Fuel Cells Grouping TRIZ Cases

Thermally matched spacers prevent elastomer deformation under clamping force, preserving redox flow battery sealing integrity.

Formed metal ridges and porous spacers enhance reactant mass transfer, resolving power density limits in polymer electrolyte membrane fuel cells.

A folded sheet heat exchanger channels coolant through an interior region to extract thermal energy from battery cells.

Segmented exhaust ducts route leaked hydrogen from the fuel cell stack to fender openings, ensuring reliable discharge even when the vehicle tilts.

Segmented subgaskets expose membrane centers to reduce shifting, preventing stress concentrations that compromise sealing integrity under high pressure.

A fuel cell stack reconditioning method increases cathode humidity to saturate membranes and introduces hydrogen during shutdown for contaminant reduction.

A composite fuel cell layer employs a laser-absorbing interconnector to prevent burn-through and hydrogen leakage during tight spacing.

Asymmetric electrode overlap prevents direct gas access and catalyst cracking, boosting membrane durability two to three times.

Elastic members positioned along bolt lines distribute loads uniformly to reduce end plate deformation and prevent microshorts.

Gas injection creates bubbles in ducts to insulate electrolyte paths and block shunt currents.

A continuous fuel cell manufacturing process uses laser welding to join component parts from material rolls into stacked configurations.

A mechanically compliant anode current collector uses a flexible substrate with conductive traces to maintain electrical connectivity in solid oxide fuel cells.

Adjusting upstream channel widths relative to rib portions prevents membrane drying and mechanical stress during high-temperature operation.

Wireless sensor nodes measure individual cell performance to resolve inaccurate health estimation caused by treating the stack as a whole.

Differentiated fasteners with highest load resistance at corners prevent end plate deformation and gaps under compressive load.

Asymmetric cross-flow positioning of fuel and oxidizer gas centroids creates diagonal thermal gradients that reduce thermal stress and improve durability.

A fuel cell current-collecting member uses a spacer to separate contact portions and maintain stable electrical connections.

Supporting members overlap inter-cell module seal members to distribute reaction forces, preventing frame deformation and leakage.

Segmented single cell modules with integrated gaskets resolve assembly accuracy and air tightness trade-offs.

Segmented manifold blocks with plastic air lines prevent cold start temperature drops.

Raised electrode structures with conductivity gradients enhance ion transport and heat dissipation in electrochemical devices.

Segmented terminal guides maintain constant gaps between bipolar plate terminals, preventing deformation and short-circuits caused by reduced cell pitch.

A pressure-tight housing filled with pressurized air surrounds a fuel cell to contain hydrogen leaks and maintain thermal stability.

Water seals anode vents during shutdown to prevent air intrusion and catalyst oxidation.

An elastic sealing cap opens under water weight to discharge liquid while blocking external contaminants from entering the lower housing.

Roughened 180-degree bends on collector members prevent interconnector sintering and positional deviation during long-term thermal cycling.

Uniform channel length eliminates flow resistance variations, reducing power consumption and improving cooling efficiency in fuel cell stacks.

Thermally activated adhesive bonds the fuel cell subgasket to the bipolar plate, resolving thin-film handling and alignment issues during stack assembly.

Anode pressure sensors regulate hydrogen supply valves to minimize carbon corrosion during start-up while reducing hydrogen exhaust.

An upstream surge tank absorbs injector pulsation to eliminate pipe vibration and enable precise pressure measurement.

Annular supporting frame prevents channel collapse during stack assembly, ensuring stable fluid distribution.

Blocking oxidant inlets with curing sealant prevents overheating and stack disassembly.

A fuel cell current collector uses through-holes to guide trapped air outside the stacked metal plates.

A fuel cell separator features a spring-like connection portion that deforms elastically to absorb thermal expansion forces.

A fuel cell flat flow field at the lowermost position discharges water smoothly, preventing retention and membrane degradation.

Distinct source and sense tabs on the separator minimize voltage drop errors in non-power generation regions, ensuring precise internal resistance calculations.

A flow manifold and cover integrate with the cell stack to distribute liquid reactants.

Dedicated anode and cathode exhaust conduits enable independent combustor fuel flow, resolving inefficient heat production in subterranean heaters.

A liquid fuel direct supply fuel cell system regulates methanol concentration using a sensor section and controller to maintain optimal operating conditions.

Angled end plates keep pumps vertical during stack tilt, preserving water discharge performance.

A torsion spring contact wire flexes to maintain electrical connection on fuel cell stacks.

Emergency conductive materials in fuel cell anodes provide alternative electrical paths to maintain conductivity when structural damage occurs.

An elastic member relieves pressure on the electrolyte membrane, preventing peripheral damage and ensuring durability.

Discontinuous rear gasket defines air channel in metal plate, eliminating cooling water supply system complexity.

A boost converter regulates duty cycle to lower fuel cell stack voltage during recovery mode.

A fuel cell purge valve controller adjusts discharge volume based on downstream pressure detection to manage unreacted hydrogen gas flow.

Injection molded seal melts bond film to unite fuel cell plates, resolving the trade-off between manufacturing precision and productivity.

A porous distributor manages multiphase reactant flow through capillary pressure effects to control fluid hold-up within the fuel cell stack.