Sealing/Support Means TRIZ Cases

A protrusion-recess seal rib structure aligns adjacent unit cells and improves gas sealing without high loads that deform the seal line.

A 30%+ crystalline glass-ceramic keeps fuel cell connection parts sealed and insulated at high temperature, preventing cracks and leakage.

A peroxide-cured EPDM rubber blend uses tuned carbon black and softener to keep fuel cell separator seals resilient from cold to high heat.

Metal rods embedded in an insulating datum rail cut fuel cell stack deflection under vehicle loads while maintaining alignment and insulation.

Negative pressure and a sealing film replace hold-down devices in bipolar plate welding, cutting changeovers, markings, and leak risk.

A double-shell mold uses damping layers to polymerize bipolar plate gaskets with controlled shape and thickness while preventing plate damage.

A wider flat separator surface bonded by an adhesive sheet keeps ribbed cells aligned under impact and prevents coolant path leakage.

Upper and lower jigs align fuel cell films vertically to prevent unintended contact, reduce warping, and improve bonding accuracy.

A localized hydrophobic channel inlet blocks water entry in fuel-cell and redox-flow plates, reducing freeze damage at low temperatures.

A sheet with an insertion groove and through hole helps fuel cell stacks keep uniform pressure, prevent separator deformation, and stay airtight.

A recessed bipolar plate exposes the guide part to widen hot-press pressure area, improving lamination and fluid exchange in unitized fuel cells.

Adhesive bonding joins the frame, insert, and separators to improve airtight fuel cell assembly, avoid hot-press damage, and ease cell replacement.

Stress-reducing seals with support regions reflow during sintering to protect fuel cell corners and improve stack yield.

A dual-hardness fuel cell seal uses a hard outer sealant and soft filler to improve gas tightness, tolerance robustness, and pressing stability.

Frame-shaped seals on a continuous MEA web cut rim overlap, improve membrane utilization, and support automated sealing for electrochemical cells.

Edge-applied adhesive bonds MEA films and forms a gas barrier while keeping catalytic surfaces free to cut cost, weight, and performance loss.

Liquid-formed riser and perimeter seals cut corner compressive stress in fuel cell stacks while preserving contact area and fuel distribution.

Thin elastomer films on the frame seal uneven bipolar plates, cutting material use, process time, and quality-control burden.

A mica spacer and ceramic cement ring keep glass-ceramic seals in place, preventing high-temperature leakage in fuel cell stacks.

Delaminating the protective film and laminating a carrier web stabilizes MEA frame material feeding for distortion-free transport.

A ceramic-particle seal with 10-25% porosity balances leak prevention and pressure-difference resistance in electrochemical reaction cells.

A porous fabric support stiffens large fuel cell seals and lets sealing material interlock for easier automated placement and simpler production.

Relief regions between inner and outer seals decouple shrinkage and thermal expansion forces, cutting warpage in gas diffusion layer assemblies.

Localized adhesive in gasket recesses is embossed into bonding points, securing bipolar plate gaskets accurately with less material and simpler assembly.

A reinforced elastomeric seal with separated stiffening material keeps fuel cell manifold edges hermetic while reducing leaks, waste, and seal deformation.

An embedded dielectric layer and planar inlet-outlet channels replace complex manifolds to improve fuel distribution, utilization, and stack compactness.

Embedding the cell series in low-permeation insulating casting cuts hydrogen loss, blocks air ingress, and removes ventilation needs.

Patterned seal edge engages separator plate surface to align components, preventing gas leakage and reducing assembly time.

Acrylic adhesive segments secure a polytetrafluoroethylene layer to a graphite substrate in fuel cell components.

A frame gasket uses reinforced fibers in an elastomer base to provide structural rigidity and sealing for fuel cell stacks.

Crystallized glass with controlled shrinkage prevents cracks during heat treatment, maintaining structural integrity and durability in solid oxide fuel cells.

Composite encapsulating material eliminates boron oxide to prevent chemical degradation while matching thermal expansion coefficients.

A hollow prevention dam blocks viscous sealing material from adhering to alignment pins, maintaining uniform pressure and preventing output deterioration.

Removing boron oxide prevents electrode contamination while maintaining thermal expansion compatibility between metals and ceramics.

Separating the injection-molded seal from the thin polar plate via an intermediary frame prevents mechanical damage during assembly.

A crystallizing glass solder composition with controlled barium oxide and silica content forms a composite structure during the joining process.

Direct compression assembly eliminates heat sink bores in ceramic baffles, improving system efficiency.

Viscous glass seals absorb thermal stresses during operation, preventing electrolyte damage and ensuring stack durability.

Strategic welding placement on fuel cell sealing plates maintains gas flow paths and water discharge channels.

Controlled crystallization forms near-zero porosity seals matching thermal expansion coefficients, preventing degradation over 50,000 hours.

Asymmetric flow field heights and offset frame members resolve sealing non-uniformity caused by reactant gas pressure differences, enhancing durability.

Jutted portion penetrates resin layer to suppress thermal expansion differences and prevent peeling.

Dielectric layers on cross-flow interconnects prevent electrical shorting and seal degradation while maintaining uniform fuel distribution.

Asymmetric metal bead seals on bipolar plates resist lateral expansion under compression, preventing bead flattening and leakage in fuel cell stacks.

Puncturing tool creates apertures in planar substrates for electrically conductive path insertion without removing substrate material.

Screen printing through a photoresist-coated mesh produces uniform, flexible glass solder green seals while reducing material waste and production costs.

A composite glass seal incorporates a metal oxide component between the glass and gas passages to block volatile phase migration.

Local welding of the gasket seal to the gas diffusion layer secures assembly reliability without obstructing central aperture gas flow.

Presser projections and clearance grooves in the seal groove inhibit base portion bulging and prevent biting between separators under compression stress.

A SiO2-B2O3-CaO-MgO glass composition forms a crystallized seal between metal and ceramic components at 900°C.

A fuel cell seal uses integrated flow barriers to reduce the hydraulic cross-section of bypass paths between bipolar plates and the membrane electrode assembly.