Secondary Cells TRIZ Cases

Separate battery housing parts are bonded through a coolant tube, cutting assembly complexity while maintaining strength and fluid-tight cooling.

Na-stabilized O2-phase lithium cobalt cathodes use pores and gaps to sustain high-voltage capacity while limiting phase collapse and cobalt dissolution.

Integrated thermal bridges cool traction battery busbars through fluid conduits while seals prevent electrical shorts and leakage.

A grooved battery cell bottom with curved contact regions improves heat flow to the cooling plate while reducing added thermal interface material.

A dual-component outer layer on high-Ni positive electrode material suppresses cation mixing while preserving battery capacity and lifetime.

A corrugated shield between the cell stack and enclosure contains vent byproducts, protects the battery pack housing, and forms coolant channels.

Pressure-triggered phase changes in PIT materials absorb electrode swelling, reduce stress, and preserve conductivity in battery cells.

An immersion-liquid bracket cools the cell and electrode column while a nested sealing structure limits added battery pack complexity.

Separating salt addition from slurry mixing limits moisture capture, corrosion, and degradation while enabling thicker semi-solid electrodes.

Combining large and small cathode particles in controlled proportions raises volumetric energy density while limiting impedance growth.

Controlled LiNO3 dissolution in a carbonate-ether electrolyte forms a low-resistance cathode film, cutting side reactions and improving cycle life.

A flexible outer cover with a liquid-cured support member evens pressure across battery cells to limit cell deterioration in dense cases.

A narrow-side vent cap relieves thermal runaway gases in prismatic cells without taking upper-surface space needed for cooling and connections.

A bracketed vent path routes thermal runaway gas to a bottom explosion-proof valve while shielding it from core contact and assembly damage.

Integrated coolant lines, center-post support, and conductive potting improve battery cell heat removal, swelling resistance, and serviceability.

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

Monolithic standoffs and support sheets create defined coolant channels for immersion-cooled battery packs, improving heat removal and limiting overheating.

Integrated coolant channels in a hollow base plate cool battery modules more evenly while reducing hose-heavy pack assembly complexity.

Recess-and-protrusion plate bodies speed battery cooling plate assembly while preventing shift and misalignment in larger modules.

Smaller cathode particles fill voids between larger ones to raise compacted density and improve sodium-ion battery energy density.

An internal thermal management component intersects box beams to cool battery high-voltage modules while reducing thickness and adding strength.

By moving the cooling unit outside the battery pack case, this design reduces refrigerant leakage risk and simplifies cooling part replacement.

A mixed NFPP and Na2FeP2O7 cathode composition raises compacted density while preserving discharge capacity in sodium-ion batteries.

Controlled Na:Fe:P ratios, carbon coating, and near-spherical particles raise compacted density and processability in sodium-ion cathodes.

Higher-conductivity central supports move heat outward faster, making battery cell temperatures more uniform across the module.

A finned cooling plate between battery cell levels cools vent gases and captures hot particles to limit thermal propagation and upper-cell damage.

Localized side-plate pressurizing offsets cell thickness deviation to stabilize surface pressure and prevent capacity loss in battery modules.

An exhaust plate and vent structure route cell gases out of the battery while supporting thermal control and protecting internal components.

Protrusions and thermal interface layers in an integrated coolant plate improve battery pack heat removal without adding major system complexity.

Integrated fixtures align with rack columns to cut anchors, simplify installation, and preserve earthquake resistance in energy storage enclosures.

Aqueous organic metal salt treatment suppresses gas generation in NCA cathode powder while preserving high discharge capacity and cycle retention.

A refrigerant transfer bolt links the pack pipe and heat sink, opening by refrigerant temperature to improve cooling and reduce leak risk.

Using LiFSI with VC, FEC, PS, and ES limits HF-related decay and impedance growth, helping lithium-ion batteries retain capacity at high temperature.

Embedding exhaust fans inside the battery pack improves airflow, cuts fan noise, and saves space without sacrificing cooling.

Apertures in the current collector isolation layer let potting material fill cell gaps while preserving thermal and electrical insulation.

A water-soluble polymer binder boosts separator-electrode adhesion while limiting air permeability and resistance increases in batteries.

A mixed single-crystal and polycrystalline cathode with Al tuning helps high-nickel batteries balance energy density, cycle life, and heat safety.

Opposed insulating protrusions around the tab overlap spread stress and suppress electrode substrate cracking without extra processing.

Controlled electrode recess width and separator air permeability improve fast charging while limiting voltage drop and separator puncture risk.

Spaced metal support plates and insulating connection plates block short-circuit loops during thermal runaway while maintaining heat conduction.

A flat composite bottom guard plate uses a connecting assembly to secure the battery box while cutting weight, shaping complexity, and cost.

Alternating active layers and fluorinated copolymer binders suppress slurry gelation while improving positive electrode peel strength.

Mixing Na4Fe3(PO4)2P2O7 with Na2FeP2O7 forms a core-coating cathode that lifts compacted density and supports higher battery energy density.

A conductive mesh flame arrestor redirects vent heat, traps particulates, and works with thermal mass to limit thermal runaway spread.

A rounded battery pin bend shortens current flow paths after tab welding, cutting internal resistance while preserving strength and space efficiency.

Dynamic acetate-sulfate buffering shifts battery pH across charge cycles to raise capacity while limiting degradation and maintenance.

Bus bars fixed to the binding bar and pressed onto cell terminals cut pack size limits while keeping stable contact during battery expansion.

Heat-resistant bodies around a battery module fuse contain melt scattering and protect nearby voltage detection and surrounding components.

Recess-and-protrusion plate interfaces speed battery pack assembly by preventing shift and misalignment in multi-cell cooling structures.

A side separator gap suppresses capillary water flow and drains ingress water to prevent short circuits and improve battery module reliability.

Grouped and alternating discharge checks pinpoint battery cell and control connection faults quickly, improving diagnostic reliability.

Integrated roll-bonded metal sheets form cooling and crash channels in the battery pack housing, cutting parts while improving heat and impact protection.

Compression pads, pressure walls, and guide pins secure stacked cell units, limiting swelling while improving battery-pack stability and energy density.

Roll-bonded metal sheets form a battery module frame with built-in cooling channels, cutting parts, assembly steps, and thermal resistance.

Roll-bonded metal sheets form inflatable cooling channels that maintain uniform cell pressure and heat transfer despite height variation.

Separating cathode active materials by shrinkage rate preserves conductive networks and limits impedance growth during battery cycling.

A dual-salt electrolyte with fluorinated phosphazene suppresses cathode oxidation, lowers DC impedance, and improves Li-ion battery stability.

An integrated bracket and frame create a vent path for flame and gas discharge while fixing battery cells without sacrificing pack energy density.

Hollow support beams reinforce the battery pack while venting gas through frame channels, preserving cell space and pack rigidity.

Insulating partition walls in a stacked battery tab connector isolate proper connection targets, preventing shorts while improving assembly and contact reliability.

Physical adsorption on porous conductive carbon immobilizes quinone cathodes, limiting leaching while preserving rechargeability and energy density.

Parallel fluid channels and a central plate cut pressure drop and improve surface temperature uniformity in phase-change heat exchange.

Layered welded flanges turn a two-part battery module shear wall into a stiffer support that reduces bending and stress under vertical loads.

Varying cell size and thickness across an electrochemical array balances swelling pressure and temperature differences in larger battery packs.

Multiple branch flow paths from a main cooling pipe even out battery pack temperatures and reduce position-based cooling variation.

A sealed port with a metal pipe regulates gas flow in a laminate secondary battery to maintain confining pressure and prevent pressure-related damage.

Controlled Li, Mn, and Ni oxidation states in LMR cathodes improve voltage stability, rate capability, and cycle life in lithium-ion batteries.

A low-viscosity PC-EC-nitrile electrolyte balances high-voltage and high-temperature stability with room-temperature kinetics.

An ultra-thin inorganic protective layer lets the positive current collector be coated in stages, reducing winding wrinkles without sacrificing active coating capacity.

A metal foam or honeycomb end spacer absorbs cell swelling and length tolerances to keep battery cell stack pressure uniform over time.

One lubricating oil balances cooling, flash point, and insulation so batteries, motors, and reduction gears can share one circulation loop.

Top and bottom cooling members with a connector-fed water path cool both cell surfaces evenly, minimizing battery module temperature deviation.

Separate phosphate and ternary cathode films with matched anode OI values raise lithium-ion cell energy density while preserving safety and cycle life.

Smoke and overheat checks in the avionics bay separate contained from uncontained battery thermal runaway, improving pilot alerts.

Deformable arms let the end plate maintain cell stack pressure despite tolerance variation and swelling, avoiding costly adjustment.

A water-based phase change barrier between cell blocks absorbs heat to delay thermal runaway propagation in battery modules.

Carbon coating plus Ti and Mn doping help sodium iron silicate cathodes overcome low conductivity and slow charge exchange for better capacity and cycle life.

Integrated ribs guide cooling air between battery cells, improving heat removal while cutting separate parts and module cost.

Controlled K/Ti ratio and 750-900°C sintering produce high-purity monoclinic TiO2(B) with lower energy use and easier scale-up.

Dual-size LFP cathode particles and a carboxylate ester electrolyte improve fast charging while limiting gas generation and cycle degradation.

Integrated cooling ribs in a press-hardened steel battery tray improve heat dissipation and crash resistance without added assembly complexity.

Stacked PCM composites around battery cells improve temperature uniformity and help prevent thermal runaway with lower active cooling demand.

Cyclone venting separates particles from thermal runaway gases and fluids, reducing external flame exposure while preserving battery pack discharge.

Cooling inlets and outlets built into the battery module cover simplify sealing, maintain cell cooling, and support thermal runaway isolation.

Surface Co and Mn gradients in a Li-rich cathode oxide suppress oxygen loss and metal migration, improving battery capacity and cycle retention.

Controlling binder particle size reduces coating defects in electrode slurry and helps maintain low-temperature cycle performance.

Variable-thickness frame elements and an integrated cooling base cut EV battery housing weight while preserving load capacity and crash resistance.

Low-voidage beta-alumina sheets use isostatic pressing and composition control to maintain high ion conduction in thin sodium solid-state cells.

Fluorine-stabilized LixFeF(3+x) cathodes raise Li-ion battery voltage to 3.8-4.0 V while preserving iron-based material stability.

A series-connected refrigerant path lowers pressure loss and delivers more uniform cooling across side-by-side battery cell stacks.

Binder-coated conductive carbon fiber tubes stabilize the negative active material layer, reducing detachment and improving charge rate and cycle retention.

An encapsulated metal plate between battery cells adds rigidity and heat spreading while keeping the insulator thin, compressible, and electrically isolated.

Shared thermal management components between adjacent battery cells improve temperature uniformity, structural support, and pack energy density.

Variable duct cross-sections and a short flow path improve heat-transfer uniformity across a battery heat exchanger plate while limiting pressure loss.

A low-density molded element cuts coolant volume and battery pack mass while holding cells securely for efficient temperature control.

Integrated liquid receivers and gas discharge paths contain coolant leaks, prevent shorts, and limit fire propagation in vehicle battery packs.

Controlling filling rate and compression resilience helps sodium-ion cathodes raise energy density while limiting pulverization and shedding.

Varying channel cross-sections and flow paths evens plate temperature while limiting pressure loss in traction battery cooling.

Integrated cell and module vents direct flame and gas through a preset path, reducing thermal runaway spread and improving battery module stability.

Valve-split coolant flow cools mixed-chemistry battery modules selectively, cutting thermal stress, energy use, and cooling complexity.

Low-orientation graphite with hydroxyalkyl carboxymethyl cellulose improves slurry adhesion while limiting swelling and preserving low-temperature rate performance.

A conduit releases protective medium at the battery cell vent to cool thermal runaway discharge and limit damage to nearby cells.

Hot vent gas is cooled below 500°C while a filter or baffle limits ejected particles, reducing ignition risk in battery modules.

Laterally placed flush spray orifices cool battery cell rows with less dielectric fluid, preserving pack height, connector clearance, and cell density.

A detachable two-bracket assembly secures the acquisition wiring harness and connector to prevent looseness, collision, and signal failure during vibration testing.

Sliding integral spacers and axial clamping simplify battery module assembly while preserving coolant flow paths and cell fixation.

By combining side and end restraint functions, this battery module structure cuts weight and mounting space while maintaining cell protection.

Embedded LFP particles in a porous carbon matrix improve conductivity, charging capacity, and cycle life with aqueous, scalable processing.

A restraint member and perpendicular extrusion supports add battery pack rigidity while cutting frame weight and preserving cell mount space.

Larger-particle inserts in the coating layer raise compacted density while improving electrolyte infiltration and battery discharge retention.

A bicyclic sulfate electrolyte additive forms a conductive cathode film that limits gas generation and resistance in high-voltage nickel-rich lithium batteries.

Bottom-routed pack busbars shorten electrical paths, reduce battery thickness and heat spread, and avoid flame exposure during thermal runaway.

A doped lithium manganese oxide cathode cuts trace metal impurities to improve capacity retention, stability, and battery cycle life.

Using iron phosphide waste, leaching, ball-milling, and surfactant activation, this case cuts impurities and energy use in iron phosphate production.

A layered battery insulator balances heat blocking and elastic compression to cushion cell expansion during thermal runaway.

A heat-conducting pad cools cell stacks in normal use, then vaporizes at high temperature to create a gap that blocks heat spread.

A porous-core sandwich end plate resists battery cell pressure, cutting module deformation and weight while preserving structural safety.

Discrete silicon-rich and graphite-rich anode layers with a crosslinked binder reduce stress from silicon volume change and extend cycle life.

Vertical stacking with plate heat sinks, columns, and reinforcing members improves battery array assembly, density, and cooling.

Spray drying, ion doping, and sintering reshape lithium iron phosphate particles to raise tap density while preserving specific capacity.

A two-layer negative electrode balances small and large pore regions to improve electrolyte flow and cycle stability during high-rate charging.

A bent battery region and dual attachment structure increase capacity and runtime while preserving compact electronic device size.

Integrated module converters let EV battery packs power controllers and contactors without a separate low-voltage battery, improving start reliability.

A recessed buffer space and frame cooling slots let a lithium battery housing absorb core expansion while dissipating heat more uniformly.

A copolymer binder and crystalline carbon orientation help Si-C anodes limit swelling, stay attached to the collector, and improve cycle life.

Individual gas paths collect and vent high-temperature cell exhaust away from adjacent cells to limit thermal runaway spread in battery enclosures.

Controlled holes in a silicon-containing negative electrode absorb expansion stress, improving cycle-life and high-rate charging.

Separation members between adjacent battery cells add cooling channels that discharge heat quickly and help block thermal runaway propagation.

Reduced-order thermal and electrical module models cut battery pack simulation from hours to minutes while preserving real-time design accuracy.

A polydopamine support layer with inorganic particles boosts separator stiffness and consumes metallic dendrites to improve battery safety and discharge rate.

Tray supports create a pressure relief cavity that improves battery pack impact protection and slows hot gas discharge to help prevent open fire.

Partitioned header tanks create upstream, intermediate, and downstream cooling paths so one heat exchanger can cool two batteries with less size and complexity.

Liquid-phase phosphate and metal-salt coating reduces cathode residual alkali while preserving conductivity, cycle stability, and energy density.

A LiPO2F2 electrolyte additive matched to cathode surface area improves LFP battery cycling, high-temperature storage, and impedance.

Preformed pad concaves hold curable resin to fit irregular battery cells, improving cooling contact while easing assembly and curing.

Multiple sensors trigger a staged battery cell response with power cut-off, oxygen isolation, and internal coolant injection to limit fire damage.

Dimpled enclosure walls and integrated ventilation improve battery cooling uniformity, cut vibration and noise, and maintain ingress protection.

Open channels in intermediate parts let dielectric liquid contact battery cells, improving heat removal without bulky finned plates.

Controlled degassing and cell cooling contain hot gas, particles, and heat from a runaway battery cell before propagation reaches adjacent cells.

An L-shaped module-end and surrounding frame shift battery load off the bottom plate, raising pack density while preserving stiffness and cooling.

Distinct sleeve shapes let adjacent battery cooling units connect directly, cutting parts, tolerance buildup, and leak-prone assembly steps.

Pre-dissociated plant fiber and spray-drying form porous carbon microspheres that raise lithium storage capacity and improve cycle stability.

Micropore-controlled hard carbon stores lithium reversibly to raise anode energy density, first-cycle efficiency, and cycle life.

A filling channel exposes cell sidewalls to thermal interface material, adding side cooling to bottom cooling for better battery pack heat transfer.

Hollow NCM cathode particles with high surface area and a LBOB carboxylate electrolyte help low-cobalt Li-ion cells retain output.

Tungsten and boron compounds between cathode primary particles cut reaction resistance and improve lithium-ion output while limiting tungsten elution.

Oxygen sensing meters inert gas only to the limiting oxygen concentration in a battery housing, cutting gas storage, weight, and cost.

A dual-additive electrolyte builds a stable SEI film to lower discharge resistance while suppressing gas generation and thickness increase.