Small-Sized Cells Cases/Jackets TRIZ Cases

A stepped cap plate with inclined connecting regions keeps weld heights consistent, resists pressure deformation, and supports gas release.

A two-part pouch exterior separates cup depth from film sealing, reducing cracks and avoiding exterior discard after degassing.

A wound solid-electrolyte electrode assembly uses resilient polymer-metal substrates to improve battery safety and structural stability.

A hollow core support stiffens the jellyroll core and directs failure gas to the vent, reducing side rupture and ignition risk.

Friction-fit contact elements and fasteners join busbars without welding, enabling complex profiles and broader material choice in battery modules.

A linear ester electrolyte in a cylindrical cell boosts ion transport and pressure distribution to improve fast charge performance and reliability.

A conductive core left in the winding space prevents separator dislocation, short circuits, and electrode deformation in wound battery cells.

Radial, wave-patterned weld groups organize current paths in cylindrical battery tabs to cut current loss and improve over-current capacity.

A narrowed partition wall section lets adjacent battery stacks sit closer while protecting external terminals from vibration damage and short circuits.

Engagement portions pre-align the cap and case through an interference fit, eliminating tack-welding while improving welding precision and throughput.

A lower-rigidity bending portion enables smoother pole assembly riveting, reducing insulator cracking and deformation in battery cells.

Temperature-responsive barrier coatings switch from heat-spreading to insulating during thermal runaway, helping protect adjacent battery cells.

Recessed inner surfaces in a rectangular battery case cut insertion resistance and improve electrode assembly alignment for faster assembly.

A protruding terminal plate and thermal-fusion bond disperse pressure, prevent short circuits, and create a vent path in ultra-small batteries.

An inner-wall insulating layer separates the battery case from electrolyte, reducing corrosion breakdown, short circuits, and fire risk.

A break-inducing collector board opens a gas path in cylindrical cells, relieving internal pressure while maintaining electrical connection.

An insulated terminal weld layout shields the conduction path from foreign objects while enabling lower-cost solid-state battery terminal joining.

A single-layer insulating coating on the battery housing improves coverage uniformity and resists breakdown better than insulating blue films.

A 3 µm oxygen-block coating on the cover plate and lead suppresses oxidation and electrolyte leakage during continuous charging.

A phosphorus-containing nickel plating layer protects the battery cover plate vent area from electrolyte corrosion while preserving pressure release.

Varying tab counts across stacked positive and negative electrodes adjusts battery output while reducing heat during repeated charge-discharge cycles.

An electrolyte-swollen member buffers impact inside a button cell, helping keep the cans joined and protecting the wound electrode assembly.

Asymmetric terminal spacing lets formation probes contact posts directly, cutting secondary positioning, cycle time, and assembly errors.

A riveted interference-fit seal closes battery injection holes without welded sealing nails, reducing process complexity and electrolyte volatilization.

A two-part insulation piece shields the tab from both end wall and sidewall, reducing short-circuit risk without wasting cell space.

A circumferential thin can section localizes deformation under axial load, protecting the electrode assembly from sidewall damage.

A channel full electrode lug and explosion-proof line create directional gas discharge to improve cylindrical battery safety during thermal runaway.

A doped high-Ni lithium transition metal oxide limits electrolyte side reactions and self-heating while preserving cathode structure.

Segmented negative tabs and reinforcement plates keep the hollow core open for gas discharge while limiting tab projection and buckling.

Asymmetric current collector plate coupling areas improve lithium-ion kinetic balance, cut resistance and heat, and support rapid charging.

A dispersed low-melting metal in the electrode lead cuts current at heat while preserving impact resistance and eliminating a separate fuse.

Channel full electrode lugs and an explosion-proof line create directional gas release during thermal runaway in high-energy cylindrical batteries.

Tape-like insulated fusing sections on current collector bridges improve fuse positioning, block reconnection, and support high-output battery cells.

A narrowed current collector bridge fuses under overcurrent to disconnect the cell quickly and reduce ignition risk in high-current use.

An adhesive carbon edge layer replaces anode tabs in cylindrical Li-S cells while protective coatings limit polysulfide shuttle and lithium erosion.

A tape placed beside the electrode tab absorbs expansion stress at the uncoated portion, limiting cracks, resistance rise, and battery safety risk.

Minimized collector welds and a weak breaking portion cut internal resistance while enabling high-current fusing in a battery cell.

Asymmetric battery lid openings and a cleavage impression vent gas non-uniformly, reducing projectile pop-out during abnormal conditions.

A two-electrode-body case uses aligned external and intermediate terminals to cut cell gaps, lower resistance, and support compact battery assembly.

An inclined safety cover section suppresses unintended current interruption and reconduction in cylindrical battery safety valves.

Multiple hinges let a battery degassing vent open around module obstructions, releasing pressure without wire damage or blocked discharge paths.

Bent uncoated substrate sections avoid center pin and case interference while preserving low-resistance current collection in wound battery electrodes.

Hinged notch segments let a secondary battery degassing vent open under pressure while staying attached to the case for safer gas discharge.

A through-gap insulation member tucks and supports bent tabs to stop insertion into the electrode assembly and reduce short-circuit risk.

Tape placed beside the tab reinforces the uncoated electrode region, easing expansion stress to suppress cracks and resistance rise.

A layered absorber and barrier at the cell housing joint contains leaked electrolyte and helps prevent short circuits and fire.

A bent lower-can rim, beading part, and rupture-notch vent collect gas, prevent can separation, and block current under excess pressure.

A dual-seal through-hole structure limits electrolyte leakage during formation while preserving hermeticity, gas relief, and replenishment.

A pressure sensor between the electrode assembly and housing tracks swelling pressure to prevent core collapse and internal short circuits.

A thin-wall housing and integrated cap assembly free more cavity space for electrolyte while maintaining sealing in compact button batteries.

A lithium imide salt, formula-based additive, and defined can volume curb resistance rise and extend cycle life at high temperatures.

Internal fluid channels cool large-format battery cells through a hollow center tube, removing core heat that limits fast charging.

Direct welding of current collecting plates to uncoated jelly-roll portions limits movement, lowers resistance, and improves thermal stability.

Monolithic single-layer interconnects simplify battery cell series and parallel connections, cutting assembly complexity and specialized tooling.