Small-Sized Cells Cases/Jackets TRIZ Cases

One-end tab placement and integrated current collectors free internal space in prismatic secondary batteries while improving current collection.

A bent sheet-metal housing jacket replaces multi-part battery shells to cut manufacturing cost while maintaining gas-tight sealing and strength.

An alumina-epoxy protective layer and metal oxide microparticles help electrochemical cell packaging resist heat-sealing damage and short-circuiting.

End-mounted cooling plates cool cylindrical cells from both sides, replacing inter-cell tubes to improve packing density and heat removal.

Surface-contact end plates and a detachable connecting sleeve expand battery-to-battery contact area, cutting internal resistance and improving pack efficiency.

A tuned conductive-layer thickness and resistivity reduce piercing burrs, limit heat generation, and preserve battery cell energy density.

An insulated two-part battery cell adapter prevents positive-negative lapping, lowering internal short-circuit risk while easing bending and assembly.

Protruding electrode ends, conductive members, and side insulation enable unit-cell voltage monitoring while preventing short circuits in thin stacked batteries.

Alternating thick and thin sealing plate regions improve crimping rigidity and airtightness while limiting material cost and capacity loss.

A conductive adhesive layer joins dissimilar metal terminal parts with high conductivity and junction strength while limiting heat-induced deterioration.

A tapered heat conductive member cuts costly material use while maintaining low thermal resistance between the cell body and cooling plate.

Segmenting lithium-ion cells into single pouches limits defect propagation, avoids welding contamination, and improves safety and energy density.

An extended insulating member secures the metal plate during battery crush, preventing internal short circuits and preserving cell capacity.

Dual radial and axial alignment members guide battery pack insertion, prevent miscoupling, and improve reliable power transfer.

Constant-voltage resistance brazing controls interface melting and oxide removal to produce stronger, more consistent Mo pin joints.

An exposed notch in the battery cap assembly enables rapid internal gas venting at rupture pressure, reducing pressure buildup and explosion risk.

A recessed end-cover cavity nests part of the electrode terminal, cutting external terminal volume while preserving sealed electrical connection.

A crimped vent disk, gasket insulator, and interrupt device cut contact resistance and open safer gas paths under excess battery pressure.

A notched pouch case structure minimizes sealing protrusions, improving cooling plate contact, energy density, and forming efficiency.

Angled and rounded corner indents reclaim pouch-cell space while avoiding catching, burring, and cracking at the sealing portion.

Controlled nickel diffusion and layer thickness help thin-wall battery can steel resist iron exposure and corrosion after heat treatment.

A circular, all-direction bendable electrode lead reduces stress concentration at bonding portions and helps prevent breakage from impact and cell expansion.

An expanded pouch section at the lead exit increases bonding with the lead film, improving seal strength and reducing electrolyte leakage.

Preformed package bodies and edge geometry remove redundant battery packaging, avoiding flap folding damage while improving energy density.

A hardness-increasing layer on the electrode uncoated region limits vibration-driven deformation and breakage, improving battery life and safety.

Solid hydroxide, oxide, or carbonate powder on the inner can neutralizes hydrogen fluoride and stably suppresses cylindrical cell corrosion.

A non-adhesive folded side between the cup and sealing parts helps pouch batteries hold shape, cut excess volume, and simplify assembly.

Elastic outer packaging and negative pressure keep electrode-body compression uniform, cutting contact resistance and battery size.

A weaker terminal-to-cover joint releases internal pressure before casing rupture, preserving battery energy density while improving safety.

A reinforced end cap keeps the electrode terminal clear, limits pressure-driven deformation, and improves battery safety and lifespan.

A fused laminate film on the side surface member suppresses wrinkles, improving battery sealing during compact stacking.

A stepped battery lid and convex weld bead redirect laser spatters from insulators while maintaining uniform hermetic sealing.

Interlocking upper and lower box connections reinforce the area between battery modules to prevent bottom deflection in vehicle-mounted packs.

Objective EDS or EPMA control of the Ni-Fe alloy layer improves battery-case steel corrosion resistance while limiting nickel use.

Bent negative electrode uncovered parts create a flat laser-welded can-bottom joint that cuts internal resistance during high-rate discharge.

A sealed cup housing, flat terminal faces, and welded sheet contacts cut dead volume and internal resistance to raise cell energy density.

An integrated cover plate, terminal, and contact layout cuts dead volume in cylindrical cells while preserving high-current paths and pressure relief.

A sulfur-oxygen film on the negative electrode suppresses electrolyte decomposition while improving capacity, swelling resistance, and resistance.

Concentric planar terminals and an insulating sleeve simplify interconnect welding, improve cooling, and lower battery pack thermal risk.

Using the housing as a conductive path evens battery current and heating, simplifies terminal mounting, and improves heat dissipation.

Controlled Fe-Ni diffusion and nickel loading help thin battery container steel resist corrosion, limit iron exposure, and suppress gas generation.

A recessed cavity in the offset terminal pedestal relieves residual stress, strengthens the bushing, and supports overcurrent fusion protection.

Insulating layers stabilize negative electrode bending and overlap, improving weld flatness, reducing defects, and keeping internal resistance low.

Bent uncovered electrode parts form flat grooved surfaces and a tapered through hole that eases welding-rod insertion and prevents separator peeling.

A multi-tab cathode, full-tab anode, and central fill hole improve liquid injection, discharge current, welding area, and safety valve layout.

Longer lead-out pieces and overcurrent cutoff reduce battery pack heating in power tools, improving safety, reliability, and service life.