Secondary Cells TRIZ Cases

Cooling fins that contact a conductive resin layer shorten the heat path, reduce cell-to-cell cooling deviation, and improve battery module thermal uniformity.

A movable charging member retracts into the housing to save space while enabling simultaneous charging through a compact three-in-one layout.

A pressed inner case keeps battery cells close to the heat sink, improving cooling while limiting heat sink deformation under refrigerant pressure.

A mixed single- and secondary-particle cathode lowers cobalt use while preserving battery output, cycle life, and high-temperature stability.

A mobile phone relays a temporary key by NFC so the correct vehicle is securely paired with the hydrogen pump, avoiding assignment mix-ups.

Direct flange-mounted cooling tubes remove bulky quick connectors, cutting battery module volume while improving heat dissipation and sealing.

Dual-case fastening and rib-stabilized thermal conduction improve battery module heat dissipation and vibration resistance.

Blending natural and artificial graphite with tuned crystallite size and XRD orientation improves lithium battery capacity and high-temperature life.

Optimized silicon-to-carbon particle size and sphericity ratios limit swelling and contact loss while preserving battery capacity and cycle life.

Insulated sidewall gas channels vent high-temperature battery gases without structural collapse, reducing heat buildup and explosion risk.

A mixed high- and low-aspect-ratio ceramic coating improves separator ion transport, thermal stability, and mechanical strength in Li-ion batteries.

Controlled recess width and separator permeability improve ion flow while limiting powder buildup, voltage drop, and short-circuit risk.

Fiber-reinforced covers with a honeycomb core absorb collision energy to protect EV batteries without adding heavy enclosure weight.

A sulfur-containing LiFSI electrolyte with propyl propionate stabilizes the CEI, lowers AC impedance, and improves drop and cycling performance.

Fluorine-free polymer particles dispersed in ceramic coating improve separator bonding consistency, stability, and heat resistance.

Flameproof sleeves and heat-dissipating tubular members cool battery cells while limiting heat spread that can trigger thermal runaway.

Oppositely bent electrode tabs and auxiliary tabs enable protrusion-free current collection, improving battery assembly, density, and heat safety.

A fiber-free thermoplastic bonding layer forms pressure-resistant cooling channels in a plastic battery housing while preventing coolant leakage.

Graded large and small cathode particles raise compaction density while carbon-coated fines preserve electron paths and lower charge-discharge impedance.

Parallel refrigerant flow in an integrated cooling plate cuts pressure loss, weight, and assembly complexity in expandable battery modules.

A cooling member with base and side flow paths separates cell stacks from the housing, improving replacement, expansion buffering, and cooling.

Separate coating of small and large cathode particles improves layer balance, reducing swelling and preserving cycle life in lithium secondary batteries.

A bimodal cathode particle mix controls interfacial resistance to cut irreversible capacity loss, lithium loss, and gas generation.

An organic cyanide separator coating stabilizes the positive electrode, reducing oxygen release and phase transition at high temperatures.

A polymer layer with a >4 V oxidation-window solvent blocks cathode-electrolyte contact, limiting side reactions during fast high-voltage charging.

Abnormal status is signaled through the power line by dropping output below device operating level, removing dedicated terminals and compatibility checks.

Controlling manganese content and cathode layer surface density helps limit Mn dissolution during high-temperature storage and preserve battery capacity.

An elastic support presses a conductive member against two conductors to prevent loose-bolt contact failure and maintain equipotential safety.

A HASE and AAM/AA/AN binder stabilizes high-active-material anode slurries, improving adhesion, reducing desorption, and lowering initial resistance.

AC-based impedance sensing detects battery detection-line faults and precursors without switch-induced voltage-drop errors or wait time.

Controlled SiMxCy particle distribution and carbon buffering help silicon anodes limit expansion, preserve structure, and improve cycle life.

A high-strength nickel-rich cathode plus an antifluorite oxide additive suppresses discharge-end degradation and improves cycle life.

An integrated gas reservoir between adjacent battery cells insulates heat and releases CO2 to delay thermal propagation and suppress fire.

Dry microwave heating converts argyrodite precursors without ball milling, solvent removal, or annealing while preserving phase purity.

A low-unsaturation polyol with dianhydrohexitol units boosts isocyanate reactivity while preserving foam strength, appearance, and transparency.

A dense-core, porous-shell cathode structure improves lithium-ion battery rate capability and high-temperature storage without sacrificing energy density.

Alternating heat conduction members route heat between power storage cells to limit adjacent heating and preserve safety valve integrity.

A vapor collection structure redirects electrolyte vapor during thermal runaway to preserve insulation and avoid sparking between the cell and metal plate.

A meltable fire-extinguishing pipe with metal knitting yarns helps immerse cells, limit heat transfer, and stabilize pipe alignment during thermal runaway.

Integrated superbeam subchannels and a thermal barrier interlayer improve EV battery pack cooling, support, and thermal runaway resistance.

A porous polymer separator with an inorganic particle coating preserves porosity under pressure, reducing resistance while maintaining strength.

Relocating the battery cell valve away from the electrode routes hot gas through cooling cavities to protect insulation and lower explosion risk.

Direct synthesis of an Fe-Mn lithium cathode with Fe2P and amorphous carbon improves conductivity and energy density while avoiding SOx and NOx.

Integrated insulating extensions and fire-extinguishing capsules block cell-to-cell heat transfer and help stop cascading ignition in battery modules.

A porous inorganic partition member retains heat resistance under compression to block heat transfer between stacked batteries.

A heat-absorbing member between the battery heat management part and protective member evens temperature, reducing noise and deformation.

Non-adjacent bus bars and a rear detour output path reduce cooling interference while improving battery pack output and packaging.

Blending two lithium transition metal oxides with tailored particle sizes and Ti-rich surfaces limits cracking and metal elution in high-Ni cathodes.

Specific plasticizers in the negative electrode slurry reduce drying cracks in thick, high-speed coatings while improving electrolyte infiltration.

A Li-Al-O coating protects oxide solid electrolyte powder during sintering, limiting lithium loss while enabling dense mother-powder-free bodies.

An MXene conductive layer between the current collector and active material boosts adhesion, peel strength, conductivity, and cycle stability.

Doped LMFP secondary particles with carbon-coated primary particles raise ionic and electronic conductivity to improve lithium-ion battery rate performance.

A convex-edged protection cover lets a battery module tightly couple the cell stack and frame without cell damage, while improving insulation.

A heat-activated duct membrane isolates adjacent battery assemblies to block flame and air flow while preserving cooling in normal operation.

A metal outer layer contacting the temperature control member improves heat dissipation and reduces cell-to-cell temperature deviation.

Integrated dielectric fluid spray and extraction cool battery cells during high-power charging, keeping temperatures within safe limits.

An elastic in-situ polymer network helps silicon negative electrodes absorb expansion, preserve conductive channels, and cut internal resistance.

A partitioned connector and staged flow paths vent gas from stacked batteries while reducing swirl, retention, and machining complexity.

Pressing members compress cell terrace portions to redirect hot venting gas and flames, limiting thermal runaway spread in dense battery modules.

Plastic connection parts on a metal heat-sink profile cut manufacturing cost while enabling fluid-tight channel routing and precise coolant flow.

Offset inlet and outlet placement with variable-section conduits improves cooling uniformity while reducing the housing footprint.

Integrated vertical and horizontal coolant rails in the pack wall cut external cooling losses while supporting compact battery module cooling.

A serpentine liquid heat exchanger with a contact heating element cools and warms battery cells quickly while simplifying pack thermal management.

A support member under the fluid collector shares battery cell load through the heat exchanger to prevent bending while preserving thermal management.

Resin potting secures cell terminals, fills injection-molding gaps, improves sealing, and extends electrochemical cell service life.

Identical sharable frames and heatsink guides simplify battery module stacking, cutting alignment defects, cost, and cooling loss.

Hollow support columns with adhesive-filled cavities improve cylindrical cell heat dissipation and retention strength in a battery module.

A porous inorganic partition member maintains heat resistance under battery expansion pressure to block heat transfer and limit thermal runaway.

Transparent connection sections enable automated laser welding of extruded plastic cooling profiles, cutting cost while maintaining reliable fluid flow.

An insulating bus bar case and spacer press the voltage detection line into contact while reducing electric shock risk during battery pack reconnection.

A pierceable soluble port cover keeps cooling plate channels clean during coolant tube connection while simplifying battery coolant assembly.

A protrusion-guided venting channel redirects gases and sparks to limit thermal runaway spread between battery modules.

A 3D phosphate additive forms a porous SEI with cavity channels, improving battery ion transport at high and low temperatures.

Two-stage calcination and metal-compound doping cut oxygen vacancies and Mn dissolution in lithium manganate cathodes for better cycling and storage.

Multi-element high-entropy doping in a Ni-rich cathode balances cycle stability and specific capacity by refining particles and stabilizing the lattice.

A raised cap above the electrode stack creates extra pouch space for gas release, higher capacity, crack prevention, and safer stacked cells.

By embedding a heater in a thermal conductor between batteries, this case improves heat transfer and temperature uniformity without added bulk.

A two-layer anode uses soft carbon near silicon and harder carbon above it to preserve conduction paths while improving energy density and output.

A pressure-triggered vent pocket and terminal positioning structure releases gas while suppressing adjacent-cell short circuits.

Selective phosphorus coating on large cathode particles suppresses side reactions while limiting internal resistance in secondary batteries.

A shared central heat sink with dual flow paths cools stacked battery modules, limiting thermal propagation and leakage points.

Controlled para-aramid fiber size and length help battery separators cut resistance while maintaining heat resistance and thermal runaway protection.

A dual-stage venting path routes thermal runaway emissions from battery cells out of the box, lowering internal pressure and casing damage risk.

A conductive filler and inter-cell cooling tube simplify battery pack assembly while improving heat removal, strength, and energy density.

Integrated ribs and communication ports create internal coolant paths without separate pipes, saving space and preserving heat sink rigidity.

A meltable venting portion and heat-resistant guide discharge flames and gas outward to stop thermal runaway re-entry in battery modules.

An auxiliary spray tank sustains extinguishing pressure after the main agent drops, helping battery modules avoid secondary fires and thermal runaway.

Controlled oxygen defect levels and protective coating help high-nickel cathodes raise energy density without sacrificing cycle life.

Injected silicone filler foams and cures into partition walls that block heat propagation in battery assemblies and delay thermal runaway.

A resin-impregnated multilayer enclosure uses an apertured core to contain battery vent byproducts and limit further cell activation.

Controlling cathode precursor grain size and XRD peak ratio improves lithium diffusion, structural stability, capacity, and cycle life.

A radial-core, lamellar-shell cathode precursor boosts compaction density while limiting crack-driven particle collapse during cycling.

A dual-tank fire suppression layout keeps extinguishing pressure and agent effectiveness stable in battery modules after the main tank is depleted.

Heat-shrink sleeves around pouch-cell leads and terrace areas close under flame exposure to block propagation and contain hot gases.

A valve-switched preheating branch bypasses the main battery loop when cell temperature spread rises, improving uniformity, power, and life.

Flammable gas sensing and cabinet ventilation prevent buildup in sealed battery enclosures, reducing ignition and explosion risk before fire starts.

A coolant channel placed between battery cells removes heat and uses elastic structure and gas pockets to accommodate swelling.