Secondary Cells TRIZ Cases

A composite oxide dielectric forms a hetero-interface with the positive electrode active material to lower electrical resistance at normal operating temperatures.

One-side electrical contacting frees cell ends for thermal coupling with the housing, reducing power loss and increasing packing density.

A heat-dissipating elastic body composition uses conductive fillers in a rubber matrix to radiate thermal energy while absorbing mechanical shocks.

A cooling element distributor divides a two-phase refrigerant mixture into parallel lines to maintain consistent mixing ratios across all channels.

Sequential branching in the battery module heatsink minimizes pressure drop and reduces temperature non-uniformity among cells.

An integrated cold plate moves coolant circulation outside the housing to reduce leakage risk while maintaining thermal control.

A liquid electrode composition uses a polymerizable compound to maintain low viscosity for stable discharge from inkjet heads.

Nested welding bushes with cap members increase load surface area to distribute stress, reducing weight while maintaining structural integrity.

Cooling spacers between cell stacks dissipate heat into coolant, preventing temperature rise in high-density modules.

Metallic heat dissipation plate overlaps battery pack and substrate to transfer thermal energy while reinforcing device rigidity.

Pre-coating metal and plastic layers on the sealing housing prevents thickness reduction and pinhole defects at folding corners during impact molding.

Offset connecting tabs on a cell connector allow lateral tool access for ultrasonic welding, resolving limited space constraints in high-density battery packs.

A lithium transition metal oxide cathode with controlled oxidation states enhances ion mobility and electrochemical stability.

Coupling units in each module switch or disconnect cells to set intermediate circuit voltage, isolating defects without extra switches.

An integrated heating element with a conductive core warms the battery, resolving performance loss and reliability risks caused by low ambient temperatures.

A battery thermal system uses nested phase change material shells to absorb and release heat for temperature control.

Ester-based cooling composition prevents thermal runaway by maintaining electrical insulation and thermal stability at high temperatures.

Silanated silica nanolayers bond ceramic and polymer electrolytes, reducing interfacial resistance while preventing dendrite growth.

Formula 1 cyclic sulfate esters stabilize nickel-rich cathodes by suppressing resistance increase and extending lifespan under high temperatures.

Voltage dividing resistances and a ground fault detecting resistance measure current direction to specify the fault spot, eliminating the need for breakers.

Dissolving transition metals into lithium oxide forms a solid solution that reduces charging overpotential while maintaining antifluorite crystal structure.

A positive electrode combines spinel lithium-manganese oxide with lithium phosphate to form a protective coating film on the active material surface.

Metal-containing oxyhydroxide precursor with nickel in the +3 oxidation state improves lithium metal oxide cathode performance.

A positive electrode mixture layer features a thicker first oxide layer near the current collector and a thinner second oxide layer further away.

A protective circuit uses a smoothing circuit to process pulse-like charging signals and control output elements.

Silicon-free aluminophosphate zeolite filler resists HF degradation while adsorbing gas, preventing battery swelling and maintaining capacity retention.

Segmenting silicon into nanoscale particles within a porous carbon matrix reduces mechanical stress and prevents fracturing, maintaining capacity retention.

Micromixer applies controlled shear energy to reduce viscosity, enabling high solid content concentrations above 65% by mass for easier electrode application.

Controlled precipitation of manganese nickel cobalt carbonates creates uniform cathode active materials for lithium ion batteries.

Injection tubes deliver thermal paste into module gaps without mechanical stress, preventing component damage during assembly.

Segmented guide vanes distribute airflow to distant channels, reducing temperature deviation across the battery module.

Grafted polymer chains on graphene cores merge conductivity with adhesion to reduce internal resistance and boost energy density.

Longitudinal fasteners replace adhesives in a modular battery frame, improving thermal control while lowering logistical complexity.

A non-aqueous electrolyte battery uses a tetrachalcogenofulvalene polymer in the positive electrode to store anions alongside lithium ions.

A smart battery charger delays charge initiation and limits capacity using usage history.

Segmenting the conductive layer into discrete elements reduces manufacturing complexity while maintaining electrical isolation across battery cells.

A fill head chamber uses sliding plunger and valve sequencing to inject electrolyte into battery cells under controlled pressure.

Functionalized copolymer binder eliminates toxic NMP solvents while maintaining high voltage electrochemical stability in aqueous secondary battery cathodes.

A heat exchanger uses directional turbulence elements to vary flow resistance based on coolant direction.

A lithium-rich oxide supplementing material stabilizes electrode chemistry through controlled stoichiometry and composite structures.

Dynamic threshold adjustment differentiates transient load rush currents from sustained overcurrents, preventing erroneous shutdowns and protecting FETs.

Varying gap widths between cells compensates for pressure drops to maintain uniform cooling across the battery pack.

Independent bus bar units slide along a rail member to absorb assembly tolerance from dimensional variations in battery storage elements.

A lithium battery charger adjusts output voltage using an offset calculated from open circuit measurements.

Succinonitrile and LiBOB additives form a protective film on doped LiCoO2 cathodes, suppressing impedance growth during high voltage cycling.

Acid or base treatment modifies the polyolefin separator surface to boost wettability, reducing slow electrolyte fill times in lithium-ion batteries.

Integrated multilayer wall assembly maintains constant stack-up pressure while dissipating heat laterally to prevent thermal runaway propagation.

A multilayer positive electrode active material layer segments surfactant concentration to improve electrolyte impregnation.

Adding sub-2 μm layered oxide particles to two-phase coexisting compounds mitigates rapid voltage rise at end of charge while maintaining discharge capacity.

A battery cold plate uses varying fin densities across subareas to enhance heat dissipation.