Small-Sized Cells Cases/Jackets TRIZ Cases

Dual collector plates and radial through-holes route battery leads with less stress, improving arrangement flexibility and breakage resistance.

Insulating layers and anaerobic adhesive let a double-seamed battery can maintain sealing, electrical isolation, and pressure resistance with thinner metal.

A welded cover-holder-disk interrupt structure reduces vibration-driven fatigue fractures and electrolyte leakage in cylindrical batteries.

Placing opposite-polarity tabs on one side saves cell space, while an insulator blocks tab deformation contact and short circuits.

Partially cut and folded substrate tabs reduce electrode stress and cracking while preserving compact, reliable tab welding in cylindrical cells.

An inward offset bar shortens the gap to the electrode assembly, enabling horizontal degassing-seal folding and a smaller battery footprint.

Controlled Fe-Ni surface diffusion improves corrosion resistance and die sliding while limiting grain coarsening in Al-killed steel sheets.

Pre-stamped conductor patterns on an insulating layer simplify battery cell welding, cutting busbar cost, thickness, and assembly time.

Long cells over 600 mm enable a beamless battery module that improves pack space use, energy density, and heat dissipation.

A three-wall flared battery cell case eases electrode assembly insertion, cuts corner interference, and improves energy density.

A cover protrusion passing through a sealing-member hole creates direct housing contact, avoiding weld debris, wall cracking, and electrolyte leakage.

Direct housing-mounted long cells remove transverse beams and screws, improving pack volume use, assembly simplicity, and energy density.

Directly mounting long cells in the housing removes beams and screws, increasing battery pack space use, energy density, and assembly simplicity.

An angled three-groove shell vent lets stacked battery cells open obliquely, increasing pressure relief area and reducing blockage risk.

Variable tab cutting width and 100%-150% depth guide folding in cylindrical cells, reducing overlap damage while preserving electrical connection.

Opposed pressure relief grooves create a controlled weak portion that ruptures earlier, lowering detonation pressure in battery cells.

A three-part arc battery housing uses a middle frame and two cover plates to simplify forming, cut cost, and preserve strength and cell space.

Adjusted uncoated tab cutting depth and width reduce overlap during winding, preventing substrate damage and preserving electrical connectivity.

Flat negative busbars project into cell-case grooves to simplify cylindrical battery module assembly and maintain low-resistance, reliable joints.

Metal-to-metal welded foil packaging replaces thicker pouch seals, improving hermeticity and volumetric efficiency in sub-1 mm cells.

A split cover plate and connecting sheet layout frees cell space for higher capacity while preserving overcurrent capability and sealing.

Peripheral wall grooves crack near the shell end to vent pressure faster in stacked battery cells and reduce delayed relief hazards.

Bent aluminum and copper tab leads are directly welded for series-parallel cell joining, cutting bus bar space, weight, and assembly time.

A tapered top can guides jellyroll insertion while strengthening the crimp seal and reducing excess material in cylindrical secondary cells.

An internal rod and insulated closure plate route current inside a cylindrical battery cell, avoiding a live housing and widening material choice.

A 4-7 mm core through hole lowers inner winding stress, limits delamination, and improves internal cooling in cylindrical battery cells.

Separating venting, cooling, and bus connections across different battery cell walls redirects emissions and helps prevent short circuits.

A 4-7 mm core through hole eases initial winding stress, limits electrode delamination, and improves cooling in cylindrical cells.

Segmented insulating holders secure conductive parts under vibration while a cleavable vent valve rapidly releases internal battery gas.

Overlapping separator layers and adhesive tape protect jelly-roll electrode ends from bending cracks and internal shorts during cycling.

A conductive outer connector offsets differential electrode emissions in button batteries, reducing EMI on nearby wearable electronics.

A tailored weld starting path evaporates residual electrolyte during cap sealing, reducing weld defects and improving battery safety.

Placing both cylindrical battery terminals on the bottom simplifies internal connections, supports terminal welding, and improves energy density.

Dual terminal roughness lets cylindrical cells support smooth laser welding and stronger wire bonding on the same connection surface.

A recessed bent leading end in the wound electrode relieves internal stress, prevents buckling, and lowers short-circuit risk in compact cells.

A discontinuous spiral nanosecond laser weld widens terminal joining while limiting heat damage, gasket deformation, and electrolyte leakage.

Parallel-series conductive units balance cell current for quick charging while cutting busbar thickness, wiring complexity, and module space use.

Welding current collectors to electrode uncoated portions simplifies cylindrical battery connections while reducing resistance, heat, and short-circuit risk.

Cut-position information on the battery case guides disassembly away from the electrode body to avoid damage and short circuits.

A seal wrapped around the copper-aluminum terminal interface blocks electrolyte penetration while reducing battery terminal weight and cost.

Edge-only resin zones raise separator heat resistance while keeping central electrolyte flow open to improve cylindrical battery cycle life.

A water detection member in the battery unit senses ingress through the opening and helps protect inhaler electronics from deterioration.

An inward-bent battery can edge lets the top cap deform and open a gas path under excess pressure without fragmenting.

Controlled heat treatment builds a ferrite-based multiphase steel sheet that raises impact strength while limiting forming cracks.

An extended bus bar path, spring pressurization, and laser welding cut resistance heat and protect battery module connections.

A multi-depth safety vent notch controls battery breaking pressure while reducing premature cracking, deformation, and electrolyte leakage.

Bent uncoated electrode tabs create stacked welding surfaces that cut resistance, protect the separator, and keep electrolyte paths open.