Secondary Cells TRIZ Cases

Ball-mill-assisted ALD applies uniform sub-nanoscale coatings to Ni-rich cathodes, improving surface stability, cycle life, and fast charging.

Bent gravity heat pipes and pulsed heat pipes spread battery heat to multiple cold plates, cutting cell temperature gradients below 5-7°C.

A nonlinear transition-metal gradient in co-precipitated cathode particles raises Ni content while preserving capacity retention and interface stability.

Interlocking module housings and centering elements enable tool-free EV battery assembly, lower weight, and form coolant channels without seals.

A pressure-triggered folded reversal assembly unfolds to short Li-Ion cell terminals during overcharge, stopping thermal runaway before damage.

A meltable cell base lets coolant flood a runaway battery cell, combining cooling and extinguishing in a compact pack structure.

Removing water from glycol coolant lowers conductivity and short-circuit risk in battery and fuel-cell cooling while preserving heat capacity.

Elastic support maintains pressure on a conductive member across two battery conductors, preventing poor contact and equipotential failure from loose bolts.

Fluid pressure expands a contact element to press the cooling channel against battery cells, simplifying assembly and reducing mechanical stress.

A two-stage locking cover keeps the detection terminal exposed for alignment, then shields the battery connection to improve assembly workability.

Valve-controlled upper and lower cooling modules balance water flow to prevent early-module over-cooling and keep battery temperatures uniform.

A module frame bottom plate merged with the heat sink improves battery cell cooling, rigidity, and refrigerant leak prevention.

Segmented pack-cover venting channels route high-temperature gas away from adjacent battery modules to limit thermal runaway propagation.

An internal extinguishing sheet uses flame-retardant or insulating layers to slow fire spread between adjacent battery cells in storage modules.

Two back-to-back cell sets with a shared CCS assembly raise battery capacity without excessive module height, easing EV installation.

Sodium-assisted coprecipitation creates widened ion channels in an NCM cathode precursor, improving lithium transport, rate capability, and cycling stability.

A zwitterionic binder balances strong electrode adhesion with lower resistance, supporting faster charging and longer lithium battery life.

Integrated heating films, cooling fins, and a compressive pad help battery cells warm evenly in cold conditions while dissipating heat.

Alternating lithium cobalt oxide layers with titanium compound separators limits crystal breakdown at deep charge and preserves cycle capacity.

Segmented plenums and parallel coolant channels even battery module temperatures while maintaining stable coolant pressure.

An inorganic surface layer cushions positive electrode particles during compression, enabling high packing density without excess breakage or conductivity loss.

A trigonal NaxLi3-xYCl6 solid electrolyte replaces flammable liquids to improve ionic conductivity, thermal stability, and battery safety.

Support members and stacked cooling blocks keep battery cell surface pressure stable while improving rigidity and installation flexibility.

Overlapping adhesive and non-adhesive insulator regions improve pin fitting, prevent metal exposure, and reduce battery short-circuit risk.

A two-stage sintered lithium-rich manganese oxide cathode stabilizes the composite structure to curb voltage decay and improve cycle life.

Controlling the Si2p spectrum of silicon negative electrode particles improves discharge load capacity while preserving battery capacity and cycle life.

Opposite surface charges keep silicon and carbon particles dispersed, reducing agglomeration, expansion, and rate loss in secondary batteries.

Valve-controlled dual coolant loops route battery fluid through or around a heat exchanger to hold pack temperature near 25-30°C.

An aluminum heat barrier between battery cells blocks radiant heat and triggers extinguishing vapor before flames spread.

Uniform Nb coating on lithium composite oxide primary particles improves secondary battery capacity by controlling dispersion with a TOF-SIMS Gini metric.

Phenyl isothiocyanate electrolyte additives form low-resistance electrode films that suppress reactant precipitation and improve charge-discharge stability.

A doped sodium-containing oxide cathode limits irreversible high-voltage phase change, improving capacity, rate performance, and cycle life.

A rigid flat part and surrounding guide keep the pouch end from collapsing inward as electrolyte is consumed, preserving cell shape.

An integrated cover and bottom clamp simplify CTP battery enclosure, cutting parts and assembly steps while protecting the cell assembly.

Interlocking protrusions and depressions strengthen the metal-plastic joint, limiting leaks and thermal-expansion deformation in cooling.

Sealed multi-stage cooling blocks and parallel hoses improve battery installation flexibility while limiting coolant leakage and vibration.

A fixing rod and tube replace multiple long bolts to secure battery modules, cutting pack assembly time, weight, and coupling complexity.

A frame-bonded cooling plate conducts heat from the battery stack while cutting module volume and weight for higher energy density.

A two-stage inert-atmosphere route with hydrazine, calcination, and ball milling raises lithium sulfide purity and whiteness for EV-grade production.

A conductive, electrically isolating compensation layer and integrated heater simplify battery thermal control while saving space and energy.

A thermistor-capacitor battery signature lets the charger identify battery type and set safe current, avoiding overcharge and slow charging.

A three-axis square-tube frame secures stacked battery modules, improving compression stability, crush safety, cooling, and pack weight.

A multi-layer battery module uses segmented cell assemblies and sensing lines with plates to improve space use, simplify assembly, and limit fire spread.

Parallel extruded channels and end manifolds improve battery module heat removal, reducing thermal resistance and cell temperature variation.

A T-shaped liquid cooling plate uses perpendicular flow channels and insulation to improve battery module temperature uniformity and thermal safety.

Integrated inlet and outlet channel sections distribute dielectric fluid through the module to prevent cell hotspots and support flexible battery assembly.

A moisture-adsorption-tuned porous carbon anode increases ion storage space to raise capacity without sacrificing initial coulombic efficiency.

An elastic end plate with a chambered spacer absorbs cell stack length errors to maintain sealing, alignment, and consistent pressure.

Bent cell peripheries, a thermal conductor, and a water jacket cut thermal material thickness while improving battery module energy density.

A tuned LiNaSO4 secondary phase in LCO cathode powder balances first discharge capacity with low capacity fading in lithium-ion batteries.

Functional monomer copolymerization creates an aqueous cathode binder that avoids NMP and improves adhesion, flexibility, and cycle stability.

A lattice-supported insulation member lets an energy storage explosion panel vary insulation thickness without increasing container protrusion.

External cooling channels built into the battery box cut weight, avoid coolant leaks near cells, and improve temperature uniformity.

A manganese-oxide coating helps lithiated layered oxide cathodes resist cycling and heat-driven structural change, preserving potential and capacity.

Notched bosses and an insulating adhesive sheet create guided flow paths that speed electrolyte filling and improve humidity uniformity in the electrode assembly.

Straps, spacers, and compression pads constrain lithium-ion cell swelling, maintain stack alignment, and simplify module decommissioning.

Interposed barriers with thermal insulation and flame blocking isolate adjacent cells to slow thermal runaway spread in dense battery modules.

Integrated cross beams with cooling water channels replace bulky cell frames, simplifying battery pack assembly while raising strength and energy density.

Adjoining vent units with overlapping rims and semipermeable membranes balance battery housing pressure while blocking water ingress.

A dual-region separator coating forms polymer protrusions in electrolyte to keep electrodes closer, improving lithium-ion transport, cycling, and safety.

Cooling fins placed at protruding electrode lead regions shorten heat paths, improving battery module cooling and cell temperature uniformity.

Dry mixing ceramic fillers into a polyolefin separator creates pores without solvents, improving thermal resistance and short-circuit safety.

Transition metals in a Bi-containing garnet solid electrolyte suppress grain-boundary electron conduction while preserving ion transport.

Na- and metal-doped LiCoO2 cathodes stabilize high-voltage cycling, limiting phase transition while preserving capacity and conductivity.

Direct liquid injection between battery cells improves heat removal in dense backup units, supporting high charging and discharging loads.

Directly cooling the busbar with an integrated cooling member cuts pack volume, simplifies molding, and lowers thermal runaway risk.

A high-viscosity base stock with additives improves EV heat transfer while resisting oxidation, deposits, and wear over longer service intervals.

An alkali-binding additive and tailored binder keep positive electrode slurry stable, cut gas evolution, and protect battery storage performance.

A centered fill opening and side-wall electrode connections remove angle correction during electrolyte injection and simplify button cell assembly.

Uniform dopant distribution in nickel-rich NCM cathodes improves thermal stability and high-temperature cycling without sacrificing energy density.

A water absorber captures condensation on the cooling medium passage, keeping battery modules cool without added moisture-control complexity.

Precise Li and transition metal ratios in garnet ceramics curb impurity-driven electron leakage while maintaining ion conductivity and density.

Capillary refrigerant cooling removes battery cell heat inside the module, avoiding cooling plates and complex fluid circulation.

Variable wire cross-sections and laying density help battery modules heat colder cells more evenly, reducing lithium plating and premature aging.

Flexible wiring shifts from a temporary to final mounted form to cut battery module footprint while keeping terminal connection and voltage detection.

A serpentine cooling channel lowers lithium-ion runaway gas temperature before air mixing, reducing ignition risk in aircraft battery packs.

A lithium-rich metal oxide cathode and controlled electrolyte fluorine content curb metal dissolution, self-discharge, and gas at high temperature.

A doped core-shell ternary precursor balances high nickel gram capacity with better structural stability, cycling life, and corrosion resistance.

Liquid-cooled BBU modules use supply and return manifolds plus a balance loop to stabilize fluid levels and remove heat in dense server racks.

Lower heat sinks, thermal resin, and inter-cell cooling fins improve battery module heat dissipation and reduce temperature variation between cells.

A nested branch connector joins cooling pipes on different planes to improve heat dissipation while preventing water leakage in battery modules.

A non-uniform flame-retardant barrier between battery cells delays heat transfer during swelling and helps prevent secondary ignition.

A fixed and detachable beam layout restrains battery module swelling evenly, reducing side-wall pressure, lithium plating, and pack stress.

Bent steel frames replace plastic cartridges to cut battery module assembly time while improving rigidity, heat dissipation, and energy density.

TIM-filled through-holes in the battery support member create localized heat paths to the heat sink, improving cooling with less material and weight.

A sealed overflow liquid tank submerges Li-Ion batteries to dissipate heat quickly and contain toxic gases during testing.

Flow channels bonded to each cell’s largest wall improve heat dissipation without added pack structures, preserving space and battery life.

Simultaneous voltage sensing at resistor and direct line terminals improves detection of battery voltage line connection abnormalities.

A magnesium salt with a Si-N-Si ring structure stabilizes the electrolyte solution for energy storage applications.

Controlling the (100) plane crystallite diameter suppresses cation mixing in the crystal structure, maintaining discharge capacity and cycle characteristics.