Small-Sized Cells Cases/Jackets TRIZ Cases

A cap plate with an integrated, locally thinned gasket preserves sealing while freeing more electrode space to increase battery capacity.

A mirror-based reading section captures battery cell barcodes at variable positions, improving recognition accuracy without multiple barcode locations.

Localized high-conductivity insulation paths move heat from cells to the cooling plate, reducing top-bottom temperature deviation and extending pack life.

Conductive first and second cases replace separate battery terminals, while an insulating gasket maintains isolation and lowers part count.

An auxiliary groove in the cap plate disperses notch stress, preventing premature rupture under internal gas pressure in cylindrical cells.

Heat-treated Ni-Co-Fe plating lowers surface resistance and improves alkali resistance while limiting Co elution in battery can steel.

By separating electrode end positions into stress-vulnerable and amplification regions, this case prevents core collapse and internal shorts.

A roughened laser-formed vent groove opens at preset pressure to release battery cell swelling gases without weakening the full case.

A roughened grooved vent in the battery case opens under swelling pressure to release gas safely while limiting case damage.

A split cell carrier with blind-hole receptacles simplifies immersion-cooled battery module assembly while improving handling and heat transport.

An elastic internal support member helps cylindrical rechargeable batteries resist electrode warpage, reduce stress, and prevent short-circuits.

An overmolded clamping cover and soldered cell connector secure cylindrical battery cells, improving impact protection, contact reliability, and assembly.

A two-part blind-hole cell carrier enables direct immersion cooling, easy cell replacement, and burst protection against thermal runaway spread.

A sealed extinguishing agent stored in the can beading groove is released on ignition to suppress fire and limit spread in cylindrical batteries.

Side-by-side conductive wires replace a single tab edge to reduce winding stress and prevent electrode plate cracking in cylindrical batteries.

Ammonium-sulfate polyurethane foam improves heat absorption and burst protection in cell carriers during battery thermal runaway.

Direct vent-to-collector tab connection cuts internal resistance, heat generation, and cap assembly material cost in a cylindrical secondary battery.

Segmented current collectors with support and housing coupling portions cut resistance, simplify welding, and protect joints from vibration damage.

Separate communication terminals and a regulated low-power output reduce power-line noise, avoid cell imbalance, and support controller startup.

Radially bent uncoated electrode layers improve current collection and welding strength while keeping electrolyte injection paths open.

Direct current-collector connection to the housing bottom removes winding dead volume while adding dual overpressure protection.

A cut-and-raised insulating plate lets battery leads pass without through holes, improving lead-out insulation and reducing short-circuit risk.

A multi-layer tab stack layout shields separator film during welding, improving tab connection quality while reducing short-circuit and overcurrent risk.

A screw-coupled current collector replaces ultrasonic welding to avoid battery-cell debris, protect the electrode assembly, and simplify assembly.

A self-healing polymer plug releases battery gas and then closes its pore, enabling electrolyte injection while reducing vent rupture and fire risk.

Multiple deep-drawing and ironing stages cut cylindrical battery case roughness to Ra ≤ 0.1 µm, improving corrosion resistance.

Replacing ultrasonic welding with a threaded terminal-current collector joint prevents fumes and spatter while preserving stable battery cell conductivity.

Arc slit cutting near the pouch bend relieves stress concentration, preventing cracks and preserving residual aluminum during cell forming.

A segmented collector with bridges, tapered tab coupling parts, and an insulating cover lowers self-resistance and protects welds from vibration damage.

A concentric inner rod and outer collector stabilize pouch-cell stacking while accommodating pressure expansion and compact electrical connection.

A 3 μm oxygen-block coating at the lead-cover overlap suppresses rust and electrolyte leakage during continuous charging.

Guiding ribs and deformable membranes release battery pack pressure while steering hot gas away from nearby components.

An integrated subplate replaces terminal plates, rivets, and current collectors to cut cell resistance, simplify assembly, and lower battery cost.

A notched negative current collector separates under can pressure, allowing faster electrode assembly withdrawal during battery fire events.

Offsetting the peak diameter directions of the battery can and outer tube limits flattening, protects the separator, and improves cycle life.

Controlled small pores in lithium composite oxide cathodes improve initial charge-discharge efficiency without sacrificing capacity retention.

An overlap of substrate and separator layers extends beyond the electrode end to resist deformation, cracking, and pressure in cylindrical cells.

Varying limiting through-hole lengths at module ends reduces pole interference and improves battery module assembly tolerance.

A pre-formed cap-up notch ruptures at set internal pressure to vent gas, limiting pressure buildup and reducing battery explosion risk.

A pre-assembled cap-up, safety vent, and fused gasket simplify cylindrical battery crimping while improving alignment and sealing.

A clip-guided fold uses a plate edge as a fulcrum to keep current collector tabs flat, avoid tears, and cut battery assembly rework.

A positive-polarity rigid container and vented lid raise prismatic cell packing efficiency, durability, and manufacturability.

A welded insertion-hole joint reduces fine interface gaps in secondary battery terminals, improving conductivity and bus bar connection strength.

A shaped insulating-plate lead hole guides positive lead folding to prevent shorts while preserving insertion and gas exhaust in cylindrical cells.

A recessed terminal groove and flat top surface keep weld debris away from the cell interior while supporting stable busbar welding despite misalignment.

An anti-deformation tape on the positive electrode tab helps restrain core deformation and lower short-circuit risk in compact secondary batteries.

A welding aid layer controls end cover weld penetration to avoid false welding, cracks, and electrolyte leakage in battery cell assembly.

A shrinkable insulation assembly releases non-flammable liquid to absorb heat and block thermal runaway spread between adjacent battery cells.