saturated humidity by lowering oxygen transport resistance and catalyst poisoning.

A rotating polygon wheel turns pulsed laser welding into overlapping seam spots that limit heat input, reducing bipolar plate warpage and leaks.