Cylindrical Casing Cells/Battery TRIZ Cases

A bitter polymer coating with colorant helps deter coin cell swallowing and visibly stains saliva to speed ingestion detection.

Aversive polymer coatings on 2-50% of coin cell terminals deter ingestion and signal saliva contact without disrupting conductivity.

An LLZO shell on NMC cathode particles blocks electrolyte reactions while preserving lithium-ion conductivity for better efficiency and cycle life.

Directly welding current collector edges to formed housing features lowers button-cell resistance and improves high-current handling and heat dissipation.

Direct welding of current collector edges to the button cell housing cuts internal resistance, improves heat dissipation, and supports large-current use.

A stacked electrode layout replaces jelly-roll winding to raise button cell capacity, lower resistance, and prevent opposite-polarity tab shorts.

An insulated bonding layer joins the cap plate and case without welding heat, protecting the separator and preventing button cell short circuits.

Bent tab and busbar portions locked by integrated ribs keep battery connections stable when narrow cell spacing limits bosses and screws.

Holder ribs create dedicated spaces that secure tabs and busbars in dense battery modules where narrow cell gaps limit bosses or fasteners.

Natural graphite and controlled propylene carbonate help match electrode decay rates, improving high-voltage LiCoO2 battery cycling.

A magnetic pickup with an FPC voltage contact stabilizes cylindrical cell measurement and sorting, reducing voltage deviation in production.

Elastic buffer protrusions on a battery insulator absorb impact and vibration, protecting the electrode assembly while maintaining insulation.

Balancing positive and negative electrode porosity with surface element control reduces polarization and extends high-voltage Li-ion cycle life.

A separated weld layout and insulating bonding layer keep the case and terminal plate isolated, preventing weld-induced short circuits in button cells.

Relocating the weld between the sidewall and bottom plate keeps heat away from the bonding layer and helps prevent case-to-terminal short circuits.

Internal oxygen defects and Na/Ni/Mn doping curb oxygen release and gas generation while preserving high-voltage capacity and Li-ion kinetics.

A side-welded cap plate and overlapping bonding layer prevent cap-to-terminal short circuits while simplifying button cell welding.

A higher-BET silicon-carbon anode with graphite and nanotubes improves adhesion and lithium-ion transport for fast charging and longer life.

Side welding shifts the cap-to-case joint away from the bonding layer, preventing short circuits, delamination, and welding interference.

An open-cell sodium yttrium fluoride gel boosts ion transport and charge storage while avoiding lithium scarcity in energy storage.

A recessed top cover nests the anode piece to preserve button battery capacity while reducing thickness and overall volume.

Pre-bending the foil end region keeps cell connecting pieces leaning toward the winding core, improving winding stability and structure.

Particle size and tapped-density matching let olivine material surround layered cathode particles, suppressing short-circuit heat and thermal runaway.

A guide channel in the insulating member exposes sealing failure in battery cell end covers, reducing false sealing and leakage risk.

Laser beam welding joins the lead plate to the cell base with fewer particles, better heat flow, and improved electrical conductivity.

A burst disk, PTC, and turbulence promoters vent runaway gases, limit current, and reduce heat spread between cylindrical cells.

Segmented adapter sheets and pins secure button battery terminals, improving connection stability and preventing adapter breakage.

Thermal fusion bonding replaces rivets in a button cell top plate, cutting assembly thickness while maintaining sealing, insulation, and coupling strength.

A three-layer insulated cover removes film placement steps in button battery packaging while improving sealing and short-circuit protection.

A nested sealing region around the electrode terminal blocks electrolyte ingress, reducing conduction and corrosion risk in battery cells.

Flat-bottom groove intersections in a sealed battery vent reduce stress concentration, improving impact resistance and reliable pressure release.

Concave terminal features filled with insulation disperse vibration torque, protecting the sealing plate junction and improving battery reliability.

Concave terminal features filled with an insulating member disperse vibration torque and protect battery terminal-sealing plate junctions.

An intermediary metal sheet lets button cell tabs weld without current penetrating the pole shell, reducing leakage, bulging, and resistance.

Cross-linked vent insulation keeps a cylindrical battery cap assembly electrically isolated at high temperature and helps prevent re-energization.

Magnetic members hold battery cells in place without welding, reducing assembly time and allowing damaged cells to be replaced quickly.

A magnet pickup and flexible FPC voltage sensor enable stable cylindrical cell measurement during transfer, reducing sorting deviation.

Supports segment cell gaps so less filling material is needed while preserving heat dissipation, cell fixation, and faster battery pack manufacturing.

An asymmetric vented top plate and protection ring free button-cell space, improve gas release, and reduce laser welding damage.

A sealed sleeve, clamp, and pressure chamber improve electrolyte uptake in battery housings while preventing leakage during filling.

Segmented laser irradiation followed by annealing restores surface nickel concentration in welded joints, preventing electrolyte leakage from corrosion.

A battery electrode tab uses a convex arc coupling portion to distribute stress and prevent peeling off under external impact.