Secondary Cells TRIZ Cases

A recessed end cover nests the electrode terminal to cut protrusion, free internal cell space, and increase battery capacity.

A fluorinated core-shell polymer keeps conductive agents dispersed without added dispersants, improving slurry stability, filterability, and battery electrode quality.

A thermally conductive insulating layer moves heat from the cell coil to the housing while maintaining electrical isolation and more uniform cooling.

Offset preliminary electrode stacks anchor a side protective member to resist peeling while avoiding collector terminal interference.

N,S-doped porous carbon spheres support FeSe2 to limit capacity fading and structural damage in Li-ion battery anodes.

Protruding case extensions form grooves and local air gaps between stacked cells, improving heat dissipation while limiting swelling-related deformation.

A recessed groove in the battery terminal block secures the temperature sensor, reducing detachment risk and improving stable cell temperature detection.

A tungsten-containing rock salt surface layer and ionic liquid electrolyte help high-nickel cathodes resist phase change and gas generation at high temperature.

Rotating ultrasonic wedge bonding increases ribbon wire bond area and adherence, lowering resistance in battery module electrical contacts.

A co-solvated ether and fluoroether electrolyte reduces sodium-side reactions and gas generation while improving high-voltage tolerance and cycle life.

Open-pored foam inside a battery EV coolant reservoir suppresses sloshing, limits air ingress, and protects pumps during acceleration.

Variable cooling block positioning and U-shaped pipe sections improve heat transfer across changing battery cell and electrical component layouts.

A cyclic disulfonate additive forms protective electrode films to suppress oxidation side reactions, improving battery cycling stability and safety.

Specific (meth)acrylamide and (meth)acrylonitrile ratios in a water-soluble binder improve electrode strength, hardness, and capacity retention.

A core-shell lithium-replenishing particle design keeps cathode lithium distribution uniform, improving cycle life and reducing precipitation risk.

PCM-lined cooling channels melt and solidify to block hot coolant flow, containing thermal runaway and protecting downstream cells.

Deformable connecting ribs preserve coolant flow while creating swelling space, reducing stress concentration in battery cells.

Sensors trigger an actuator to open a semipermeable battery vent only when harmful gas exceeds a threshold, balancing pressure and blocking dust.

A thin heat-sensitive nozzle melts at 150-500°C to direct extinguishing agent at a venting cell and limit thermal runaway spread.

Shape-matched resin insertion holes fix magnetic detection units in place, simplifying power module assembly while improving compactness and shielding.

Controlled active surface area and mixed crystal domains help over-lithiated cathodes keep high capacity while improving high-voltage lifespan.

Segmented cylindrical cell modules with fixing grooves, serpentine cooling, and exhaust venting reduce assembly difficulty and simplify repair.

Temperature-triggered foam gap fillers expand during cell venting to cut free air volume and limit heat transfer to nearby battery pack structures.

A fluorinated cyclic carbonate and ether-bonded multi-nitrile electrolyte stabilizes the interface, limits swelling, and improves floating-charge retention.

Aerogel insulation between battery cells blocks heat transfer while conductive layers and frames dissipate heat to limit thermal runaway propagation.

Molded resin layers fuse upper and lower conductive plates into one battery cap assembly, cutting riveting steps, process time, and damage risk.

A thin heat-sensitive nozzle melts at lower temperatures to spray extinguishing agent at a venting cell and limit thermal runaway spread.

Grooved upper and lower cooling plates support battery cells directly, removing pack cross beams to simplify assembly and save space.

A pin element presses a sensor in the cell clearance to improve thermal contact and simplify temperature monitoring in large cylindrical packs.

A porous boiling layer enables more uniform battery cooling than water jackets while raising heat flux and reducing cooling system size.

Length-adjustable housing frames fit different cell assembly sizes, reducing battery module tooling cost while minimizing pack gaps.

A unitary coolant conduit removes disconnectable fluid joints, enabling modular cooling cores for electronics without leak risk.

Grooved upper and lower cooling plates hold battery cells while replacing serpentine tubes and cross beams to simplify assembly and improve pack space use.

A two-layer Si-based negative electrode balances ion conductivity and solid electrolyte content to improve cycle retention without sacrificing energy density.

Magnetic coupling and a Type-C plug-in interface let the battery and host separate by hand, simplifying recycling and extending product life.

A clip-integrated heat sink conducts heat from a battery case to the outside air, reducing pocket-induced throttling and sustaining performance.

Segmented modules with fixed slots, CCS, cooling plates, and exhaust channels simplify cylindrical cell assembly, repair, and heat dissipation.

Voids around silicon active material absorb charge-cycle expansion, suppress electrode cracking, and improve lithium-ion capacity retention.

Temperature-responsive flow diverters meter coolant through preformed channels to improve battery cell heat dissipation and pressure control.

Modular cylindrical cell housing, serpentine cooling, and exhaust channels simplify assembly, improve repairability, and help contain thermal runaway.

A clearance-fit pipe joint lets battery pack thermal assemblies absorb assembly tolerance, simplifying installation while improving connection reliability.

An insulated support separates the battery heat exchanger from load-bearing parts, improving cell temperature control and heat exchange efficiency.

Controlled void distribution in nickel hydroxide precursor particles lowers reaction resistance and improves battery capacity and cycle life.

Varying cold plate passageway radius, curvature, and spacing balances coolant pressure drop with more uniform battery pack temperatures.

A bent metallic flat spring links PCB components to a heat-dissipating structure, improving heat transfer while simplifying assembly and recycling.

Using MnZnx as the negative electrode active material raises first-cycle charge-discharge efficiency and discharge capacity in nonaqueous batteries.

An integrated cell accommodation and cooling layout replaces multi-plate frames to raise energy density, simplify assembly, and improve pack cooling.

Sequential solution-phase coating forms an artificial SEI that resists anode expansion, limits lithium loss, and extends cycle life.

A closed-end firefighting pipe discharges medium on pressure relief while limiting condensation that can short battery cells.

Resin holders and metal plates isolate heat between stacked flat cells while improving dissipation, fire protection, and pack stability.

Multi-element Ni-Cu-Ti co-doping in an O3 sodium-ion cathode helps raise reversible capacity while suppressing phase-change-driven cycle loss.

Boron-containing lithium salt and ester additives form a stable SEI that limits carbonate decomposition, gas buildup, and cycle fade.

Localized flow channels create turbulence around battery tabs to cut cell temperature deviation and improve pack cooling with less fluid.

A silicon nitride phase in silicon oxide or silicate anodes resists HF erosion and stress, improving cycle life and capacity retention.

Hot battery vent byproducts are cooled through an integrated vent manifold and coolant passage to limit thermal propagation during pack venting.

A grooved shell creates a controlled weak area that vents cell pressure on time while preserving toughness and fatigue strength in normal use.

A fluorinated phase-change medium in a sealed battery pack conducts heat away from cells and suppresses thermal runaway and fire risk.

A recessed tab-root region disperses bending stress in compact lithium-ion batteries, reducing tab rebound and stabilizing connections.

Phase change material bricks cool battery cells while interrupter-based reconfiguration keeps vehicle packs within safer low-voltage limits.

A recessed protective plate houses battery signal lines to keep cooling contact even and reduce cell aging, overheating, and burn risk.

Specific additives in the negative active material layer enable faster electrode coating while limiting cracking and preserving discharge capacity.

A low-stiffness energy-absorbing structure shields battery cooling channels from bottom impact while preserving heat dissipation and reducing added reinforcement.

A copolymer-coated separator improves slurry dispersion, adhesion to polyolefin films and electrodes, and heat resistance in secondary batteries.

A two-layer negative electrode with different particle aspect ratios builds Li-ion diffusion channels to support fast charging and curb lithium plating.

Controlled crystal orientation and Raman D/G distribution improve resistance and lithium-ion intercalation in carbonaceous anode layers.

Cell covers around adjacent pouch cells guide vent gas and trap hot particles to limit flame spread while improving pack assembly and density.

Partial coolant immersion and sealed cell-holder interfaces improve battery heat transfer, charging capability, and thermal safety.

Replacing sulfur with Li-Sm-O halides avoids hydrogen sulfide in air and delivers high lithium ion conductivity for solid-state batteries.

A diffused transition-metal gradient in a Li-Zr-Nb/Sb/Ta ion conductor improves cathode interface adhesion, lowers resistance, and boosts room-temperature cycling.

W or Mo doping strengthens layered NaMnO2 cathodes, suppressing charge-discharge phase change and improving capacity, cycling, and rate capability.

Controlled lithium carbonate, lithium hydroxide, and nitrogen on cathode particles improve cycle life while suppressing capacity loss.

A heat-expandable barrier seals cell degassing passages during thermal events, limiting heat spread while preserving battery cooling attachment.

Differential isolated SPI with equal bit and idle periods speeds BMIC daisy-chain data transfer while preserving noise robustness and galvanic isolation.

An asymmetric LiCl-ZnCl2 solvation network keeps battery electrolytes conductive and stable from low to high temperatures.

A sealed multi-channel cooling tube separates opposing fluid paths to stop hot-fluid re-injection and improve battery pack heat exchange.

A wet-laid silicon paste anode replaces dry compression to control thickness, cut waste, and support mass production of proton batteries.

Surface-treated carbon nanotubes and a nitrile-diene polymer slurry lower battery internal resistance while preserving cycle characteristics.

An endothermic additive in the pressurizing liquid helps solid-state battery modules detect abnormal heat earlier and delay thermal runaway.

A protective sheet and venting guide redirect hot cell gases outside the pack to limit transfer and thermal runaway between modules.

Flow channels and convex patterns guide adhesive under cell weight to secure battery cells in the housing frame with stable 3D bonding.

Internal guides and lower ribs create smooth inlet-to-outlet airflow, cooling battery cells uniformly without heavier or more complex pack structures.

An integral bus bar and cooling member draws heat along large cylindrical cell surfaces, improving battery pack cooling with fewer parts.

A base-treated separator captures HF-derived fluorine ions at the separator surface, reducing cathode damage and extending Li-ion cycle life.

Cooling plates and heat insulation sheets between adjacent cells block heat propagation and keep battery pack temperatures more uniform.

Surface-modified carbon and a MoS2-coated separator curb polysulfide elution, enabling higher energy density and longer lithium-sulfur battery life.

Multi-layer phosphate and pyrophosphate shells plus electrolyte additives curb Mn leaching and side reactions in lithium manganese phosphate batteries.

Expandable plates position earbuds against a phone NFC coil to keep wireless charging and data transfer aligned and stable.

Openings in the electrode tab release folding stress during manufacturing, preserving overcurrent area, reducing heat, and avoiding overlap.

A vinyl pyrrolidone polymer coolant forms a weak protective film on metal surfaces to limit corrosion and keep electrical conductivity low during aging.

Insulation, adhesive, and heat-resistant layers enable stacked battery cell tab connection without brackets or bolts, reducing short-circuit risk and cost.

A silicone-sealed cavity releases fire extinguishing liquid at high temperature to delay thermal runaway and limit fire spread in battery packs.

Controlling cathode moisture below 250 ppm helps a lithium-containing fluoride coating suppress resistance layers and lower battery output resistance.

A Co-rich gradient surface on Ni-based cathodes suppresses side reactions and metal dissolution, improving high-voltage cycling and thermal stability.

Dielectric-coated cold plates with vent openings limit condensate shorting and relieve battery outgas pressure to reduce fire risk.

A rigid tubular frame with flexible foil-laminate covers accommodates cell growth while improving sealing, packing efficiency, and cell protection.

Tin doping and dioxane hot pressing create grain boundary channels in lithium cobaltate, improving high-voltage conductivity and cycle retention.

Waste heat from motors and DC-DC converters heats the coolant loop while feedforward, feedback, and PID control manage pumps and fans.