Secondary Cells TRIZ Cases

Thermocompression bonding joins a thermosetting insulating sheet to a metal member, improving positioning accuracy and avoiding tape contamination.

Internal pressure unfolds a casing-integrated reversal structure to short Li-Ion cell terminals before thermal runaway during overcharge.

A piezoelectric layer inside the battery separator senses stack pressure and creates vibrations to break dendrites before shorts form.

A perfluorooctyl bromide cooling composition improves battery and power electronics cooling while delaying thermal runaway and fire spread.

A reinforced fiber or coating layer boosts separator piercing resistance, inhibits dendrite penetration, and lowers battery short-circuit risk.

Through-pack fasteners compress stacked battery cells and conduct heat, improving swelling control, monitoring, and pack energy density.

Multiple concave cavities route coolant in series to reduce cross-flow, improve battery heat uniformity, and lower thermal runaway risk.

Separated cell groups with integrated firewalls confine thermal runaway, support targeted module replacement, and maintain power delivery.

Holders constrain fluid cushion expansion between stacked cells, protecting tab leads and endplates while preserving battery module energy density.

Fluorinated cyclic and chain carbonates help lithium-ion batteries retain discharge capacity in subfreezing and high-temperature operation.

A metal-oxide coating on lithium iron oxide additive reduces positive-electrode slurry gelation while improving initial efficiency, capacity, and cycle life.

An integrated cooling and pressure-relief plate cuts battery module assembly time while resisting thermal shock during cell venting.

Vacuum forming replaces injection molding for CCS isolation plates, shortening mold cycles, improving yield, and lowering battery assembly cost.

A 3D heat dissipation structure links battery cells to the pack lid to disperse heat and vent gases, reducing thermal runaway risk.

A UV-cured PVdF-HFP semi-interpenetrating electrolyte cuts room-temperature impedance while improving ionic conductivity, rate capability, and cycle stability.

A meltable adhesive film seals a battery cell through-hole in normal use, then opens a compact pressure relief channel when heated.

A sealed shell holder with integrated channels and fixing elements improves battery cooling uniformity, contact area, and pack stability.

Controlled void distribution in nickel composite hydroxide precursor particles improves lithium uniformity and battery cycle stability under heat.

Adhesive bonding fixes pouch cells directly to the pack casing, improving CTP assembly stability, impact protection, heat dissipation, and insulation.

An elastic tab limiting sheet keeps battery tabs spaced and constrained to prevent reverse insertion and internal short circuits.

Male-female battery module couplings replace welding to enable non-destructive disassembly, secure cascading, and better cooling.

Selectable battery taps feed an SCP heater at the right voltage, enabling reliable fuse cutoff with a simpler protection circuit.

Thermally conductive adhesive and reinforced side plates help pouch-cell CTP packs improve impact stability, assembly, and heat dissipation.

Gradient-doped and oxide-coated NCM cathode particles improve high-temperature cycling and storage while reducing battery gas generation.

Organic-acid co-precipitation controls manganese-rich precursor size and morphology, improving cathode energy retention and cycle life.

A fixing rod inserted through module fixing tubes replaces multiple long bolts, cutting battery pack assembly time, weight, and complexity.

A 3DOM-MOF composite electrolyte uses polymer and limited liquid phases to improve Li+ conduction while reducing flammability and leakage.

Insulating covers let EV battery conductor rails extend outside the housing for easier assembly while preventing hazardous exposure.

A conducting polymer network encapsulates phosphorus anodes to improve conductivity, absorb volume expansion, and slow battery capacity decay.

A through-hole and evacuated sealed space let inspectors measure inner pressure after reduced-pressure sealing without compromising battery integrity.

A multilayer separator combines inorganic heat resistance with adhesive bonding to prevent shrinkage and lithium salt precipitation at high temperatures.

Rounded quasi-spherical spinel grains reduce stress concentration, cracking, and corrosion to extend lithium-ion battery life.

Controlled surface roughness in a particle-coated laminated battery separator improves electrode bonding, rate characteristics, and heat resistance.

Thermal blocking members between stacked cells block heat and redirect runaway gases to prevent adjacent-cell ignition and short circuits.

Controlled high-molecular-weight polyolefin segments improve separator thickness resilience and compression resistance for safer lithium-ion batteries.

A heat-pipe terminal pulls heat from battery cell tab connections through fluid phase change, helping keep module cells within a safe working temperature.

Daisy-chain battery pack connections cut connector count, simplify routing and assembly, and support scalable EV range and packaging.

Controlling polyolefin chain segments and stretching conditions raises separator elastic recovery while maintaining pore structure and strength.

A viscoelastic sealing tape balances high creep and shear strength to absorb electrode thickness change and protect the solid electrolyte.

Parallel channels and a fluid distribution member keep coolant temperature more uniform across battery cells, improving heat transfer consistency.

A layered positive electrode material with an a/b ratio of 0.8 or more suppresses nickel ion migration and improves lithium-ion battery capacity retention.

Controlled pores and tap density in negative electrode particles improve low-temperature discharge rate without sacrificing compacted density.

Oriented high-aspect graphite and void-filling graphite stabilize Si anodes by preserving ion paths and limiting particle isolation during cycling.

Integrated sealing around battery cell openings improves coolant sealing reliability while simplifying module production and assembly.

A thicker Mn-containing inner cathode layer and tuned fluorinated electrolyte improve Li-ion cycling, high-temperature storage, and impedance.

Inserted reinforcement members in end plate extension spaces raise pack rigidity and help prevent battery cell swelling.

A dual active material cathode broadens low-voltage rate tolerance to improve fast charging and cycle life without sacrificing energy density.

A metal frame with a non-conductive coating cuts battery housing weight while adding electrical insulation, thermal insulation, and corrosion protection.

By fixing the endplate, extension member, and tray together, this case frees more pack volume for cells while maintaining protection.

Embedding electrical components in a ribbed battery pack sidewall cuts pack size while preserving support, waterproofing, and connection stability.

A passivation-film-forming cathode composition cuts high-temperature impedance rise and capacity fade in high-voltage lithium-ion batteries.

Wall portions and a baffle guide vented particles inside a battery pack, improving capture, rigidity, and compact packaging.

Controlling cylindrical cell diameter and integrated thermal members improves pack space use, energy density, and thermal management.

A manganese-rich inner phase and manganese-poor outer phase curb Mn dissolution while preserving cathode energy density and cycle stability.

Dip-coated, crosslinked DPVDF on polyolefin separators improves thermal stability, ion transport, and charge-discharge behavior in Li-ion cells.

Heat transfer members extending into a duct improve airflow cooling uniformity across electrochemical cells, reducing hot spots and aging.

Film-roll gap fillers bridge heat from cell modules to cooling systems while simplifying battery assembly and absorbing gap variation.

Integrated vent flow paths route thermal runaway gas from cell vents, trap particles, and preserve battery module support and impact protection.

A fluoride-based pre-lithiation layer releases lithium ions during formation to offset lithium loss and preserve Li-ion cell energy density.

Locating rings and bend fixing members constrain the wire harness, reducing stress and preventing battery cell scattering during transport and operation.

A vent-aligned plate and elastic hooking piece block flames, pressure, and debris to reduce secondary explosions in adjacent battery cells.

Direct coolant flow around slotted battery cells improves heat transfer, lowers thermal runaway risk, and extends cell life.

An elastic member and stretchable busbar buffer absorb cell swelling, preserving stable electrical connection and battery module life.

Thermal adhesive bridges densely packed cells to a conductive housing, improving heat transfer, insulation, and space use in lithium-ion modules.

A smaller sealing-member hole guides adhesive overflow between the top cover and conductive member to block electrolyte leakage.

A thin polyethylene-based separator with high tensile energy and a heat-resistant layer helps block piercing, short circuits, and thermal runaway.

Controlled open and closed porosity in silicon anode powder limits battery swelling and thick SEI while preserving first-cycle efficiency.

Dual-state chloride-ion sensing checks battery pack corrosion while also detecting sensor faults caused by air-cooled chloride exposure.

Models electrode diffusion as first-order transients to estimate surface lithium concentration in real time without high-order PDE complexity.

Segmented snap-in joint ends support a battery cooling pipe without choking flow, enabling heat exchange and melt-triggered fire suppression.

Higher-conductivity gap fillers at cell-stack edges move heat to the enclosure while adhesive supports the pack with lower cost and complexity.

A silane-treated thermally conductive silicone gel maintains filler-loaded heat transfer while improving fluidity, gap filling, and peelability.

Compressed preformed foam is inserted between adjacent battery cell tabs, then expands to fill gaps without curing and speed pack assembly.

Partially open segmented cell compartments direct coolant around closely packed cylindrical cells for more uniform cooling and heat exchange.

A snap-fit protective plate reinforces the battery box thermal management component, improving impact resistance, assembly speed, and cell safety.

A heat pipe, thermal pad, and interface plate actively manage accumulator temperature while reducing battery bulk, mass, and part count.

Thermal switches link auxiliary and primary heat sources to battery cells, reducing energy use while speeding EV battery temperature control.

A layered high-nickel cathode uses controlled particle aggregation and dry dispersion to improve output, initial efficiency, and cycle durability.

A high-boiling liquid forming aid replaces solvent slurry drying, avoiding sedimentation and residual solvent issues in battery electrodes.

Protruding cell separators link adjacent battery cells to active cooling, improving thermal uniformity while limiting thermal spread and leakage risk.

A solid powder mixture fills battery cell gaps to passively absorb and conduct heat, reducing cooling complexity and thermal runaway risk.

A circulating phosphate ester fluid enables immersion cooling with low flammability, high electrical resistivity, and pumpable viscosity.

Identical molded seals with a compensation groove maintain battery cell cooling tightness at high fluid flow while easing manufacturing.

Inert-gas heat treatment of Y/Sm-Li-Ca precursor mixtures improves halide production throughput while maintaining room-temperature ionic conductivity.

Tracks discharge-variable trends in a vehicle closing system energy source to detect impairments early and trigger a safety routine.

Layering large particles near the core and small particles at the surface cuts cracking, improves cycling, and lowers output resistance.

Hollow spacer sections and a low-conductivity insulation layer limit thermal deterioration while maintaining stable compressive load on secondary batteries.

A tuned spacer elasticity balances cell support and swelling absorption in battery packs, helping suppress expansion and maintain performance.

A controlled NCM c/a ratio and particle size improve cathode thermal stability while preserving cycle capacity in lithium-ion batteries.

Primary forming molds structure directly onto cooling channels, simplifying insulated battery thermal management and avoiding difficult tube joining.

A porous carbon interlayer with connected micro-, meso-, and macropores cuts lithium diffusion resistance and suppresses plating during fast charging.

Different cathode chemistry layers improve current-collector adhesion, high-rate discharge, and capacity retention in lithium-ion cells.

A shaped cell holder creates fluid paths around each battery cell, improving immersion cooling uniformity, safety, and module reliability.

Wrapped heat conduction elements around battery cooling tubing improve heat dissipation, even cell temperatures, and cooling circuit simplicity.

A pack-level binding mechanism compresses battery units to maintain electrolyte-electrode contact, limit swelling, and preserve output.

Alternating cooler trays and battery rows in immersion coolant improve heat removal for fast-cycling, high-density backup battery enclosures.

A SiCxNy shell around a silicon core improves conductivity, limits volume change, and stabilizes cycling in lithium-ion anodes.

UV crosslinking forms a 3D coating network on battery separators, raising breakage temperature and improving thermal safety at low cost.

Opposite-polarity cell placement and criss-cross links cut battery-pack magnetic fields while preserving compact series-parallel layouts.