Fuel Cells Grouping TRIZ Cases

Transverse steps in fuel cell plates create flexible transition zones that lower peak compressive forces on subgaskets and diffusion media.

Sinter doped-ceria slurry on metal anodes to form dense electrolytes.

A fuel cell system calculates individual unit cell stoichiometric ratios to dynamically adjust gas supply and maintain stable operation.

Oversized inner box components create an interference fit that prevents gap formation and maintains thermal integrity despite material shrinkage.

Under-panel absorbs ground impact energy, protecting fuel cell units from road surface interference.

Dynamic dispenser positioning creates variable cathode thickness to lower connection resistance while maintaining high application speed.

A fuel cell water transport plate creates differential pressure via an orifice to remove product water without external cooling loops.

An inert conductive clamping member connects adjacent fuel cell current collectors while isolating electrochemical components.

A control algorithm compensates for valve non-linearity in fuel cell cathode airflow, decoupling pressure stability from humidity adjustments.

Flat separator surfaces contact electrode projections to create gas flow paths, eliminating expensive silver conductive passages and reducing production costs.

Calculates voltage differences and timer ratios to detect low performing cells, preventing polarity reversal damage.

A three-dimensional metal mesh spacer maintains gas flow spaces while ensuring reliable electrical contact under thermal stress.

Relocating gas supply and discharge holes from metal separators to the electrolyte electrode assembly eliminates costly insulating processing steps.

Non-wettable electrolyte barrier on bipolar separator prevents catalyst poisoning while composite anode support ensures reliable electrical contact.

Capillary-driven channels in bipolar plates remove accumulated water without parasitic power or membrane drying.

A compressor control system adjusts rotational speed to avoid high-noise regions in fuel cell oxidant supply.

Segmented subgaskets with inward baffles redirect bypass flow to active regions, preventing reactant starvation and voltage drops.

A fluid collection member in the fuel cell inlet gathers liquid water before it enters the stack.

Liquid electrolyte microbial fuel cells eliminate membrane contamination risks while stacked units deliver sufficient voltage for practical power generation.

Magnetron sputtered graphitic films resolve corrosion and contact resistance trade-offs in fuel cell bipolar plates.

High-loading PtRu catalysts on high-surface-area carbon prevent particle coarsening to increase peak power density.

Staggering coolant ducts across adjacent cells creates three-dimensional passages that lower flow resistance in fuel cell stacks.

Laser welding ablates organic coatings on metallic bipolar plates to form fusion bonds without sensitizing stainless steel.

Segmented recesses with closed side walls embed fuel electrodes in flat plate support substrates to maintain structural integrity.

Silicate oxidation suppression layers prevent zirconia-induced end oxidation while matching thermal expansion coefficients to reduce stress.

Inflators expand within end plates to maintain constant clamping pressure, eliminating dead volume from bolts and reducing stack weight.

Elastic protrusions engage concave portions to align fuel cells, reducing displacement and pressure loss.

Decreasing insulating thickness in cooling plate channels reduces temperature differences across the fuel cell stack.

Replacing diesel engines with fuel cell systems reduces refueling frequency and emissions while improving energy efficiency.

A bismuth-cobalt perovskite functional layer prevents chromium poisoning and maintains stability at temperatures below 950°C.

Segmenting the inlet manifold with intermediate discharge points prevents low flow stagnation and corrosion at the stack end.

Stepped insertion holes in end plates allow knock pins to tilt under intersecting loads, reducing bending stress concentration on the positioning components.

Sintered ceramic insulation resolves thermal stress and brittleness in glass solder seals, ensuring gas tightness during thermocycling.

A dummy cell with lower pressure loss directs reactant gas flow, preventing liquid blockages in fuel cells.

A movable probe assembly measures voltage transitions along a fuel cell stack to determine dimensional travel distance.

Controller-driven periodic hydrogen injection prevents oxygen accumulation and carbon corrosion in fuel cell stacks during shutdown.

Turnbuckle tensioning lines draw cover plates into secure engagement, resolving sealing reliability issues in low-profile manifolds.

A segmented solid oxide fuel cell system recycles exhaust heat between high and low temperature stacks to maximize hydrocarbon reforming.

A hydrophilic gas diffusion layer distributes water to maintain a wet seal within the porous anode plate network.

A porous nickel body receives a chromium plating layer that diffuses during heat treatment to form a uniform alloy skeleton.

A flat multilayered ceramic structure with buried metallic conductive structures and porous cermet layers enables efficient fuel connections outside the high-temperature zone.

Resin frames eliminate gas passages from metal separators, reducing separator size while ensuring uniform coolant flow.

A pre-activation apparatus hydrates polymer electrolyte fuel cell stacks using water vapor during hot pressing.

Crosslinking agents establish chemical bonds between catalyst layers and alkaline membranes to prevent interface delamination.

Sequential purge control prevents diluting system overflow by managing anode gas discharge timing during fuel cell start-up.

An integral gas distribution manifold joins directly to a solid oxide fuel cell stack using high temperature bonding seals.

Welding membrane and electrodes to separate cell frame elements creates a liquid-tight redox flow battery unit.

Straight-through tunnel regions in bipolar plates connect header seals to flow channels, reducing pressure losses and water pinning points.

A fuel cell control device detects cooling water bubbles to identify gas leakage causes.

Segmented adhesive bonding areas between separators and frames mitigate drum-like deformation caused by thick gas diffusion layers.