Secondary Cells TRIZ Cases

Sequential suppressant stages target battery fire zones to contain thermal runaway spread while avoiding full-container discharge.

Direct cell-to-heat-sink contact shortens the thermal path, improving cooling uniformity, pack safety, and space utilization.

A central cooling plate and conductive layers hold cylindrical cells on both sides while reducing retention-part complexity in battery modules.

Substantially water-free glycol antifreezes cool batteries and fuel cells while limiting conductivity, short-circuit risk, and hydrogen evolution.

Endothermic thermochemical material placed within or beside cell stacks absorbs heat above 50°C to limit thermal runaway spread.

A thinner electrode-connecting section saves cell space while a thicker terminal section preserves conduction reliability and energy density.

Sulfur-vinylsilane polymerization forms branched organosilane polymers that curb polysulfides, improve conductivity, and extend sulfur battery life.

Specific electrolyte additives form stable electrode interphases, improving Li-ion cycling, high-C-rate discharge, and capacity retention at high voltage.

Direct strain sensing on the battery cell or case improves detection of thermal expansion and contraction for more reliable pack monitoring.

A heat conductive member between adjacent electrode assemblies channels heat to the base plate, improving compact battery cooling and safety.

A segmented holder lets cylindrical cells protrude on both sides to save pack space, support cooling, and resist vibration in heavy-duty vehicles.

Adjusting slurry pH to 2-3 with aluminum hydroxide improves AlPO4 filterability and speeds high-purity lithium salt solution production.

Tuned manifold channels balance thermal fluid across flexible conduits, improving cell pack temperature control with lower pressure drop and weight.

A methyl acetate and dimethyl sulfone electrolyte balances high- and low-temperature cycling by limiting viscosity rise and side reactions.

A welded base plate, tube, and ring connector helps flexible battery cooling sheets maintain thermal contact and long-term fluidtightness.

Discrete separator welds create gas escape paths in a layered battery, reducing lithium metal precipitation and short-circuit risk.

Parallel stamping singulates solid-state battery cells faster than laser dicing or sawing while minimizing edge burrs and capital cost.

A closed end loop in friction stir welding encloses the probe hole, strengthening battery pack weld terminals against water leakage.

Cutting the uncoated electrode substrate into a terminal removes tabs and current collectors, lowering resistance, heat, and assembly complexity.

A paraffin wax and colloidal heat absorber limits phase-change leakage while absorbing cell heat to reduce contamination and extend battery pack life.

A two-layer cross beam with fastening grooves avoids weld bead interference and keeps cell laminates accurately positioned in cell-to-pack assembly.

A thin sensing bar replaces a traditional bus bar for voltage measurement, cutting battery assembly mass while preserving conductivity.

A thin silicon-based second layer on a carbon-rich anode boosts fast charging while suppressing expansion, lithium plating, and surface degradation.

Fire-resistant laminated walls and pressure-triggered venting cut aircraft battery enclosure weight while containing thermal runaway gases.

A dual-layer battery module cover bends inward during a thermal event to limit heat spread to adjacent cells and preserve cover integrity.

A PEC-based gel polymer electrolyte widens the electrochemical stability window, enabling high-voltage Li-ion cycling with fewer unwanted reactions.

Non-uniform separators create faster and slower cooling paths, improving outlet-side cell cooling and battery pack heat uniformity.

An elastic plate integrated with battery module end plates absorbs cell swelling and impact, cutting compression pads, cost, and assembly time.

Pulsating heat pipes move heat from battery cells to an end cooling member, cutting cell temperature differences and thermal runaway risk.

Protrusions between side-plate air channels and locking members keep the connection board attached under vibration and impact.

Notched flow channels guide electrolyte from the injection hole across the electrode assembly to improve humidity uniformity and cell operation.

A flexible circuit board links busbars to a rigid board so battery cells can be monitored for both temperature and voltage at once.

A low-nickel Na-ion cathode uses Fe/Mn composition control, doping, and sintering to cut residual alkali while keeping capacity and stability.

Non-uniform separator distribution varies channel area to speed outlet coolant flow and improve battery pack cooling uniformity.

Guide grooves linked to through-holes route adhesive along cell sides, easing battery cell seating while preserving rigid, cooling fill.

A fence member on the bottom plate contains thermally conductive resin, improving end-cell heat dissipation and reducing module temperature differences.

A bracket-and-gasket sealing member blocks coolant leakage at the hose joint, keeping water out of the battery pack and preventing shorts.

An aerogel inner layer and solvent-blocking outer layer keep aluminum battery cases from melting and limit thermal propagation during runaway.

An internal heat exchanger superheats refrigerant after battery evaporation, improving cooling uniformity and compressor protection.

Fasteners routed through battery cell stacks cut structural bulk while improving monitoring access, thermal management, and pack energy density.

Incoming wind is routed through a rear-fender duct and discharge holes to cool a rear-mounted battery without adding bulky cooling hardware.

Adding vanadium oxide to a LiFePO4 cathode improves low-temperature discharge and high-rate capacity retention without sacrificing cycle life.

A protruding main plate center and two-stage pressing reduce battery module case sagging, improving assembly stability and pack reliability.

Adding over-stoichiometric lithium metastabilizes disordered rock salt cathodes to boost redox activity, capacity, and rate performance.

A meltable cell base releases coolant into the cell space during overheating, combining cooling and fire suppression in a compact battery pack.

Alternating concave and straight plastic heat-sink surfaces improve cooling of cylindrical battery cells while cutting weight and material cost.

A non-aqueous electrolyte salt system stabilizes the magnesium interface, resists impurities, and supports reversible deposition with lower overpotential.

A cooler with separate cooling and pressure channels detects underbody contact severity in battery packs while avoiding added impact sensors.