Small-Sized Cells Cases/Jackets TRIZ Cases

A cell core kept within 5 mm of the battery surface improves heat dissipation, delaying critical temperature rise during high-current discharge.

An asymmetric electrode contact layout boosts Li-ion cell energy density and heat conduction while limiting weight for fast charging.

A partial finishing tape and two-layer substrate layout prevent negative composite exposure during shrinkage, reducing short-circuit risk.

Localized rough regions at the cover-body interface increase friction to resist thermal expansion, improve air tightness, and preserve cell energy density.

A fixing member and overlapping flanges redirect sealing reaction force away from the housing, preserving seal integrity and limiting deformation.

Integrated threaded features and vent passages locate battery cells precisely, enable reversible fastening, and keep potting resin out of vent channels.

By shifting welding pores into a thicker shell plate, this battery cell design reduces cracking in thinner sections and improves reliability.

An integrated gasket replaces separate insulating plates to prevent short circuits, stop electrolyte leakage, and free more cell capacity.

Stacked rectangular battery packs inside a narrow column improve replacement access, airflow, and independent operation during maintenance.

Convex-concave interlocks anchor cylindrical power storage devices in holders, improving vibration stability, alignment, and gas discharge.

An inner case protrusion constrains jelly-roll expansion to reduce outermost anode stress, preventing cracks and deformation.

A weakened busbar section aligned with module vent holes breaks under thermal runaway to isolate adjacent battery modules and limit fire spread.

A cylindrical cell uses greater upper electrode flattening than lower flattening to ease insertion and limit wound-body movement under vibration.

Surface Al concentration control and a protective film improve thermal stability while limiting capacity fade, gas generation, and swelling.

An integrated terminal fixing structure expands the current path to cut inner resistance, heat generation, and wasted battery pack space.

A bottom recess sealed by a low-expansion auxiliary device opens under fault pressure to vent gas and prevent sidewall bursting.

A crown-structured cell housing forms stable sandwich battery modules with protected connections, lower weight, and symmetrical heat dissipation.

Controlled aluminum film thickness and grain size enable deeper pouch molding, shorter bat ears, higher energy density, and better appearance.

High-melting sealing sub-bodies keep the battery cap and housing insulated during maximum discharge, preventing short-circuit risk.

Visible locking and connecting pieces let engineers verify electrode contact while the insulated lid structure helps prevent battery module short circuits.

An annular thin section in the external terminal conductor melts above 1000 A to limit internal battery heating while preserving assembly reliability.

A segmented cap plate with a central insulated non-polar region shortens heat flow distance and improves battery cell stability.

A bidirectional fastening structure lets the battery module connector be inserted from either direction, cutting redesign time, cost, and assembly complexity.

Opening-aligned uncoated parts and spaced collector plates improve current collection, lower resistance, and simplify cylindrical cell assembly.

Sizing the pressure relief mechanism to 0.5%-5% of the end cover balances timely venting, exhaust flow, and structural strength.

A guide piece in the bent tab opens the electrolyte path into the wound body, improving active material infiltration and battery performance.

A coplanar vent and outer rim reduce welding warpage in cylindrical battery seals, stabilizing CID actuation and vent pressure.

Mechanically coupled dual grooves in a battery cell end plate relax trigger-pressure tolerances while preserving burst stability and strength.

A copper core with a nickel outer layer enables stronger welding to an aluminum connection sheet while lowering resistance and corrosion risk.

Radial holes in a wound electrode assembly improve electrolyte penetration and distribution in larger cells while helping reduce short-circuit risk.

Cover plates shield battery unit top and front surfaces to block flame spread and insulate terminals in dense battery packs.

A compressible polyorganosiloxane foam barrier with ceramic particles and fire retardant limits heat transfer and flame spread between battery cells.

A recessed cap assembly contains weld beads during side welding, preserving flat cell surfaces for reliable module alignment and contact.

A heat-triggered ignitable membrane opens before critical overpressure, venting electrolyte gas to lower thermal runaway risk in battery modules.

Different roughness zones on the negative electrode core prevent slurry sagging while preserving mixture adhesion and coating accuracy.

A stepped connection terminal creates separate pole and external weld areas, improving lithium-ion battery welding reliability and efficiency.

A graded negative electrode coating uses a low-expansion, high-bonding winding tip to limit delamination, deformation, and current collector cracks.

A three-part lid with an insulating middle and adapter rim bridges cup tolerances, easing welding while improving button battery sealing.

A thin welded vent extension keeps the welding bead away from the insulation washer, preventing cap-to-case short circuits if the gasket fails.

Vacuum suction removes residual electrolyte from battery cells before molding, preventing contamination, dimensional defects, and production stoppages.

A recessed cap-side weld contains bead protrusion, preserving battery cell flatness, sealing reliability, and module alignment.

Integrated fluid channels in the cell housing improve heat transfer, reducing uneven battery temperatures and supporting power, lifespan, and safety.

By removing the wrapping edge and lowering cap height, this case extends the buckle-edge flat section for more stable battery-cell electrical connection.

A disc cover with an extension insulates the terminal at the can through-hole, reducing electrode contact risk and improving cell stability.

Direct lid-to-current-collector welding removes intermediate contacts, cutting battery cell weight, part count, and assembly complexity.

Anti-corrosion material at the can-cap coupling and gasket blocks air and electrolyte exposure, helping cylindrical batteries resist rust and last longer.

By combining insulation and conduction in one rail type socket, this battery module cuts parts, material use, and assembly time.

A deformable busbar main section absorbs battery expansion, reducing terminal tensile stress while enabling safer breakoff during thermal runaway.

Pressure-driven deformation in an adhesive-filled inner tube opens a vent gap to release pouch-cell gas while limiting electrolyte leakage.