Positive Electrodes TRIZ Cases

Controlled crystallite size distribution in a high-Ni layered cathode improves initial efficiency and lowers low-state DC resistance in lithium batteries.

A metal-oxide and carbon shell on dual-size cathode cores suppresses side reactions, improving thermal stability and cycle life.

A two-liquid positive electrode slurry controls viscosity to improve irreversible additive dispersion, reduce loss, and suppress side reactions.

Selective precipitation purifies recycled battery metals into cathode active material while preserving composition consistency and high discharge capacity.

A polymer shell isolates a lithium-rich core from air, preserving lithium replenishment while easing battery additive storage and production.

This electrode plate combines fine and coarse lithium iron phosphate particles to improve dynamic and cycle performance.

Aluminum zinc oxide coating suppresses phase transition in lithium metal oxide cathodes, reducing irreversible capacity loss during cycling.

Zirconium and niobium additives in lithium transition metal composite oxide reduce I-V resistance for improved output characteristics.

Vacuum drying the coated particle to under 319 ppm moisture prevents sulfide electrolyte deterioration and maintains high conductivity.

Segmented perovskite films create a thermal expansion gradient that prevents cracking in solid oxide fuel cell electrodes during cycling.

A positive electrode mix layer with dual-peak pore distribution enhances ionic conductivity in lithium transition metal oxide batteries.

A lithium transition metal oxide positive electrode active material with a sintered Group IV or V compound and an attached Group VI compound.

Ion-conductive coating layer on overlithiated layered oxide cathode active material suppresses manganese elution and voltage decay during cycling.

Lithium nickel cobalt metal oxide cathode active material doped with beryllium, magnesium, and calcium to achieve specific capacities of 180 to 215 mAh/g.

Layered hexagonal crystal lithium nickel manganese composite oxide particles with controlled elemental composition and crystallite orientation.

Positive electrode specific surface area exceeds negative electrode to optimize electrolyte impregnation in rechargeable lithium batteries.

Sub-35nm lithium phosphate particles on carbon supports reduce resistance, resolving the trade-off between manufacturing precision and battery reliability.

Layered positive electrode active material with controlled particle size and pore distribution enhances lithium ion diffusion kinetics.

Fluoride and phosphate coatings on lithium manganese excess cathodes reduce irreversible capacity and prevent manganese elution during cycling.

A positive electrode active material uses a composite particle structure with specific nickel and manganese mole fractions in its surface layers.

Infusing lithium phosphate into nickel-rich NMC cathode particles buffers internal strain, suppressing particle cracking and maintaining structural integrity.

A core-shell positive electrode active material combines high-nickel cores with lower-nickel shells to balance energy density and structural stability.

Grafting acrylonitrile onto polyvinyl alcohol creates a binder that prevents decomposition during high voltage cycling, maintaining battery capacity.

Phosphorus surface layer on lithium nickel-based oxides reduces residual lithium to improve capacity and cycle-life stability.

A one-pot synthesis method forms lithium niobate coatings on spinel cathodes using multi-carboxylic acid digestion.

A sodium nickel manganese tungsten battery uses a stable non-aqueous electrolyte to enable reversible charge and discharge cycles.

A carbonaceous film with controlled Raman ratios coats central particles to ensure uniform electron conductivity across the cathode surface.

Segmenting cathode materials into composite layers prevents cracking during pressing, resolving the trade-off between high energy density and thermal stability.

A niobium solid solution layer and lithium niobate coating modify the surface of high-nickel cathode particles.

Firing removes water of crystallization from a hydrothermally synthesized cathode material, preventing gas generation that degrades cycle life.

A core-shell lithium transition metal oxide uses a boron lithium oxide coating to resolve the trade-off between high energy density and cycle life degradation.

Encapsulating sulfur particles with a conductive sulfonated elastomer composite prevents polysulfide dissolution while maintaining high energy density.

Polycyclic aromatic hydrocarbon monomers in the dispersion resin reduce paste viscosity, enabling easy application while preserving battery performance.

A positive electrode active material uses mixed lithium composite oxide particles to increase battery capacity.

A crystallization process controls pH during nucleation and growth to produce nickel cobalt aluminum composite hydroxide with uniform particle diameter.

Double shell LiF and hydrophobic polymer layers reduce direct current resistance in water-based lithium ion battery cathodes.

Polymer encapsulation of selenium cathode particles prevents polyselenide dissolution and mitigates dendrite formation in alkali metal batteries.

An imidazole compound mediates slurry viscosity, enabling high solid content concentrations that improve low-temperature output and cycle life.

An impurity layer between core and shell regions inhibits interdiffusion, while graphene enhances conductivity to improve energy density and cycle reliability.

Optimized hexagonal lithium nickel complex oxide structure resolves the contradiction between high theoretical capacity and low irreversible energy loss.

A fluorine-containing positive electrode active material stabilizes the chemical skeleton within a specialized electrolyte solution.

Inorganic phosphate compound coating on positive electrodes enhances electron conductivity and forms stable low-resistance films.

A polyimide nanofilm coating on positive electrode active material enhances lithium ion migration and electron conductivity.

A positive electrode active material uses a coupling agent to treat core particles and form a protective surface layer.

Composite cathode material combines Li2MnO3 structural stability with active nickel to resolve trade-offs between cycle life and manufacturing cost.

Oxidizing agents stabilize nickel ions during hydrothermal relithiation, preventing dissolution and eliminating costly sintering steps for recycled cathodes.

A polyethylene glycol-based polymer in the nonaqueous electrolyte fills cracks in nickel-rich cathode particles to suppress carbon dioxide generation.