Secondary Cells TRIZ Cases

A cut insulating sheet and resin seal member block water-driven short paths, preserving dielectric strength between the electrode assembly and package.

Heat dissipation members between stacked battery cells conduct heat to the module case, limiting thermal propagation and improving module safety.

Two independently made cooling members linked by gaps simplify large battery module plate production while improving coolant flow and heat exchange.

A thiophene-based electrolyte additive complexes dissolved manganese ions, protects the SEI film, and improves LMFP battery cycle life.

A nitrile-based binder and electrolyte pair stabilizes cathode slurry, cuts rebound and cycling expansion, and improves low-temperature lithium-ion uptake.

Parallel cooling modules vary channel flow across the plate to limit resistance, keep coolant temperature uniform, and prevent battery hot spots.

Opposed liquid-cooling plates on both battery pack sides improve heat uniformity and speed heat transfer by removing external cover barriers.

A metal-ceramic safety layer on the negative electrode raises lithium nucleation barriers, reducing plating and thermal runaway during fast low-temperature charging.

Integrated air and gas exhaust passages in the battery cover improve cooling, rigidity, and impact protection without separate ducts.

Pulse laser cutting with higher frequency in exposed substrate areas reduces sputter fallout and active layer peeling in battery electrodes.

Titanium solid-solved in a layered Li-Ni-Mn cathode suppresses oxygen release, preserving high capacity with better thermal stability.

A thin-film liquid container ruptures near an overheated battery cell, spraying coolant to absorb heat and limit thermal runaway spread.

Al or Ga doping with evaporation and oxygen heat treatment helps Ni-rich cathode materials maintain stoichiometry and cycling stability.

Protruding side face members fill laminate-sheet joint gaps in a hexahedral battery package, improving structural reliability and package integrity.

Slots through chassis fins create cross-flow paths that reduce stagnant air under horizontal mounting and improve convective cooling.

A lithium-cobalt cathode with tuned binder and hollow carbon black balances higher energy density with lower electric resistance.

Integrated inlet and outlet structures on a blocking portion reduce stress concentration, simplify cooling plate assembly, and improve sealing.

A two-layer binder structure limits migration during high-temperature drying, improving collector adhesion, flexibility, and ion resistance.

Embedding bus bars in the insulated lid brings them into direct thermal contact with a cooler, cutting thermal resistance in battery packs.

A meltable seal and pressurized elastic coolant chamber rapidly flood ignited cells, improving cooling even when the battery pack is inclined.

A polyanionic surface coating protects layered sodium cathodes from humidity while preserving discharge capacity, cycle life, and energy density.

A metal-plastic cooling tray uses variable turbulators to improve battery module heat transfer, temperature uniformity, and pressure drop.

A thermally conductive member at the tab end draws heat from the cell body, reducing temperature differences and extending battery life.

Controlled photoinitiator loading enables UV crosslinking that raises separator breakage temperature without increasing surface resistance.

Direct cell-to-cell contact replaces foam buffers, raising battery module energy density while maintaining pressure and protecting sealing portions.

Integrated frame slots create a protected fire-extinguishing channel that simplifies battery module assembly and improves pack-wide fire response.

Spaced crossbeams, sub-crossbeams, and thermal layers raise battery pack energy density while improving cooling, assembly, and swelling control.

Cut-line venting in an insulated battery module cover releases runaway gas while limiting flame spread to adjacent cells.

Stacked cooling and heating members plus an exhaust channel keep battery cells in range while discharging hot gas to limit pressure and heat diffusion.

A base-plate drain hole and outer plate discharge leaked battery-pack coolant while blocking contamination and reducing short-circuit risk.

Alternating cooling members and vented spacers improve cell heat transfer while directing pouch-cell gases during thermal propagation.

Refractory blocking parts between adjacent cell blocks delay heat and flame transfer, helping battery packs prevent chain reactions.

Porous carriers loaded with lithium or sodium compounds replenish ions lost in early cycles, improving first-cycle efficiency and cycle life.

Dual-site doping stabilizes sodium layered oxide cathodes by suppressing layer sliding and phase transitions, improving cycle life.

A magnetic adsorbent coating on the separator captures heavy metal ions and helps suppress dendrites, improving battery safety and cycle life.

Controlled pH and ammonia synthesis forms stacked sheet-like precursor particles that limit cracking and improve high-nickel cathode cycling.

A movable spreading part expands the seal inside a battery heat sink connection, cutting space, weight, and assembly complexity.

Phosphorus-tuned low-crystalline vanadium sulfide raises initial capacity while improving mid-cycle coulombic efficiency and sulfur stability.

Direct insulating liquid cooling improves battery module heat removal while a flow spacer and bus bar frame protect sensing lines and sensors.

Collective fastening and a housing-formed heat sink improve battery cell cooling, simplify assembly, and reduce overheating risk.

A socket-block backplane and sliding bus bar let battery components be hot-swapped, cutting module replacement waste and maintenance cost.

A three-particle lithium composite oxide mix improves low-SOC output while limiting discharge capacity loss and DC resistance.

A through-hole current collector and pressure-deforming plate enable fast overcharge disconnection while maintaining battery sealability.

Balancing large and small LFP particle fractions cuts impedance while preserving compacted density and conductivity in lithium-ion cathodes.

Side and bottom cooling plates create independent coolant paths to improve battery heat dissipation in tight pack layouts.

Separate weld zones and support-plate through-holes reduce busbar footprint, improve lead and sensing-terminal welding, and preserve gas discharge.

A one-piece tray and external fluid channel plate improve battery module heat exchange while cutting assembly steps and infiltration risk.

Nano-scale TiO2 doping and spray pyrolysis suppress early charge phase changes in sodium-ion cathodes, extending battery life.

Ca doping acts as a pillar in P2 sodium cathodes, limiting Na layer collapse during desorption to improve cycle life and capacity.

Insulation tape over battery pack busbars blocks contact and metallic debris during thermal runaway while preserving cell pressure relief.

A removable side pulls out the energy units for maintenance while sealed housing, cooling lines, and potting improve robustness and heat control.

An olefin-glycidyl ester toughening agent helps PPS harmonica tubes extrude smoothly and resist pressure cracking in battery cooling plates.

Stacked conductors with insulated layers and tab coupling improve battery cell robustness, heat handling, and service access.

A two-component battery pack potting composition controls curing exotherm while delivering structural strength and easier cell disassembly.

Dual-size voids inside Si primary particles buffer expansion stress, reducing charge-discharge swelling while preserving battery capacity.

A sodium trifluoromethanesulfonate solvent system improves low-temperature ionic conductivity, cycling, and coulombic efficiency down to -30°C.

A mixed Na4Fe3(PO4)2P2O7 and Na2FeP2O7 cathode with carbon coating improves low-voltage discharge capacity while preserving energy density.

High-ionic-potential cations stabilize layered sodium cathodes during Na deintercalation, improving initial coulombic efficiency and cycling.

Overlapping insulating protrusions on both sides of the electrode tab spread stress and help prevent cracks in the electrode substrate.

A dual-layer coated high-Ni LNCMO cathode stabilizes crystal structure, suppresses cation mixing, and preserves battery capacity and lifetime.

A flat bottom guard plate uses a separate connecting assembly to avoid suspension, improving battery box fixation, weight, and corrosion resistance.

An Li-O-P/C interlayer between LLZO and FeOCl-LiCl suppresses interface reactions, lowering resistance and improving solid-state battery conductivity.

Dual organic and inorganic particles create ion-flow pores and a heat-activated adhesive film that delays thermal propagation in secondary batteries.

Staged venting with first and second pressure relief mechanisms releases cell pressure earlier during thermal runaway, improving reliability.

Blending NFPP with a controlled NFPO fraction lifts low-voltage discharge capacity while preserving sodium-ion cathode stability.

A bimodal positive-electrode particle mix fills voids between larger particles to raise compacted density and energy density in sodium-ion batteries.

Fluorinated diacyl acetamide solvents stabilize the lithium metal SEI, curb electrolyte loss and dendrites, and widen battery temperature range.

Precise Na/Fe ratio control and spray-drying improve particle sphericity, suppress impurity phases, and raise compacted density in sodium-ion cathodes.

Multi-element doping in a layered-oxide sodium-ion cathode improves specific capacity, water stability, and coating performance.

Heat pipes coupled to a liquid-cooling plate improve cooling in tight spaces and help equalize temperature across multiple heating units.

A relaxed tab geometry and controlled electrode thickness help battery cells absorb charging expansion without tab tearing, improving reliability.

A composite battery cell partition uses an inner heat-control layer and outer casing to resist high-temperature deformation and limit damage spread.

Coolant channels, fixed frames, and cooling spacers improve heat removal, cell fixing, and impact resistance in dense battery assemblies.

Dielectric liquid immersion cooling regulates battery temperature during fast charging while sensing fluid pollution to prevent thermal runaway.

A recessed end cap creates avoidance space for an outward-folding vent, improving battery cell pressure relief during thermal runaway.

A bagged hydrogel layer between battery cells absorbs heat early, adds flame shielding, and cushions cell expansion to limit thermal runaway.

A pyridyl electrolyte additive forms a protective anode layer and stabilizes cathode metals to curb side reactions and extend Li-ion cycling.

Alternating steel cover members expand to open a gas path, reduce vent blockage, and limit heat propagation between battery cells.

Integrated busbar injection holes let filler flow between battery cells during assembly, simplifying pack structure and cutting manufacturing time.

Integrated enclosure plates and protected cooling pipes let battery packs stack directly into modules, cutting extra frames and assembly steps.

A gas-evolving interrupt layer delaminates at excess voltage to cut battery current and reduce overcharge-driven thermal runaway.

A conductive sheet between the busbar and lead region improves heat transfer from electrode leads, helping battery modules stay within target temperatures.

Corner cushions and integrated binding bars absorb cell tolerance and thermal expansion, enabling tighter battery stacking with cooling and stability.

A two-layer positive electrode pairs a fire-resistant inner layer with a high-capacity outer layer to limit thermal runaway without sacrificing capacity.

A recessed, compressible buffer sheet lets the insulator follow battery expansion while lowering reaction force and module weight.

Thicker cooling plates paired with slimmer alignment stoppers keep prismatic cell rows aligned while preserving cooling and terminal access.

Inclined recess and bridge surfaces in a pouch battery case cut bat-ears and void space, improving energy density and wrinkle resistance.

Recessed portions let a deformable buffer sheet absorb cell expansion with less reaction force, enabling smaller, lighter battery modules.

An insulating heat-conducting layer creates a direct thermal path from the electrode terminal to the heat exchange plate, reducing heat buildup.

Hot-pressed flexible members form sealed flow channels that improve battery cooling fit, cut weight, and avoid added sealants.

A low-rigidity cooler plate uses elastic force-exerting portions to conform to the lower case and improve thermal contact for battery module cooling.

Cooling plates between and within battery cell planes improve heat dissipation and fluid distribution in compact traction battery packs.

Ti and Nb segregation at cathode grain boundaries suppresses oxygen release, preserving high nickel capacity with stronger thermal stability.

A slide-compressed seal ring and clip simplify tube mounting while maintaining reliable sealing and mechanical grip.

A lattice of cross-fastened supports and heat-triggered patches suppresses battery cell fires at ignition while avoiding complex pack hardware.

A honeycomb coolant path and heating film improve battery pack cooling and low-temperature heating while limiting liquid contact that shortens cell life.

A through hole, outer plate, and filter drain leaked cooling medium outside the battery pack case to prevent cell short circuits and debris ingress.

Selective ALD forms thicker films on metal oxide sites and thinner lithium-site coatings to protect electrodes without blocking Li-ion transport.

Direct thermal-liquid contact cools prismatic cells and bus bars together, improving temperature uniformity, energy density, and safety.

Embedded sidewall cooling channels remove battery heat without separate heatsinks, improving energy density and coolant flow between modules.

An inter-module fuse between adjacent power storage modules interrupts fault current and contains heat to prevent short-circuit spread.

Universal inlet and outlet manifolds adapt battery cooling to different module layouts, cutting parts, inventory, and assembly time.

Graphene deposited on cathode active particles boosts compacted density, cuts polarization, and enables faster charging without harming stability.

Internal coolant channels formed by extruded ribs, aligned ports, and end plugs cut space use and pressure loss without sacrificing rigidity.

Blending coarse and fine LiMPO4 active materials improves packing density and lithium diffusion while preserving discharge capacity at low temperatures.

A doped conductive oxide and water-soluble polymer salt binder improve cathode safety, adhesion, and high-temperature cycle performance.

Merged inlet and outlet flow paths in upper and lower heat sinks cool battery modules while reducing assembly complexity, size, and leak risk.

Nonpolar-solvent wet milling cuts solvent burden, prevents powder adhesion and heat buildup, and yields reproducible sulfide solid electrolytes.

Voltage-driven color change flags battery cells outside preset limits, enabling fast visual screening during assembly, storage, and recycling.

Copolymer-forming electrolyte additives with SO2 or CO2 build a tougher, compact SEI film to improve battery cycle stability and storage life.

A bendable phase-change breaker creates an air gap during thermal events, slowing heat spread between battery cells without thick insulation.

Embedded organic particle protrusions improve separator bonding while preserving porosity, helping thinner secondary batteries keep cycling and safety.

A charger reads battery type and thermistor temperature to set safe current, avoiding overcharge damage and cold-charging risk.

A copolymer dispersant and oxazoline polymer improve carbon dispersion and electrical contact in waterborne anode slurries for faster battery charge-discharge.

Through grooves in the battery pole and electrical adapter mount heat transfer tubes to lower pole and cell temperatures with simple thermal management.

Dual cooling plates with spiral fluid channels cool both sides of a battery cell, improving thermal uniformity, density, and modular assembly.

A shell wall cavity places the temperature sensor closer to the electrode assembly for faster, more stable heat detection and lower thermal runaway risk.

Mixing large and small cathode and anode particles improves LFP battery rate performance, cycle life, and energy efficiency.

A wall-outlet charger uses magnetic mounting and wireless power transfer to eliminate charging cables while holding phones upright.

An integrated thermal and protective assembly mounted on one battery-cell side simplifies packaging while shielding pressure-relief emissions.

Integrated resin separators generate and retain heat between stacked battery cells, improving low-temperature warming efficiency with fewer parts.

A flow-adjusting valve shifts coolant between bus bar and bottom coolers to suppress terminal hot spots while maintaining whole-cell cooling.

Segmented thermally conductive and foaming adhesives support pouch cell stacks, prevent overflow, and improve CTP pack cooling and assembly.

Over-molded tube ends, mechanical tank joints, and a sealing gasket replace brazing to prevent coolant leaks and reduce cooler weight.

A detachable upper cover and sealed maintenance opening let battery cells be repaired without losing case sealing or contamination protection.

Dispersed β-cristobalite and quartz reinforce a lithium silicate matrix so silicon anodes crack less and retain capacity over cycling.

Controlled silicon composite particle sizing and layered coating improve Li-ion battery cycle life, rate capability, and swelling resistance.

Shared refrigerant circuits and valve-controlled modes cool the battery and heat-generating devices while reducing power draw and range loss.

Specific M1/M2 ionic radii ratios in nickel cathodes improve lithium-ion movement and cut resistance in lithium-ion secondary batteries.

Controlled particle-layer gloss variation helps laminated battery separators improve heat resistance, rate performance, and bonding uniformity.

Heating a multilayer adhesive above 60°C softens its thermoplastic primer, enabling EV battery pack detachment without solvents or damage.

A lithium composite oxide with a selected lanthanide or low d-electron element suppresses cathode particle cracking during charge-discharge cycling.

A porous sodiophilic shell constrains cathode particle expansion while easing sodium deintercalation to improve sodium-ion battery cycle life and safety.

A conductive filament around a pouch cell breaks on swelling, enabling circuit detection and controlled current interruption to protect the pack.

Atomized phosphate coating improves nickel-rich cathode uniformity, lowers impedance, and strengthens cycling stability in lithium-ion batteries.

Broken separator edges cushion battery cell expansion, preventing heat-shrink film rupture and improving stacked power supply durability.

A lithium niobate-coated spinel cathode with a salt-free electrolyte limits surface degradation and space-charge resistance to extend cycle life.

A thermally coupled heat conductive plate moves BDU heat outside the housing, improving cooling in compact battery packs without active cooling.

A tuned carbon BET ratio and sulfur-based electrolyte additive improve low-temperature initial power and power retention in polyanion cathodes.

A two-layer single-sided positive electrode balances binder content to prevent curling, separator shrinkage, and short-circuit risk.

Adhesive blocking portions separate thermally conductive and foaming adhesive supports to stabilize pouch-cell stacks and improve heat dissipation.

Bent coolant channels routed through battery corner regions improve heat exchange, cell temperature uniformity, and structural reliability.

Staggered pressure relief mechanisms keep hot vent emissions from striking adjacent cells, limiting thermal runaway spread in battery packs.

A charger-fed control and LED supply cuts standby current in battery packs, avoiding repeated charge-discharge cycling that shortens cell life.

Copper doping in a lithium-rich manganese-rich cathode balances high discharge capacity with better capacity retention and initial efficiency.

Separate cooling channels for cells and connecting sheets improve battery pack heat dissipation and reduce overheating that shortens service life.

A core-sheath fiber and hot-melt powder sheet resists cell-expansion compression, limits powder falling, and preserves battery-pack heat insulation.

Metal wave springs maintain uniform pressure in an all-solid cell stack, improving impact resistance, stability, and energy density.