Small-Sized Cells Cases/Jackets TRIZ Cases

A UV-cured separator coating reinforces the winding hole wall to suppress jelly roll core collapse and lower short-circuit risk.

A helical laser path welds the terminal wall to the current collector with uniform penetration, reducing false welds, burn-through, and foreign matter.

Surface-modified cathode particles and multiple positive leads improve reaction uniformity and lower internal resistance in high-energy batteries.

A softened terminal region improves welding to connection members while preserving strength, boosting battery module stability and conductivity.

Cooling channels, cell separation, and lead-coupled fins remove heat and limit thermal propagation between adjacent battery cells.

An integrated taping unit replaces separate cell cartridges, improving battery module stacking, insulation, compactness, and assembly efficiency.

Segmented uncoated electrode portions improve current collection and electrolyte impregnation in cylindrical batteries while reducing heat and resistance.

A bent sealing part and wraparound insulating member cover exposed cut surfaces to improve electrical isolation between the cell and module frame.

Helical outer-side laser welding stabilizes terminal-to-collector penetration, reducing false welds, burn-through, and battery contamination.

Controlled negative and positive coating overhangs improve electrode assembly height uniformity, reducing lithium plating and fit issues.

Offset terminal posts on different radii let annular probes contact correctly without secondary positioning, shortening battery cell formation cycle time.

A turned current collector edge moves the weld away from the electrode assembly, reducing heat damage and improving cell yield.

Controls electrode winding fit, coaxiality, and low-SOC assembly to curb lithium deposition and uneven stress in large cylindrical batteries.

Positioning the current collector fuse and insulator blocks cutoff debris from entering the jelly-roll, reducing separator damage and shorts.

A three-layer polypropylene terminal film preserves battery package adhesion under heat, limiting curling, foaming, and insulation failure.

Separating the pressure relief portion from tab lead-out structures simplifies battery cell welding and assembly while preserving strength.

Through-hole busbar connections let cylindrical batteries wire from one side, cutting wiring space while maintaining insulation reliability.

Placing the identification mark in the exposed plate's central width region reduces bending and improves marking accuracy and durability.

Tight wound-core alignment within the casing reduces uneven stress, electrolyte squeeze-out, and lithium deposition in large cylindrical batteries.

Controlled negative-electrode overhang in a wound cell improves height uniformity, capacity consistency, housing fit, and lithium plating resistance.

An insulating member with a radial protrusion separates the cap and wound electrodes to reduce short-circuit risk during cylindrical battery sealing.

An internal adhesive layer fixes the electrode unit inside a pouch battery, limiting tab damage, ageing, and current density peaks.

A dual-case battery uses contrasting colors and rupture grooves to reveal swelling visibly while keeping the inner case intact.

Controlled 100-500 ppm water during electrolyte injection forms an AlF3 layer on the positive foil, reducing corrosion and short-circuit risk.

An extending insulating member keeps shifted battery tab groups from contacting the sealing plate, preserving insulation while allowing wider tabs.

A welded current-collector edge and metal housing closure replace separate poles, cutting resistance, assembly steps, and dead volume.

A shape memory alloy venting member opens a pouch cell at a set temperature to release gas without electrolyte contact or added dead space.

Copper collector windings contact the base and shell to improve current flow, cooling, and active material capacity in cylindrical cells.

Spaced ultrasonic electrode cores in a separator add electrolyte volume, improve heat dissipation, and limit impurity buildup that slows Li-ion charging.

Fracture portions in the current collector create a controlled flame path during thermal runaway, limiting pinholes and beading damage.

A terminal plate overflow groove redirects sealant away from the through hole, limiting top cover thickness and preserving battery cell energy density.

An insulator with integrated limiting features keeps paired current collectors from overlapping under vibration, reducing battery cell short-circuit risk.

Balancing sulfur loading with a low electrolyte-to-sulfur ratio helps lithium-sulfur cells reach high energy density without losing stability.

An inclined thin-wall vent section fractures at a set internal pressure to release gas reliably while preserving battery shock resistance.

Mirrors, lighting, and one camera capture the full cylindrical battery side surface without rolling, reducing image noise and improving defect visibility.

An inner electrolyte pouch opens under rising cell pressure, replenishing depleted electrolyte to limit resistance growth and extend cycle life.

A nested housing and cover-plate tab layout frees battery space while improving sealing reliability and adding explosion-proof venting.

An asymmetric positive and negative tab stack layout prevents separator burning during welding while preserving battery energy density.

A Formula 1 electrolyte additive forms a passivation layer on stainless steel battery surfaces to block corrosion and improve cycling stability.

A central terminal and annular tab connection shorten current paths, cut internal resistance, and improve battery charging and overcurrent capability.

A gas-permeable film and moisture absorbent in the pouch seal release internal battery gas while blocking moisture ingress.

Direct tab-to-lid welding removes the lead plate and current collecting ring, cutting internal resistance while strengthening the battery connection.

Fragile current collector sections break and bend under high cell pressure, clearing the vent path for safer thermal runaway discharge.

Nested electrode tabs, spacers, and joined insulating sheets improve prismatic battery energy density while keeping external connection stable.

Varying die-edge curvature around the electrode tab prevents molding interference and preserves pouch cell case integrity.

A low-viscosity carbonate electrolyte with tuned ion diffusion improves impregnation, fast charging, and high-temperature life in cylindrical cells.

A larger battery body with a narrower opening cuts sealing assembly weight while preserving durability and enabling higher capacity.

An insulating film wrap shifts overlap to the thinner outer turns, improving cylindrical cell shape and helping prevent lithium plating.

An integrated upper cover and bus bar frame uses lead-insertion slits to prevent hinge damage and improve battery module assembly precision.

Projection portions on the base member restrain terminal deformation under high torque or rust-proofing oil, keeping battery post fastening stable.