Cell Sealing Materials TRIZ Cases

Defined fold and fusion-seal positions in a pouch battery sealing part preserve insulation resistance after multiple folds.

A separate metal safety valve and resin fixing ring enable precise vent formation, stable opening pressure, and hermetic sealing in larger battery cases.

Internal pressure drives a movable conductive member to vent gas and short opposite terminals, reducing battery explosion risk with fewer parts.

An adhesive-wrapped folded seal edge buffers impact in pouch cells, preventing shell puncture while preserving battery width and energy density.

A bracket-molded adapter strip prevents welding deformation in battery units, improving connection reliability and assembly efficiency.

A narrowed pouch sealing section acts as a built-in vent, directing thermal runaway gas release to limit swelling and explosion risk.

A gasket flange and external fastening plate strengthen the battery terminal joint, resist vibration and shock, and preserve internal cell space.

A thinner weak area in the battery sealing nail enables reliable gas venting while cutting machining removal, cost, and thickness variation.

A dented lead film opens an internal gas path while a non-overlapping indented seal preserves airtightness and reduces moisture ingress.

A two-stage seal pushes inner resin over laminate metal edges, preventing corrosion and insulation parts in pouch batteries.

Staggered electrode terminal connection regions separate tension points to resist impact disconnection and keep battery charging reliable.

A protruding-ring conductive block stabilizes the terminal seal during riveting, improving end cover sealing and battery assembly yield.

A grooved battery cell spacer isolates the tab during welding and vents gas to prevent short circuits, poor insulation, and cell expansion.

An expandable elastic sleeve and central rod create an interference-fit through-hole seal that blocks electrolyte leakage and moisture ingress.

An elastic sealing member with a through-passage enables electrolyte reinjection, blocks backflow, and preserves battery cap sealing.

Separated seal and stress-relief resin zones around roughened terminal bands maintain airtightness by limiting thermal-cycle cracking.

Angled seal-can wall sections increase flat battery internal volume while preserving gasket sealability for higher capacity.

Rigid caps and exterior film increase pouch-cell capacity while limiting moisture ingress and directing gas or flame release during failure.

A cutout sealing vent layer releases internal gas under heat and pressure, improving pouch battery safety without increasing size.

A rigid cap joined to exterior film strengthens pouch sealing, reduces moisture ingress, and directs gas release under internal pressure.

A split joint layout combines mitered sealing fillets with lower end-face support to simplify battery housing frame manufacture while improving tightness and crash load transfer.

Side and bottom insulating members spread binding-strip pressure and shield battery cells from metal burr damage in battery packs.

A low-melting vent layer at the pouch seal corner opens under heat and pressure for rapid gas release and lower ignition risk.

Separate caps and exterior film improve pouch-cell sealing, block moisture ingress, and direct gas release under abnormal conditions.

Protrusions and blind holes self-position the isolation member in a battery end cover, preventing dislocation and speeding terminal post assembly.

Segmented cap-to-film sealing raises pouch-cell capacity, limits moisture ingress, and steers gas release during abnormal pressure.

Edge protrusions on the sealing block restrain lead-film flow during pouch sealing, improving seal durability and battery quality.

A segmented sealing region keeps welding away from the electrode terminal, improving battery cell sealing efficiency and reliability.

A notched boss and connecting block create a welding recess that replaces complex molding and riveting in battery top cover assembly.

Fluid pressure forming shapes the battery pouch exterior to remove sealing dead space and raise secondary battery energy density.

Cold heading forms a copper-aluminum battery pole with full material use, simpler joining, and better sealing and insulation at the cover interface.

A rotatable clamped pressure relief vent shares the electrolyte fill hole, enabling replenishment, preserving sealing, and saving cell space.

An elastic sealing member opens under refill pressure, then reseals the battery electrolyte inlet to prevent leakage, backflow, and degradation.

Alternating cohesive and interfacial seal portions localize resin crack growth at battery terminals and help prevent full seal failure.

A pressure-triggered adhesive vent opens to release pouch gas, then reseals to stop residual electrolyte and gas leakage.

A folded sealing edge with a tightly adhered attachment member suppresses pouch-cell deformation, delays venting, and improves cooling.

A nested first and second seal at the electrolyte injection port helps prevent leakage while balancing insertion ease and high-temperature durability.

Segmented pouch seals use polymerized inner layers and welded metal layers to direct gas release and reduce damage during thermal runaway.

A variable-thickness annular seal improves button battery sealing at housing openings to block moisture ingress and reduce corrosion risk.

A one-way fill port valve simplifies prismatic battery electrolyte filling and post-formation degassing while preventing backflow.

An insulating sealing member routed along the battery wiring prevents contact under external loads and helps maintain stable charge-discharge operation.