Secondary Cells TRIZ Cases

Alternating heat exchange plates with orthogonal water jackets provide consistent cooling across battery cell stacks.

A composite protective layer on an electrode tab substrate enhances electrolyte resistance through controlled atomic ratios.

A layered oxide material with specific copper, iron, and manganese ratios serves as a high-capacity cathode for sodium-ion batteries.

Doping Li7La3Zr2O12 with Nb, Sb, or W lowers interfacial resistance in stacked cells, enabling high charge/discharge rates without sacrificing capacity density.

Selective cell control prevents dendrite formation in lithium metal anodes, ensuring accurate state of charge estimation.

A thermal compensation layer with a bimetallic actuator adapts to surface irregularities between battery cells and cooling plates.

A water-based fire suppression system for lithium-ion battery containers uses pressurized gas to maintain continuous coolant flow.

Partition plates divide the housing into modular spaces, resolving maintenance difficulties caused by high consistency requirements in direct-to-pack designs.

An integrated coolant channel in a composite battery enclosure merges structural support and active cooling, reducing weight while maintaining high strength.

A battery protection circuit uses a temperature sensor to control charge and discharge elements for safe operation.

Integrated skeleton part merges structural reinforcement, stack positioning, and exhaust ducts to enhance housing rigidity without increasing component count.

A battery module extracts heat from electrochemical cells using a heat sink and thermal interface, reducing thermal gradients without active cooling systems.

An inorganic phosphate salt layer protects lithium-ion battery cathodes from transition metal elution, preserving discharge capacity over 500 cycles.

Integrating cooling ducts into a heat-conducting plastic housing reduces installation space and enhances crash performance for vehicle batteries.

Inverting the structure with a top cooling layer and bottom vent hole resolves vehicle safety requirements.

Tail-end cooling plates paired with variable thermal resistance devices reduce temperature gradients in stacked batteries.

High-concentration lithium salt electrolyte suppresses flammability and dendrite growth while maintaining ionic conductivity.

A modified coating film on the positive electrode active material layer suppresses exothermic reactions during voltage rises.

Thermoelectric devices transfer heat from battery cells through a thermal channel, reducing system size and mass compared to conventional refrigerant cooling.

Orthorhombic transition metal phosphate with controlled BET surface area resolves insufficient discharge capacity in sodium secondary batteries.

Replacing metal with phosphazene-modified polycarbonate channels reduces vehicle weight and manufacturing complexity while maintaining thermal conductivity.

A lithium transition metal composite oxide coated with a lithium metal compound and boron compound layer reduces charge transfer resistance.

Staggered exhaust guide components meander flow inside a battery pack duct, separating particles without increasing volume.

Vortex forming parts in battery pack heat sinks guide cooling water flow to resolve low heat exchange efficiency in compact designs.

ALD forms hydrophobic inorganic layers on porous polymer separators to suppress thermal contraction and reduce water content.

Apertures in the carrier members channel airflow through the assembly to dissipate heat from the battery cell.

A light-emitting diode array mounted behind housing holes displays battery charge status through segmented illumination patterns.

A polyolefin porous membrane with surface protrusions anchors a modified layer to prevent delamination during high-speed processing.

A busbar frame uses a heat-resistant member to prevent thermal deformation.

Z-axis coolant channels in side cooling plates balance temperatures across stacked cells, reducing variation and extending lifespan.

Radial gas flow path between inner and outer seals directs exhaust away from electrode tabs, protecting adjacent sensitive components from heat damage.

A secondary battery current interrupt device uses an insulant film to maintain electrical disconnection after the thinned section breaks.

An outer temperature sensor measures gas ventilation passage heat via thermal conduction, enabling size reduction without blocking internal sensor installation.

A high-nickel cathode material uses a boron gradient to protect particle surfaces.

An elastic member presses a deformable heater against a bending power storage module, eliminating gaps that reduce heat transfer efficiency.

Cyclic anhydride additives eliminate trace water in lithium-ion electrolytes, preventing HF generation and improving high-temperature cycling stability.

Segmented compartments with heat-insulating elements contain thermal runaway, while smoke discharge channels vent high-temperature gases externally.

Segmented band-shaped active material patterns separated by carbon gaps reduce stress and prevent delamination during charge cycles.

Removing thermal fins reduces weight and cost while maintaining heat dissipation through direct cell casing contact.

A battery block separates safety valves and fuses across distinct current collecting parts to maintain independent operation.

A cell holder uses a disc spring pressing portion to maintain constant pressure on secondary battery end faces.

Lithium chloride derivative compounds conduct lithium ions through a stable P21/c crystal lattice.

Staggered cell arrangement with intermediary heat dissipation members manages thermal loads while maintaining compact volume.

A battery wiring module protector with a positioning section aligns connecting members before insertion.

A universal bus bar holding module adapts to various power extraction positions using segmented protector portions.

An L-shaped gas passage cools high-temperature gas from battery modules, preventing thermal risks to surrounding areas.

Battery housing cover features insertion device positioning temperature sensor to measure cell heat via thermal conduction without disrupting conductor tracks.

Segmented heat transfer plates circulate fluids at varying rates to resolve temperature differences in heterogeneous heating zones.

Non-aqueous dielectric heat transfer fluids maximize heat removal while minimizing pump power consumption through a normalized effectiveness factor.