Electrode Rolling/Calendering TRIZ Cases

Partially embedding spherical sodium iron phosphate pyrophosphate particles raises cathode compaction, lowers resistance, and helps prevent winding fractures.

Real-time pole piece thickness and rolling speed feedback adjust cold press pressure to reduce compaction density errors in battery electrodes.

Microparticulate non-fibrillizable binders improve dry electrode film adhesion, cohesion, and capacity while reducing defects and resistance.

A fiberized dry powder route uses pre-forming, multi-roller calendaring, and lamination to make uniform battery electrodes without drying.

Movable masks keep lead-attachment regions uncoated during dry powder electrode deposition, cutting drying energy and contact resistance.

An adhesive film peels the protective layer after cutting lithium metal electrodes, reducing contamination and damage during stack manufacturing.

A solvent-free cathode layer uses under 1 wt.% fibrillated PTFE to maintain binding while lowering electrical and ionic resistance.

Crown rolls with a resin-coated curved profile suppress lateral tape flow and prevent wrinkles during electrode lamination feeding.

Partially embedding spherical NaFPP particles into the current collector raises compacted density while limiting winding cracks and resistance.

A width-varying squeegee narrows end gaps to suppress edge buildup and keep electrode mixture layer basis weight uniform.

Low-shear PTFE in a dry electrode mixture sheet improves stretchability while preserving thickness-direction strength and productivity.

A two-layer binder gradient membrane preserves ionic conductivity, boosts strength, and limits side reactions at the negative electrode.

CO2 snow blasting strips flexible electrode coatings from substrates, enabling lower-expenditure and cleaner material recovery for battery recycling.

A tuned porosity-to-density ratio in a graphite negative electrode sheet improves lithium-ion transport, lowers resistance, and suppresses dendrites.

Ox-VGCF support enables solvent-free dry electrode films with uniform PTFE dispersion, fewer coating defects, and stronger conductive networks.

Controlled drying, baking, and bending create electrode-layer cracks that improve electrolyte penetration and raise secondary battery capacity.

Magnetically oriented carbon particles and laser-formed passages improve ion transport, cut resistance, and support thicker battery electrodes.

Coating solid electrolyte onto active material evens shear during dry rolling, enabling uniform electrode films with less binder.

Negative electrode density, surface loading, thickness growth, and intercalation voltage are tuned to enable fast charging with lower lithium plating risk.

A dual-metal cathode current collector matches the tab bonding region to cut resistance mismatch, heat generation, and peeling in lithium batteries.

Dancer rollers and driven pull rollers stabilize web tension so powdered dry film can be applied uniformly in continuous coating.

A metal lithium transition layer improves adhesion, lowers resistance, and helps a lithium-carbon belt suppress bumps, volume change, and dendrites.

Mn-Mg aluminum alloy composition and rolling improve battery case strength at high temperature while preserving formability and weldability.

Roll-map defect data is calibrated against sensed datum points on unwound electrode sheets to isolate defects and reduce battery material waste.

Solid metal reinforcement protects foam current collectors during winding, improving bending strength and preserving battery contact.

A four-roller layout creates two independent paths so two electrode plates can be double rolled in parallel with better thickness consistency.

Recessed roller sections create tab clearance during electrode plate rolling, reducing crushing, wrinkling, and later fracture risk.

A graded oxide-carbon coating protects lithium silicate silicon particles from erosion while preserving conductivity and battery capacity retention.

Heating at least one compression roll above 40°C lowers binder viscosity, improving electrode spreadability and liquid retainability.

A fed metal plate spreads roller pressure across laminated electrodes, protecting ridge portions and separators while preserving layer adhesion.

Separate binder and conduction-aid coating on different particle sizes improves electrode-sheet conductivity and tensile strength.

Annealing aluminum foil before prelithiation refines grain boundaries, speeds lithium diffusion, and improves initial efficiency and cycling.

Ultrasonic viscosity control helps lead-acid paste coat grids uniformly without de-watering or damaging electrochemical properties.

Separately coating binder and conduction aid on active particles preserves conductive pathways while improving electrode sheet tensile strength.

A flexible connection sheet between electrode webs absorbs tension, reduces fracture risk, and helps correct meandering in roll-to-roll joining.

Automatic cutting, taping, and separate winding remove defective electrode plates without stopping continuous production.

A fluorinated lubricant forms a stable LiF layer during lithium rolling, preventing adhesion, dendrites, and harmful side reactions.

Brush and vacuum removal of a sacrificial foil layer preserves uniform calendering pressure while limiting particle deposition on active material.

A variable-thickness rubber press roll evens current collector stretching to reduce wrinkles, fractures, and electrode sheet defects.

Specific electrolyte additives build a layered SEI that suppresses interface reactions, limits impedance rise, and improves battery safety.

A hydrophobic edge coating confines insulating solution at the active layer boundary, improving electrode thickness uniformity and stacking flatness.

Local diameter changes at boundary regions equalize elongation between coated and uncoated areas, reducing electrode sheet wrinkles.

Differential roll diameters stretch uncoated and boundary regions evenly, reducing electrode sheet wrinkles, breakage, and tab-forming issues.

Independent fixing, marking, and cutting control improves roll positioning accuracy and sampling reliability in secondary battery production.

Localized pressing and adjustable unloading angle suppress wrinkles in uncoated electrode regions during rolling, improving cell quality and safety.

Separate pressing and screen-printed coating let bipolar electrodes tune positive and negative layer densities for higher energy density and ion diffusivity.

Infrared assemblies on both sides of the drying channel speed electrode sheet drying while reducing thermal stress, warping, cracking, and roller sticking.

Delayed rubber-roll pressing helps extend electrode sheet uncoated portions uniformly while reducing roll deformation and breakage risk.

Controlling first-layer surface roughness lets slurry form strong anchor portions while limiting bubbles in all-solid-state battery laminates.

Successive screen printing and compression steps create layered electrode porosity, cutting drying delays while improving electrolyte absorption control.

Blind-hole metal electrodes filled with solid polymer electrolyte improve non-liquid electrolyte contact, lowering resistance and extending cycle life.

Current collector foil thickness, rigidity, and lamination steer silicon anode expansion upward to preserve contact and extend cycle life.

A silicon negative electrode uses a styrene butadiene rubber primer layer to enhance adhesive strength and flexibility.