Small-Sized Cells Cases/Jackets TRIZ Cases

Surface unevenness and insert injection molding strengthen cap plate-terminal insulation adhesion to help prevent battery short circuits.

Uneven cap plate and terminal surfaces improve insert-molded insulation adhesion, extending crack paths and helping prevent battery short circuits.

Elastic pressure plates built into the housing walls absorb battery volume changes to maintain pressure without pumps or control lag.

Direct cap-plate welding removes beading and crimping parts, freeing electrode space to raise battery capacity while cutting assembly time and cost.

A connector with a heat channel vents circuit board heat through housing openings, lowering battery module temperature while maintaining sealing.

Asymmetric battery-side distinguishing members reinforce rail joints, prevent wrong mounting, and reduce breakage in detachable DC power packs.

An extension portion wraps the uncoated battery-case edge to block corrosion under heat and humidity without adding complex forming steps.

An immersion-failure tape and expanding tape let the wound electrode fit the can, cut impedance, and improve vibration resistance.

Uneven terminal pads and a pressure-deflecting reversal element create a reliable short circuit during overcharge to prevent battery thermal runaway.

A curved floor pan packs cylindrical cells against the vehicle underbody to preserve airflow attachment while using battery space more efficiently.

A 3D substrate with fitted cell seats replaces individual metal cans to cut battery pack weight, save space, and improve cooling.

A snap-fit battery terminal joins the current collector without welding, avoiding metal spatter, short circuits, and self-discharge.

Bent buffer parts and weak links let a battery current collecting plate absorb cell expansion pressure and protect power continuity.

Spaced escape slots and isolation space in a current collecting plate relieve encapsulation pressure and protect cylindrical battery cells.

A protrusion-and-groove collector plate keeps electrode ends from tilting inward, preserving the core opening for welding and electrolyte injection.

Internal sealing isolates the battery housing weld mark from humidity, preventing galvanic corrosion and extending pack service life.

A closed-loop heat-shrink film replaces wrinkle-prone tape to isolate the tab from the cell wall and maintain stable battery insulation.

A low-melting intermediate member blocks welding heat to the gasket, enabling airtight battery sealing without bulky crimped parts.

A heat-shrinkable film forms a thin, smooth barrier around the electrode tab area to prevent wrinkles, warping, and casing insulation failure.

Side-casing galvanic contact measures battery cell state closer to the reaction zone, improving regulation accuracy and module reliability.

A flange-shaped external terminal buffers external load paths to preserve terminal joining force and limit resistance rise in sealed batteries.

A recessed socket and terminal layout improves battery waterproofing, protects wiring, and reduces protrusions that hinder transport.

A lateral top-cover connection shifts current into the shell busbar, raising capacity without added battery height or thicker top busbars.

A staggered vent path shields the breathable member from external impurities, preserving battery cell degassing and reducing clogging risk.

A recessed battery cell housing thickens the cover-weld area while thinning the body to reduce cracking risk and preserve energy density.

A single cell frame with spacers stabilizes cylindrical battery cells, cutting frame count, short risk, and assembly cost.

A hydrophobic vent layer releases gas from pouch batteries while blocking moisture, limiting electrolyte leakage, and reducing hole corrosion.

A vertically graded binder swelling profile keeps electrolyte evenly distributed in non-aqueous secondary batteries, improving cycle life.

A thinned electrode pillar and raised welding portion enable external joining, reducing metal shavings, alignment demands, and weak battery connections.

Folded positive lead portions pass through the collector plate and join above it, shortening the current path and reducing battery internal resistance.

Notched insulation tape reduces end overlap in jelly rolls, preventing separation and connection defects while supporting higher battery energy density.

A porosity-graded negative electrode improves electrolyte retention and reduces uneven distribution, extending non-aqueous battery cycle life.

Segmented insulation plate openings let thinner battery cells keep insulation while improving electrolyte injection and gas discharge.

Dual-beam and wobble welding improves battery tab-to-collector and collector-to-terminal joints by reducing spatter and strengthening dissimilar-metal welds.

A through-hole cap plate and curved terminal protrusion isolate terminals, disperse pressure, and vent gas in ultra-small rechargeable cells.

An external welding structure joins a thinned electrode pillar to the current collector, improving weld detection, throughput, and current capacity.

A recessed first gasket and spaced second gasket reduce heat transfer in cylindrical cells while preserving hermetic sealing and insulation.

Microchannels embedded in a conductive electrode evaporate cooling fluid to control battery heat without adding bulky external cooling structures.

A tuned positive-to-negative electrode capacity ratio helps a reflow-soldered coin cell retain performance in circuit board assemblies.

Parallel tab current collectors spread current flow to cut resistance, heat, and weld damage in high-capacity cylindrical batteries.

Pressure welding joins the contact element to a nickel-plated cell housing to achieve a gas-tight seal while limiting coating damage and stress.

Protective tape on the negative electrode’s non-coated end adds rigidity, prevents winding wrinkles, and preserves battery life.

Varying exposed electrode angles across the winding keeps multi-tab positions accurate despite thickness variation while preserving battery capacity.

Curved electrode assemblies create space for a lithium replenishing apparatus that offsets lithium loss and boosts battery life and energy density.

Offsetting the junction box and service plug to the battery row end frees layout space and increases terminal separation to reduce short-circuit risk.

Conductive and insulative adhesives replace welding in battery module terminal joints, improving stress relief, isolation, and manufacturability.

Localized laser absorptivity at the case-sealing plate interface blocks stray beam entry during welding and protects the housed electrode.

A wound-electrode layout balances electrode expansion and contraction to sustain voltage and capacity under high pulsed discharge.

By extending long cells across the pack and removing transverse beams and screws, this case boosts cell volume ratio, energy density, and assembly stability.