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.