Small-Sized Cells Cases/Jackets TRIZ Cases

An opening in the battery cover exposes the bus bar and terminal positions, enabling easier wiring without interference or damage.

Elliptical cell pockets with slits isolate local wall deformation, fitting battery diameter variation without distorting adjacent holders.

A locally softened vent portion and notch let the case release excess battery pressure in a controlled way, reducing swelling damage and explosion risk.

Elliptical cell pockets with axial slits deform elastically to fit cylindrical cells, improving alignment and heat transfer despite size tolerance.

A positive-side liquid injection port with laser-welded rivet and collector plate improves sealing, weld strength, and defect detection.

Variable lead-film thickness and a bent pouch case improve electrode-lead sealing, reducing venting risk during heat exposure and cycling.

A linear ester electrolyte above 25.5 wt% improves ion transport and infiltration in cylindrical cells while supporting even pressure distribution.

A rivet terminal injection hole and welded collector plate improve electrolyte filling, sealability, and defect inspection in cylindrical batteries.

Front, middle, and rear cell thermistors capture pack temperature range and change rate while cutting collection ports and wiring.

A spacing plate and overlapping pressing plate restrain lying cylindrical cells, preventing warpage under vibration while preserving heat exchange.

A recessed, bent, and hemmed battery case edge protects exposed cut surfaces from corrosion while improving cap fixation and sealing.

Multiple shorter electrode stacks are wound together to raise cylindrical battery capacity while improving winding speed and electrolyte impregnation.

A convex insulating member nests into the cell end vacancy to prevent displacement, improve insulation, and stabilize tab welding.

A ring-shaped insulating member around the terminal cap blocks internal short circuits while preserving energy density in cylindrical batteries.

A softened vent portion in the battery case releases swelling pressure before terminal damage, improving pressure control and cell stability.

A terminal holding part in the insulation protector keeps sensing-line terminals positioned before busbar connection, preventing interference and damage.

A phosphorus-containing nickel layer protects the battery cover plate fragile zone from electrolyte corrosion while preserving safe pressure release.

A roughened insulating member raises friction around the electrode assembly to limit impact-induced sliding and improve battery cell reliability.

A shaped insulation layer on the positive electrode plate covers R-corners, prevents short circuits, and removes adhesive affixing steps.

A deformable sleeve compresses solid-state cell layers uniformly, avoiding external pressing machinery and simplifying production.

A blow molded parison bonds battery enclosure halves into a sealed liner that resists chemicals and impulse events with lower assembly complexity.

Different tab shapes and orientations improve tab forming, current collector connection, and battery capacity with manageable assembly complexity.

A two-housing battery layout sandwiches one tab between enclosure walls to save cell space, improve sealing, and add explosion-proof venting.

Lower-melting metal inserts at the can ends redirect thermal runaway pressure away from the side wall, reducing damage and chain ignition.

Snap-fit cathode and anode interfaces replace separate connectors to speed battery cell assembly, cut parts, and support compact modular packs.

A cap plate notch is tuned to rupture before can uncrimping, improving cylindrical battery safety while limiting excess crimp material.

Induction-heated magnetic members bond lead tabs and insulation films in one step, cutting process time while avoiding film deformation.

Specified bead widths and laser-welded electrode tabs improve collector joining, lowering resistance and heat in high-rate secondary batteries.

A thickened can section overlapping the positive electrode end restrains electrode movement, avoiding safety valve collisions and resistance rise.

A unified insulation piece separates the tab, end wall, and sidewall to cut short-circuit risk while preserving battery cell space.

A flanged riveted electrode terminal expands current path cross-section to cut inner resistance, heat, and wiring complexity in cylindrical cells.

A side-mounted protection circuit over the battery connection member prevents overcharge, overdischarge, and overcurrent without enlarging the device.

A ring-shaped insulator in the winding cutting area blocks contact between uncoated electrode portions during expansion, improving cell reliability.

A deformable sealing portion expands after insertion to fit the battery housing inner surface, improving electrolyte sealing and reducing leakage.

An external terminal recess and corrugated pressing portion enable cleaner welding, lower resistance, and leak-safe sealing in cylindrical cells.

Localized roughness around the liquid-injection hole cuts laser reflection and welding defects, improving sealing yield in battery end covers.

Opposed tab shapes and directions improve electrode assembly processability while increasing secondary battery capacity.

Resistance measurements at collector plates and can housing enable non-destructive in-line screening of cylindrical battery weld defects.

A layered aluminum-copper terminal maintains contact area under high clamping pressure, reducing resistance and improving battery pack connection stability.

A supported tab extension blocks the fill-hole path, reducing internal gap while preventing top-cover short circuits in battery cells.

Inclined connection surfaces in a secondary battery case suppress bat-ear formation, cut dead space, and improve pouch-cell energy density.

A single-end seal and shared lead exit reduce dead space in a flexible flat secondary battery, improving volumetric energy density.

Reduced active material at terminal contact regions limits ion diffusion into non-opposing areas, improving solid-state battery efficiency.

A cap plate notch is tuned to rupture before crimp uncrimping, improving cylindrical battery venting safety and material efficiency.

A bent-and-welded battery can replaces deep drawing to achieve uniform thin walls, lower cost, and higher cell capacity in the same size.

A zigzag-bent separator with a wound outer layer and extension cushion protects stacked electrodes from impact and vibration damage.

Multiple stacked electrode subassemblies shorten plate length, speeding large-diameter winding and improving electrolyte impregnation.

A curved protruding current collector expands terminal weld area, strengthening bonding and electrical connection in a secondary battery.

A heat-sensitive internal chamber releases a combustion abatement agent into an overheating Li-Ion battery to suppress fire at the source.

An axial electrode terminal layout cuts radial space in the end cap assembly, saving material while improving battery cell energy density.

Inorganic particles held in nanofiber scaffold voids improve electrolyte wetting while limiting binder content to reduce separator resistance and detachment.

Angled slits split battery tabs into sub-tabs, flattening cylindrical end faces without kneading damage, metal filings, or active material loss.

A one-sided sensing substrate crossed with a sensing terminal captures cell state data while protecting sensors and simplifying battery pack assembly.

A sized terminal opening in the top adhesive sheet eases end cover assembly while preserving insulation and reducing dust buildup.

Die-cut sub-tabs arranged in a staggered radial layout avoid tab kneading, reducing metal debris, short-circuit risk, and assembly variation.

An internal expanding mandrel applies adjustable radial pressure in cylindrical solid-state cells to maintain electrode contact, prevent voids, and extend life.

A slidable reinforcement member and grooved side plates raise holding strength in lightweight film-covered power storage modules under impact.

Both electrode terminals are aligned at one end to simplify cylindrical battery pack assembly, cut connection resistance, and raise energy density.

A thin bridge of 2 mm or less and refined aluminum grain size improve pouch-case moldability, enabling deeper cups and higher energy density.

Snap-fit cathode and anode joints reduce cell misalignment, simplify pack sizing, and support strong terminal connections during battery assembly.

An insulated terminal post and isolator gap block conductive crystal paths in battery end caps, reducing short circuits and electric corrosion.

A cap vent with a ball-welded block lets activation gas escape before final sealing, reducing pressure buildup and electrode expansion.

A cut-back weld flange increases battery housing interior volume and energy density while preserving the hermetic seal.

Spirally wound outer tabs on a stacked solid-state battery raise cylindrical cell capacity while improving pressure uniformity and short-circuit safety.

Offset laser welding across opposing extending surfaces blocks sputter and heat from reaching the electrode assembly while maintaining weld strength.

A stronger support plate with stepped regions and grooves disperses clamping stress in cylindrical Li-ion battery cap assemblies to prevent deformation.

A jig-guided internal laser weld joins the electrode tab to the lower can, preventing exterior traces and enabling optical weld-state monitoring.

A Ni-Fe alloy interlayer and controlled nickel hardness improve steel sheet workability, reducing burrs, chips, die damage, and short-circuit risk.

By coating only non-welded tab surfaces, this battery electrode structure improves tab-to-lead weldability while preventing short circuits.

A concave electrode terminal thins the connection zone to cut welding power and heat while protecting battery cell parts during tab joining.

Bent uncovered electrode parts, grooves, and fused separator layers suppress short circuits and separator deformation in wound lithium-ion cells.

Tilted sealing hole and pole walls compress and retain the ring in a thinner battery top cover, improving sealing reliability and energy density.

Primary and repair laser welds with electrical testing restore defective bus bar joints while maintaining terminal alignment in traction battery packs.

Grooved reinforcing members and recessed side plates stiffen a film-wrapped cylindrical cell module against impact deformation while preserving sealing.

Elastic parts in the current collector absorb vibration, protect protruding substrates, and maintain low-resistance battery connections.

An annular protruding section around the relay terminal blocks wrong battery orientation while preserving correct terminal contact and current flow.

Well regions in the holder localize filling resin around connections, securing cells while cutting resin use, weight, and material cost.

Integrated housing contact in a cylindrical Li-ion cell cuts connector heating and internal resistance while improving heat dissipation.

Individual heat sinks and ventilation keep battery cells at consistent temperatures, improving charge efficiency and battery life.

A deformable profiled equalizer keeps airflow paths open as pouch cells swell, reducing stress, overheating, and housing damage.

Integrating a pressure indicator pin into the terminal region allows visual detection of increased internal pressure without adding external sensors.

A sealed battery film casing uses an insulating resin layer to cover electrode terminals extending from the sealing part.

Integrating battery management modules into cell carriers eliminates separate holders, reducing device complexity and manufacturing costs.

A battery housing integrates a temperature regulating element to maintain stable cell temperatures across varying operational conditions.

Integrating phase change material into battery cell sealing parts absorbs heat during operation to maintain optimal temperature ranges.

Unit batteries with exposed cap plates connect directly to a protection circuit module via integrated terminals.

An internal fixing member secures the electrode terminal support shaft, preventing nut loosening from vibration and maintaining stable electrical conductivity.

Parallel cell tabs use equivalent terminal-to-hole distances to maintain uniform current distribution across the battery assembly.