Electrode Rolling/Calendering TRIZ Cases

A detachable step ring changes roll diameter across coated and uncoated regions to prevent wrinkles and reduce roll swaps for new sheet sizes.

Localized induction heating at calendar roller ends offsets thermal crowning and keeps electrode coating thickness uniform.

A support-coated current collector edge improves welding reliability and mechanical stability while preserving lithium-ion cell energy density.

An external electric field deforms PVDF binder chains to tune electrode porosity during calendering, improving wetting and reducing lithium plating.

Asymmetric roll temperatures strengthen electrode-to-foil bonding while preventing electrode-layer peeling and material buildup on rolls.

Multi-stage roller compression densifies wet electrode powder while keeping the active layer flat and conductive on the base film.

Dry powder electrode processing uses a polyamide binder that forms fibrils, cutting drying energy while improving anode stability and capacity.

Roll pressing enables high-solid lithium-sulfur cathode slurry coating, cutting drying time while improving adhesion and surface smoothness.

High-temperature calcination creates stronger mono-grain cathode particles that pack densely and resist cracking, improving cycle life.

A hand-operated locking and tightening mechanism enables quick blade changes in power tools without screwdrivers or wrenches.

A pre-pressed active layer bonded to an adhesive-coated current collector raises packing ratio while preventing collector creases and breakage.

Current collector foil thickness, strength, and lamination steer silicon anode swelling into the z-direction to preserve contact and cycle life.

VDF-based copolymers improve dry electrode adhesion to metal current collectors while preserving electrolyte stability and low-temperature film forming.

Alternating stock guides and squeegee rolls level granulated particles, cut waste, and prevent downstream rolling defects.

A dry self-standing active layer covers metal lead side surfaces to avoid solvent use while improving lithium battery energy density and capacity.

A two-part porosity gradient and cooler pressure rolling enable thick Li-ion electrodes to raise areal capacity without sacrificing rate performance.

Intersecting transport and deposition belts compact electrode material continuously to improve mass uniformity, density control, and productivity.

Multiple projecting portions are formed and leveled to improve widthwise mass distribution in wide electrode sheet manufacturing.

Automatic defect detection opens calender rollers before flawed electrode tape reaches the gap, preventing damage and avoiding manual stoppages.

A dual-layer granular cathode uses different conductive particle shapes to keep conductivity high while improving surface uniformity and solid electrolyte adhesion.

CVD or PACVD diamond-like coatings harden nip and calender rollers, resisting contaminants and reducing pinholes, fatigue, and film defects.

A two-layer electrode uses a denser inner layer and a more porous outer layer to improve lithium-ion transport, fast charging, and cycling safety.

Plate-like stock guides confine granulated particles during squeegee leveling, improving edge smoothness, layer strength, and yield.

A temporary label on the uncoated electrode portion evens roll-press stress, reducing wrinkles while maintaining coated-part density.

A porous heat-resistant electrode layer balances adhesion and ion flow to limit internal resistance and temperature rise during internal shorts.

Level and weight sensing regulate gravity-fed powder into a calender nip, keeping electrode track thickness and width uniform.

Variable-speed heated calendering keeps lithium semi-solid to produce wide 1-20 μm foil with uniform thickness and less material waste.

Pre-winding surplus tab offset and targeted embossing align cathode tabs after winding, reducing data processing and improving cell yield.

A stepped active material thickness profile reduces pressure imbalance during electrode compression, helping protect the substrate and improve assembly yield.

Low-shear high-temperature dry electrode processing preserves binder fibrilization, limits active material micronization, and improves film strength.

Fused separator foil cutouts form a pocket that holds the cathode in place, reducing slip, short-circuit risk, and assembly cost.

A stepped active-material thickness layout enables multi-row electrode compression while reducing elongation mismatch damage at coated boundaries.

Laser pyrolysis forms SiGe-core, Si-shell nanoparticles that buffer silicon swelling and improve lithium-ion anode capacity retention.

Current collector particles replace plate collectors to improve active material loading, reduce resistance, and simplify lithium battery production.

Fibrillatable PTFE replaces solvent-based binders in nickel-lithium cathode mixtures, stabilizing viscosity and protecting solid-state electrolytes.

A 3D conductive network base replaces excess conductive agent, preserving conductivity while increasing active material loading and energy density.

Embedded electrical heaters, sensors, and air channels keep roller temperature uniform, reducing thermal expansion and film thickness variation.

Metal nitrogen compounds in a conductive anode network raise lithium battery energy density while avoiding lithium metal dendrite risks.

A graded oxide film on cathode particles keeps resistance low while suppressing short-circuit current and heat during internal shorts.

Hot-pressed composite solid electrolyte membranes bond electrode sheets, easing Li-ion battery stacking while reducing separator wrinkles and dendrite risk.

A 3D metal fiber network spreads lithium deposition more evenly to suppress dendrites, cut dead lithium, and extend battery life.

Large particles above 20 μm improve PTFE fibrillation in solvent-free battery mixture sheets, boosting strength, toughness, and lowering resistance.

Plasma surface activation bonds electrode and separator layers at room temperature, cutting lamination energy use and adhesion-layer cost.

Dry PTFE fibrillation binds sulfide solid electrolytes into a self-supporting sheet, avoiding solvent damage and preserving ion conductivity.

Ultrafine fibrillated binder fibers at 100 nm or less improve ion conduction, cut moisture dependence, and keep battery mixture strength.

Controlled shear stress and roller settings smooth dry battery electrodes, lowering interfacial resistance and improving pouch-cell performance.

Hot-pressed composite solid electrolyte membranes pre-bond electrode sheets, simplifying stacking while reducing separator wrinkles and dendrite risk.

A harder ground layer under the DLC coating limits roll wear after peeling, reducing particle contamination on conveyed electrode sheets.

Fibrous carbon networks and fibrillized PTFE enable uniform shear stress in dry cathode films, preventing wrinkles and lowering roughness.