Electrode Rolling/Calendering TRIZ Cases

A secondary battery electrode uses a concave convex coating film to increase active material surface area for better component contact.

Ultrasonic vibration during calendering reduces porosity and mechanical stress in battery electrodes, improving ion transport.

A rolling roll cleaning apparatus uses an aqueous solution, air spray, heating, and a scraper to remove contaminants from electrode surfaces.

Selective heating of non-coated electrode portions minimizes elongation differences, preventing bending and ensuring uniform manufacturing precision.

Patterned binder coating prevents powder slipping during high-speed molding, ensuring uniform basis weight and low electric resistance.

A lithium ion secondary battery with a gradient electrode structure that ensures uniform charge-discharge reactions across the mixture layer thickness.

Local quality principle positions highest resistance within fifteen percent of center to suppress lithium deposition during low temperature high rate charging.

Expanded graphite withstands lithium iron phosphate expansion to preserve electric conduction paths, reducing reaction resistance at low state of charge.

A continuous manufacturing method produces non-reinforced electrochemical cell components using sequential non-solvent and pore-forming baths.

A composite lithium strip uses a removable substrate to strengthen fragile anode material, preventing breakage during electrode lamination.

Integrated metal foil anodes merge current collector and active alloying material into a single multiphase structure.

Optimized electrolyte composition reduces burr formation during lithium ion battery electrode clipping, preventing short circuits.

Coating negative electrode paste with ceramic particles having an aspect ratio of 1.5 to 20 improves layer peel strength and hardness.

Segmenting the electrode into distinct layers resolves dispersion uniformity and adhesion issues while maintaining manufacturing simplicity.

Porous carbon particles with 50-95% porosity maintain ion mobility during calendering, increasing active material layer thickness.

Reducing graphene oxide creates conductive networks that increase active material density and discharge capacity.

Segmented cleaning members with angled grain patterns remove contaminants from electrode press rolls, preventing secondary contamination and defects.

Granulated coating and heated roller annealing prevent binder migration, improving cycle durability without reducing drying productivity.

A fast charge graphite anode with a lattice constant of 0.3374 nm enables rapid lithium ion diffusion.

Detect micro-leaks in bipolar structures before assembly by circulating fluid through separated compartments and measuring the resulting pressure gradient.

An automated battery grid pasting system adjusts paste volume via sensor feedback to resolve precision versus complexity trade-offs.

A bipolar electrode incorporates a density adjusting additive into the negative electrode layer to balance compressive strength across the collector.

Cutouts at the electrode tab base release strain during compression, preventing cracks and maintaining low electric resistance in high-density batteries.

A bilayer electrode uses laser-ablated craters in the first active material layer to mechanically anchor the second layer during manufacturing.

Electrolytic copper foil adopts (200) crystal orientation to raise tensile strength, preventing tears during battery cycling.

A mixture sheet forming apparatus crushes dry electrode aggregates before roll compression.

Alternating orientation portions prevent particle misorientation during rolling, enhancing ion movability and cycle life.

A segmented positive temperature coefficient resistor layer structure for solid-state battery electrodes.

A non-aqueous electrolyte with LiFSI and fluorinated benzene forms a stable solid SEI film on the negative electrode.

Negative electrode active material with specific graphite crystalline size and rubber-based binding particle diameter optimizes electrode structure.

VPSPEED spray deposition builds thick binder-free cathode films, eliminating organic binders that reduce power density in lithium ion batteries.

Electrospinning apparatus deposits fibers uniformly on coated electrode portions, suppressing internal stress and preventing insulation failures during winding.

Segmented insulating films wrap electrodes to eliminate material waste from punching while maintaining precise positioning.

A metallic carrier incorporates a perpendicular structure to increase rigidity and prevent bending during battery electrode manufacturing.

Tapered electrode edges and inert coatings reduce edge activity to prevent dendrite growth and stress on protective layers.

Doping the anode with a lithium-rich compound stabilizes the crystal lattice structure, preventing thermal runaway in high nickel ternary batteries.

Controlled graphite particle orientation and size distribution reduce irreversible capacity while maintaining high-rate charging performance.

Hot-laminated composite flat sheet enables efficient winding of button lithium ion battery cells, eliminating misalignment and burr generation risks.

A roll map generation method applies coordinate inversion to transfer defect data between electrode rolls during battery manufacturing rewinding.

A flexible battery uses coincident contraction and extension patterns on its exterior material and electrode assembly to maintain structural integrity during bending.

Granular powder lamination eliminates solvent drying defects like pinholes and cracks in secondary battery electrodes.

A polymer gel film forms on the electrode surface to reduce interfacial resistance in lithium ion batteries.

Pre-slitting non-coated foil areas prevents wrinkle intensification during slitting, reducing tab defects and maintaining strip stability.

A lithium battery cathode uses controlled pressed ratio and electrode density to maintain high capacity while resolving thermal stability trade-offs.

Zirconium-doped lithium cobalt oxide and diethyl carbonate inhibit electrolyte decomposition to reduce internal resistance.

Suction filtration removes solvent through a porous current collector, enabling thick electrodes with high active material load and improved conductivity.

Spaced rollers apply progressive pressure to prevent cracks during electrode manufacturing.

Optimized pore volume prevents particle cracking during pressing, resolving the contradiction between battery capacity and chemical stability.

Controlled solvent levels resolve peeling complexity and time loss by facilitating uniform active material removal from substrates.