Small-Sized Cells Cases/Jackets TRIZ Cases

A groove opposite the joint localizes plastic deformation during ultrasonic joining, protecting battery terminal shape and connection reliability.

A depressed corner and controlled plastic flow stabilize sealing plate placement, preventing misalignment, rupture, and poor welding.

Multiple tab and housing coupling portions create parallel current paths, lowering resistance while improving weld strength against vibration and impact.

Segmented main and sub-hinges let a battery degassing structure open around nearby parts for reliable gas release without wire damage or short circuits.

Direct lid welding to contact or bridging sheet metal removes long conductors, improving current flow, heat dissipation, and cell space use.

A notched, hinged degassing vent opens under battery overpressure while staying attached to the case to discharge gas and avoid separation.

Dual pressure relief at both ends of a long battery cell improves thermal runaway venting timeliness and pressure balance.

An expandable center pin presses a jelly-roll lithium-sulfur electrode assembly to limit dendrite growth, side reactions, and short circuits.

Roughening the current collector plate surface lowers contact resistance in thinner secondary battery assemblies and helps preserve capacity.

Projection portions on the base member restrain terminal deformation during fastening, preserving stable and uniform battery post clamping.

Hidden adapter and tube connections inside the tray side beam reduce leakage and corrosion while keeping battery pack cooling flow consistent.

An adhesive conductive tab-to-cap joint with PTC particles avoids welding debris and raises resistance at high temperature to stop overcharge.

A position-limiting terminal shortens the tab connection path, reducing tab dislocation and pleating in large-capacity battery cells.

A segmented battery can with a welded thicker cover improves thickness uniformity while lowering the cost of thin-can manufacturing.

Stacked metal tab layers bonded with adhesive improve battery tab heat dissipation while easing welding and bending for high-current cells.

Bent and stacked cylindrical cell tabs create a tighter adapter weld, reducing poor connections and improving battery yield and reliability.

Arc-shaped stress relief at the electrode tab connection disperses corner stress and lowers tab cutting risk in battery cells.

Curved frame surfaces and elastic members absorb cell swelling and assembly tolerance while simplifying battery module assembly.

An insert-injected insulation member in ring-shaped cap plate grooves simplifies battery cap assembly, cuts cost, and frees inner volume for capacity.

A conductive piece placed near the end-cap weld uses residual heat to improve electrical connection and reduce micro-cracks that cause leakage.

Supplemental end current collectors and radially varied folded tabs cut tab space, improve charge transfer, and simplify battery cell assembly.

A radially symmetric current collector plate absorbs impact and vibration, protects welded battery tabs, and interrupts current during shorts.

Different active material layers on each side of the negative electrode balance stress, limiting silicon swelling and preserving battery capacity.

Dual-end tab sections and a controlled L2/L1 current path ratio cut battery resistance and heat in large cylindrical cells.

Segmented uncoated tabs and tight separator offset cut resistance, improve electrolyte wetting, and help prevent internal shorts in large cylindrical cells.

Balancing cell spacing and insulation coating thickness reduces short-circuit risk while preserving battery energy density and heat dissipation.

Radially spaced thermal conductive structures create parallel heat paths from the electrode tab to the cover plate, easing battery heat concentration.

A separate current collecting member links the tab and end cap to reduce welding microcracks, preserve airtightness, and improve cell safety.

A roll core increases winding radius in high-capacity battery cells, reducing electrode bending stress, deformation, and active material loss.

A rivet terminal and cap plate integrate both battery terminals in one cap assembly, improving sealing and stable electrical connection.

By moving the electrode terminal to the curved sidewall and removing crimped joints, this case frees more internal volume for stacked electrodes.

A chamfered terminal head forms a gap that reduces gasket compression damage, preserving insulation, hermeticity, and dimensional stability.

An eccentric tab opening and embedded metal sheet increase weldable thickness, enabling stable external laser welding with less short-circuit risk.

A weakened buffer zone absorbs impact deformation before it reaches the vent, reducing premature actuation and improving battery cell stability.

A thin insulation member covers the exposed uncoated winding edge to preserve insulation and vibration resistance while freeing space for higher cell capacity.

A cornered through-hole in the current collector promotes controlled tearing and smoother gas exhaust during battery thermal runaway.

A segmented gasket with flange and bridge parts improves sealing, insulation, and deformation resistance in cylindrical battery assembly.

Asymmetric electrode leads create dead space for a reinforcing pole, improving battery module strength without sacrificing packing efficiency.

A beaded can and press-fit current collector remove cap welding, reducing cylindrical battery assembly time, cost, and internal resistance.

A loop-shaped cap fracture feature and bridged current collector widen venting paths, reducing side wall rupture risk during thermal runaway.

Asymmetric electrode leads and a through-cell reinforcing pole improve pouch battery pack strength without sacrificing space efficiency.

Recessed and bent sealing portions contain gas, delay venting, and prevent electrical corrosion in pouch battery cells.

A low-modulus insulation layer on thin electrode tabs prevents tab crushing and short circuits while preserving battery cell energy density.

Internal connecting portions between battery modules stiffen the pack box, prevent bottom deflection, and support lighter vehicle-floor mounting.

A crimped rupture disk and separate external terminal preserve gas venting during welding, preventing sealing assembly failure.

A short bent crimp edge pressed into the gasket limits dead space and plastic deformation, helping cylindrical batteries keep sealing pressure.

Non-overlapping sidewalls with overlapping projecting regions protect the laminated cell while cutting dead space that lowers energy density.

Sidewall venting frees the cell base for cooling contact and tab welding, improving thermal uniformity, capacity, and resistance.