Secondary Cells TRIZ Cases

An integrated base plate and coolant circuit strengthens the battery pack while cutting volume, weight, and assembly complexity.

Layered welded flanges create a thicker shear wall interface that stiffens a hanging battery module and reduces bending stress under vertical loads.

Controlled high-nickel cathode particle size and surface coating suppress electrolyte side reactions, lowering gas generation without sacrificing storage performance.

Large polycrystalline and small monolithic lithium oxide particles improve cathode packing density while limiting brittleness, breakage, and cycle loss.

Controlling polymer composition and residual mercaptan improves conductive material dispersion at high temperature and lowers battery internal resistance.

Integrating coolant channels into the battery pack frame cuts parts and assembly effort while maintaining uniform module cooling.

Controlling blackness and thickener viscosity in negative electrode paste improves dispersion, limits resistance rise, and extends battery life.

A soluble insulating separator blocks heat between battery cells, then dissolves in extinguishing liquid to open cooling paths without extra pack space.

Integrated heat-sink ports in the housing improve battery module cooling, space use, and resistance to vibration and impact.

Recessed adhesive and locally thicker cover and base sections reduce cell edge stress, improving battery pack durability and energy density.

A gradient Ni-Co-Mn single-crystal cathode balances high capacity with thermal stability while reducing gas generation and capacity fade.

Two Ni-containing lithium composite oxides with tuned primary and secondary particle sizes raise capacity and rate performance while suppressing Ni/Mn dissolution.

An oxide-coated high-nickel cathode cuts residual lithium, side reactions, and DC impedance while improving cycle and rate performance.

A cyclic sulfate electrolyte additive forms a stable cathode interface film to limit metal ion dissolution and preserve high-temperature cycling.

Alternating graphite layers with different internal porosities improve electrolyte permeation, cycle life, and capacity in nonaqueous batteries.

Selective separator permeability at electrode ends disperses lithium-ion movement, limits metal deposition, and preserves battery input/output properties.

A dual-additive electrolyte forms a stable cathode film to cut discharge resistance, suppress gas generation, and improve high-temperature storage.

A two-stage coolant reservoir keeps vehicle battery cells submerged despite tight packaging, improving temperature uniformity and expansion handling.

Soluble sulfur and tungsten surface chemistry help nickel-rich cathodes keep high first charge capacity while improving cycle durability.

An elastic composite pad adds Joule heating between battery cells to maintain low-temperature performance while buffering swelling.

Dual channel paths and a U-shaped deflecting chamber deliver uniform battery heat exchange from one end while lowering pressure drop.

Switchable solenoid valves and stacked cooling plates balance battery heat dissipation and thermal insulation to cut energy use.

Extruded cooling fins between cylindrical cells improve heat conduction in replaceable batteries without fluid lines or added cooling devices.

Dielectrically heatable materials absorb electromagnetic waves to warm electrolytes and sustain ionic conductivity in cold-weather cells.

Carbon-coated hBN nanosheets in a phase-inversion polymer separator improve porosity, electrolyte wettability, and thermal stability for Li-ion cells.

An oblique buffer plate forms airflow channels while elastically absorbing battery swelling force to protect pack stability and battery life.

Individually sealed heat pipes built into the battery module surface improve heat transfer while cutting weight, assembly complexity, and leak risk.

A horizontal battery module layout with a heat exchange member cuts case temperature influence and improves thermal control response.

Controlled pH and low-pressure hydrothermal synthesis improves LiFePO4 crystallinity, boosting lithium diffusion and battery output at lower cost.

Multi-element Fe/Ni, Q, and Al/B doping stabilizes oxygen holes in layered oxide cathodes, improving sodium-ion capacity and cycle efficiency.

A bent intake duct stays coupled to the battery pack top plate in a collision, keeping the intake port covered and high-voltage units protected.

A split fitting with retention tabs and compression sealing lets battery pack coolant connections be serviced externally without pack disassembly.

Mixing secondary and single high-nickel cathode particles limits internal cracking, improving cycle life and energy density in rechargeable batteries.

Through holes in a laminate battery pouch improve gas discharge, while resin-filled openings block moisture and maintain strength.

A support plate moves battery cooling joints outside the casing to resist vibration, prevent leakage, and preserve cooling efficiency.

A dual-binder electrode layer cuts battery resistance while preserving adhesion and capacity during high-temperature storage.

A PVdF-inorganic coating forms a node-filament network that improves electrode adhesion, ion flow, electrolyte retention, and heat resistance.

Localized outgassing detection keeps the nearest vent closed and opens farther vents so hot battery gases cool inside the housing before exit.

A dual silicon-carbon anode layer uses magnesium doping and carbon coating to limit expansion cracks while improving fast charge and cycle life.

Bent pouch-cell tab terminals and backer-supported welding improve electrical contact and structural integrity in traction battery pack assembly.

Thermal barriers in battery pack venting passageways shield enclosure structures and block heat transfer between cell stacks during thermal events.

Grouped tab terminals are welded and heat-staked to busbar sections to simplify battery pack joining while improving connection strength.

Heat transfer delay spaces, vent holes, and a heat block sheet slow thermal runaway propagation and contain flames in battery modules.

Welded tab terminals and heat-staked sense leads simplify battery pack connections while improving structural integrity and voltage monitoring.

Inclined air guide hoods and hollow support layers divert exhaust from lower units so upper energy storage inlets avoid hot air recirculation.

An iron-phosphate coating helps high-nickel cathodes overcome poor rate capability while preserving energy density and low material cost.

Rotatable crossflow fans and air chambers direct cooling air to specific BBU modules, improving rack cooling coverage while reducing energy use.

An integrated cooler and sealed cell connector uses insulating heat-dissipation medium to remove busbar heat and lower thermal runaway risk.

A molded holder with resin-insulator-resin partition walls keeps adjacent cells separated under abnormal heat and helps contain thermal runaway.

A larger inner cavity than the communication cavity cuts coolant pressure loss and improves battery pack cooling efficiency.