Secondary Cells TRIZ Cases

A vented through-hole with a detachable filler relieves battery pack gas pressure while restricting liquid ingress that can trigger swelling and shorts.

A low c/a crystal ratio and controlled calcination help NCM positive electrode material limit oxygen release while maintaining cycle retention.

Pre-assembled cell connectors and voltage taps simplify battery pack wiring, support automation, and prevent polarity and assembly errors.

A two-frame welded housing replaces plastic cartridges to improve battery module rigidity, heat dissipation, energy density, and assembly speed.

Elastic legs support a flat cooling pipe against battery modules to stabilize thermal contact resistance across temperature changes.

A solder link between the safety vent and sub-plate melts under short-circuit heat, interrupting current before pressure and overheating escalate.

A multi-metal lithium cathode oxide and aqueous electrolyte suppress water electrolysis, widening the stable voltage range and improving charge-storage durability.

A Li2S coating on NMC811 cathodes limits oxygen release and electrolyte breakdown while improving structural stability and cycling.

A two-layer cathode coating separates small and large olivine phosphate particles to avoid gelation, suppress overdischarge, and slow fading.

A curable non-silicone TIM uses graphite and smaller conductive particles to dissipate heat while lowering density, spreading, and abrasiveness.

Shared ejecta barriers and outward venting isolate pouch-cell failure gases, limiting thermal runaway spread in eVTOL battery packs.

Strategic gaps and thin composite barriers isolate cylindrical cell groups, containing thermal runaway while limiting battery pack weight.

A water-free PTFE binder powder with specific gravity at or below 2.200 cuts battery gas generation while strengthening electrodes.

A tray layout that raises the cell projection-to-tray area ratio helps cylindrical battery packs fit more cells while improving heat dissipation.

Ceramic insulating films replace polyimide to let battery heating films run above 110°C with better heat conduction and stable cell mounting.

Long-chain phosphate ester fluids improve immersion cooling by combining heat dissipation, low flammability, pumpability, and electrical insulation.

Thermal inserts and liquid cooling channels pull heat from central battery cells to keep module temperatures uniform and extend cell life.

A slidable quick-connect sleeve with an O-ring seal absorbs fluid port misalignment, enabling fast assembly of rigid tubing without leaks.

LVPF particles coat LNMO cathodes to block HF-driven surface damage while preserving fast charging and improving cycle life.

A two-piece expanded manifold links U-flow tube paths to cut pressure loss and fluid leakage in EV battery cooling.

Thin barrier walls and tuned gaps around cylindrical cells help contain thermal runaway while limiting battery pack weight.

A raised terminal feature shields the metal joining area during beam welding, reducing thermal damage while preserving strength and conductivity.

Ether and sulfonamide electrolyte blends stabilize SEI on silicon electrodes, improving cycle life, safety, and high-voltage compatibility.

Parallel battery and cabin heating paths cut circuit resistance, maintain coolant flow, and raise vehicle battery temperature more effectively.

Oxygen-bound Al, B, Zn, or Zr stabilizes silicon-oxide anode slurry pH and viscosity, reducing gas generation and improving battery life.

Lone-pair functionalized carbon nanotubes coordinate with dissolved Mn2+ in cathodes, limiting manganese loss and improving battery cycle life.

A built-in cooling sheet directly contacts the electrode assembly, improving cell heat dissipation for faster charging and lower adhesive use.

Partitioned housing and venting passages discharge explosive gas outward to block flame and heat transfer between adjacent cell assemblies.

A discharge guide member channels hot gas and flame out of the battery module to protect adjacent modules while preserving housing sealing.

Heterocyclic cyclic amine or amide additives trap fluoride ions in Li-Ion electrolytes, limiting electrode corrosion and active material breakdown.

A guide member between cell tabs and the bus bar raises gas flow resistance, blocks heat paths, and vents thermal runaway gas outside.

A tuned spacer elasticity range lets battery packs absorb cell swelling while maintaining stable pressing force and suppressing resistance growth.