Secondary Cells TRIZ Cases

A whistle hole in the battery pack pressure relief valve turns vented hot gas into an audible thermal runaway warning when the BMS is damaged.

A fiber-based solvent-free electrode coating removes drying and solvent recovery steps while preserving porosity and electrolyte uptake.

A cooling plate divides the pack into upper and lower spaces, supporting layered modules to improve space use without added frame weight.

Randomly distributed functional monomers let Li-ion electrode binders improve current-collector adhesion while keeping slurry viscosity low.

Heat pipes and a mechanical locking interface cool swappable battery modules through a shared rack circuit, reducing maintenance effort and leak risk.

A spaced tab bracket guides and supports pouch-cell electrodes during welding to block heat transfer and improve cell yield.

Heat insulation supports fix battery cooling assemblies while limiting case heat transfer, improving temperature uniformity and preventing condensation.

Identical cell cartridges with diagonal coupling members simplify battery module assembly, cut cartridge variety, and improve housing fixation.

A compressible enclosure with inorganic particles and fibers helps battery partitions hold shape at high temperature while slowing heat transfer to adjacent cells.

Homogeneous dry mixing of silicon, carbon active material, and carbon additive reduces aggregation and supports stable high-capacity electrode films.

A VC or FEC plus ODTO electrolyte cuts additive count while lowering impedance and extending NMC-graphite battery cycle life.

Stacked conductive foils with internal bends relieve battery expansion force while enabling automated busbar production and lower material cost.

A layered insulator and graphite fins limit cell-to-cell heat transfer while spreading heat and accommodating battery cell swelling.

A dual-SBR binder approach limits binder penetration into graphite voids and helps silicon-graphite anodes retain capacity over charge-discharge cycles.

Combining end and side plates into one battery submodule structure maintains expansion-load stiffness while cutting parts and assembly time.

Modular short and long busbars improve traction battery cell connections while supporting scalable pack layouts and finger-safe welding access.

A coated doped NCM cathode and Si-N/Si-O electrolyte additive form a low-impedance film that stabilizes high-voltage cycling and energy density.

Direct fluid channels contact battery cells and busbars to solve uneven indirect cooling and improve thermal management consistency.

A dual-material battery cooling plate adds structural support, reducing extra pack reinforcements, weight, cost, and CO2 emissions.

Layered silicon-oxygen and silicon-carbon anode regions curb expansion, improving cycle life, fast charging, and structural stability.

By shaping AC battery heating current, this case turns heating noise into selected audible tones that improve user experience and convey battery status.

Integrated insulation and sealing protect a pouch-cell heating module from corrosion while enabling low-temperature charging and discharging.

Controlled nanoscale pores in polycrystalline lithium nickel oxide particles reduce cracking and stress buildup, improving cycle life and safety.

A layered NCM cathode, inorganic additive, and dinitrile electrolyte strengthen the interface film to improve cycle life and reduce residual gas.

A PVDF-based gel polymer electrolyte with lithium salt additives suppresses iron elution and gas generation in high-temperature LFP cells.

An asymmetric cell tab layout lengthens the positive tab to cut DCR, speed electron transfer, and improve overcurrent capacity for fast charging.

Crossed separators in a shared battery housing keep adjacent electrode core sets apart, cutting structural weight while improving short-circuit safety.

A pop-up needle venting guide releases hot gas early to relieve pressure and delay thermal runaway spread between battery cells.

Thin ALD or CVD metal oxide interphases stabilize lithium-ion electrodes, reducing SEI degradation, capacity loss, and dendrite growth.

Perpendicular connecting plates restrain battery cells and the carrying assembly to improve pack rigidity, safety, and cooling.

A creep-tuned end separator absorbs battery aging expansion, lowering end-plate reaction force and preserving module integrity.

Partitioned cooling passages in an upper heat sink shorten the heat path from stacked cells, improving temperature uniformity and module safety.

Softer seal material placed at terminal corner stress points absorbs assembly force, reducing cracks while preserving battery-cell insulation and sealing.

Battery cells mount directly on liquid-cooling side surfaces to remove module frames, raise cabin space use, and improve heat dissipation.

A polymer-amine additive improves nanosized cathode dispersion, lowers slurry viscosity, and helps thick lithium-ion electrodes resist cracking.

A two-material positive electrode composition steepens the voltage-SOC curve to improve self-discharge screening accuracy in secondary batteries.

Using FEC and DTYP in a fluorinated electrolyte builds stable SEI and CEI films that curb high-voltage side reactions at elevated temperature.

A reinforcement member inside the pressure relief hole protects the vent from deformation, improving battery cell stability and service life.

Binder particles sized at 0.1-0.8 μm strengthen silicon anodes, suppress expansion, and preserve energy density and cycle life.

A porous polymer separator improves electrolyte absorption and retention to reduce squeeze-out, polarization, and cycle-life loss in battery cells.

Rotatable support frames ease busbar-to-lead alignment, while a crossing venting passage improves battery pack heat release and safety.

A three-phase lithium-rich cathode forms super-domains and continuous phase transition to curb voltage drop and improve high-voltage cycling.

A dual-layer cathode pairs a conductive layered base with a microporous olivine top layer to cut resistance and slow failure during fast charging.

Directly mounting cells on a liquid-cooling structure frees cabin space, raises cell count, and simplifies assembly while maintaining heat dissipation.

Separator pore structure, thickness, and interface tuning align mixed-chemistry cell kinetics to improve battery module rate and power output.

A non-overlapping breathable film and fixing member cut end-cover space while preserving gas exhaust, sealing, and battery cell compactness.

Spacer-formed vent channels isolate adjacent battery cells and route thermal runaway gases outward to limit heat and particle spread.

Recessed end plates create controlled cell expansion paths that steer vented gas and flames away from adjacent cells to limit heat propagation.

Breakable vents, insulation, and abrasion-resistant plates guide runaway gases to limit pressure buildup and thermal spread between cells.

Stepped adhesive flow channels in an insulating frame improve battery cell fixation and electrical isolation within the housing frame.

A spacer with an insulating core and conductive paths spreads cell hot spots to peripheral areas, limiting thermal runaway between adjacent cells.

Through-hole fastening members apply uniform stack pressure while cutting member volume to improve battery module energy density.

Flat graphite aggregates with controlled compressibility enable denser Li-ion anodes while limiting cracks, side reactions, and efficiency loss.

A mixed polycrystalline-polyhedral cathode localizes spinel particles at grain boundaries to raise capacity and cycle life without high cost.

A planar carrier between lithium-ion pouch cells simplifies welding and wiring, enabling lighter, modular vehicle battery assembly at lower cost.

Controlled sintering temperature and rare-gas atmosphere reduce iron phosphide in lithium iron phosphate while preserving compaction density and battery performance.

A heat dissipation layer between the bus bar and sensing cover conducts heat to the cooling plate, lowering whole-module temperature deviation.

Layered battery protection with dual acceleration sensors and a compressible middle layer improves impact damage detection and assessment.

Edge immersion cooling on battery cell minor surfaces plus thermal barriers limits convective and conductive heat spread in traction packs.

A carboxyl-functional polymer improves conductive slurry dispersion and adhesion, reducing particle agglomeration and internal resistance in secondary batteries.

A foam cell separator uses thicker edge regions to fit rounded prismatic cells, improving sealing, thermal insulation, and fire protection.

A cell-row layout places pressure relief and electrical connection portions on different sides to block conductive discharge and avoid insulation failure.

A pouch spacer with phase change material expands during cell overheating, increasing cell spacing to block heat propagation and limit thermal runaway.

Guide plates confine the liquid-swellable body so swelling opens a drain path without blocking flow, reducing corrosion and leakage risk.

Cross-linked modifier molecules reinforce a nonwoven battery separator while improving electrolyte wettability, ion transport, and puncture resistance.

Controlled CNT dispersion with carboxymethyl cellulose and homogenization improves electrode layer uniformity and battery cycle life.

Integrated refrigerant channels in the mounting plate cool battery modules while cutting parts, assembly cost, and leak risk during impacts.

Flow path and tank plates cool battery cell bottom and side surfaces together, reducing temperature deviation and local deterioration.

Three parallel inlets with individual check valves merge into one outlet to prevent backflow while keeping cooling-system pressure drop low.

A self-contained base unit transfers power between interchangeable batteries inside the sterile field, avoiding cords, trips, and contamination.

Uneven pouch wall thickness preserves indentation strength while enlarging cavity space for more electrode material and electrolyte.

An integrated housing and heat sink cool stacked battery cells more uniformly, improving space use and reducing assembly complexity.

An extended insulation adhesive and folded sealing structure disperse stress at battery conductive plates to reduce fatigue fracture risk.

Blending low-fracture low-Co and high-fracture higher-Co cathode materials cuts cobalt cost while preserving battery load characteristics.

Rotated fiber bundle layers in a Bouligand protection member absorb impact and help prevent electrode damage, rupture, and ignition.

Curable adhesive bonds lithium-ion cells to frames and collector plates, cutting fasteners while maintaining stable electrical connection and monitoring.

A foil-covered cooling channel between pouch cells improves liquid cooling uniformity and pressure compensation during fast charging and discharging.

A door-mounted liquid cooling unit creates separate battery and power-module loops, cutting cabinet footprint while easing installation and service.

Doped nickel-rich cathode particles limit lattice shrinkage and swelling to prevent cracking and improve high-temperature lithium-ion cycling.

Diode-based limiting circuits block reverse noise currents in battery pack communication loops, preserving signal integrity and accurate data exchange.

Elastic pressing pieces with elastomer moldings keep stacked prismatic battery cells aligned despite tolerances, expansion, vibration, and impact.

A supported pressure relief mechanism opens at a set angle to direct hot battery emissions toward thermal management for safer discharge.

Combined M1 and M2 doping helps positive electrode crystals resist Ni-mixing and lower battery resistance in lithium-ion cells.

Embedding fluid conduits into a plastic battery housing wall cuts assembly effort and improves durable thermal control for EV batteries.

Cooling channels between or beside stacked cells remove heat while separate air gaps absorb swelling to protect battery module integrity.

Plug-in contact adapters shift battery terminal contact from axial to radial, speeding pack assembly while preserving conductivity and reversibility.

A layered or patterned blend of LMR and NMX cathode materials cuts gas formation while raising Li-ion cell energy and power density.

Aligned cell vents, degassing openings, and a failing support plate relieve pressure fast while blocking thermal propagation between cells.

A radial plug-contact adapter and bent busbar replace welding or gluing, cutting assembly time while improving tolerance compensation.

Perpendicular connecting plates create a stable mounting plane for battery cells, improving pack rigidity and reducing failures from uneven adhesive bonding.

A snap-fit bracket with an overmolded aluminum insert simplifies battery pack assembly while adding structural support and precise coolant manifold alignment.

Conductive coatings and a stable 3D tunnel ε-VOPO4 cathode help lithium-ion cells sustain high voltage while limiting electrolyte decomposition.

A two-chamber equalization tank stores aging-related excess coolant vertically, preserving ventilation and a compact battery cooling footprint.

A supported cell cover and side member layout stabilizes stacked battery cells while improving volume ratio and energy density.

Dual-tier guide features create separate coolant paths that improve battery cell cooling while preserving support and limiting pressure drop.

A common housing combines fluid and air equalization tanks with cooling components to cut hydraulic interfaces, space, and maintenance.

Spray-dried and calcined TiO2 secondary particles balance mesopore transport and tap density to raise anode capacity with low first-cycle loss.

HVAC CO2 refrigerant is redirected through spray nozzles onto battery cells during thermal runaway, extending response time without extra fire systems.