Positive Electrodes TRIZ Cases

A CN-terminal compound and polysaccharide binder suppress metal elution in battery electrodes, improving durability under high-voltage cycling.

Uniform particle growth using flux and dopant enables single-crystal cathodes with less agglomeration, lower processing cost, and longer battery life.

An aluminum-containing surface coating helps high-nickel, near-cobalt-free cathodes boost energy density while suppressing side reactions and safety loss.

Molybdenum surface modification lowers cathode surface resistance and manganese elution, improving lithium secondary battery life.

A DRX-layered-spinel Li1+xMn2O4 cathode uses ball milling and heat treatment to raise capacity, cycle life, and high-temperature stability.

A urea-based additive forms a cathode passivation layer that suppresses oxidation above 4.4 V and improves NCM battery cycle life.

Dry mixing pyrogenic zirconium oxides onto NMC cathodes improves coating uniformity, suppresses degradation, and extends battery cycle life.

LiF coating helps overlithiated lithium manganese cathodes develop the right phases at lower calcination temperature while improving conductivity and stability.

Dry mixing pyrogenic zirconia into lithium transition metal oxide precursors creates uniform protective particles that improve cathode cycling stability.

Boron- or tungsten-coated cathode additives improve irreversible capacity balance while preventing slurry gelation and gas generation.

Separated nucleation and growth pH control produces uniform nickel composite hydroxide particles that lower cathode resistance and raise battery output.

Gradient-doped LFP shell layers and controlled cracks improve lithium-ion transport, capacity use, and battery rate performance.

Br− and Cl− electrolyte additives promote interhalogen formation in aqueous iodine batteries, cutting polarization while preserving high energy density.

Selective oxide coating on surface primary particles raises short-circuit resistance while preserving internal conductivity in secondary batteries.

A three-size nickel-rich cathode particle mix balances capacity with cycle stability while reducing resistance and gas generation.

A low-hardness compound between multiple active materials enables higher rolling compaction while limiting cracks and suppressing battery resistance.

A core-shell cathode uses waste-battery leachate directly to recover Ni, Co, and Mn while cutting process complexity, cost, and impurity risk.

Nano cobalt precursors enable lower-temperature solid-phase firing to form submicron lithium-cobalt oxide cathode particles with high crystallinity.

A bimodal cathode with coated small particles raises volumetric energy density while reducing side reactions and metal elution.

Balances carbon dispersion and water solubility while limiting carbonate electrolyte dissolution in battery electrode compositions.

A vinylidene fluoride copolymer binder improves adhesion between the cathode active material layer and current collector, stabilizing solid-state battery cycling.

A tuned cathode layer resistance profile and limited low-resistance carbon improve heat resistance, fast cycling, peel strength, and impedance.

Controlling Li-O interlayer spacing in a nickel-rich cathode helps lithium batteries retain capacity and stability at high voltage and temperature.

Mn-rich Li-ion cathode composition balances high energy density with cycle life by tuning particle size, surface area, and pressed density.

A layered cathode with different Ni-content active materials reduces thick-film polarization and improves cycle life and high-temperature stability.

A silver sulfide coating suppresses silver dissolution in silver-oxide cathodes, improving cycle life and removing the need for cellophane separators.

An inorganic particle aggregate near the collector buffers cathode volume change, reducing cracking and improving cycle life.

Laser-induced forward transfer forms cathode voxels with controlled solvent dilution, improving surface geometry, density, and deposition reproducibility.

Mixed large and small LFP particles in a dry PTFE-bound cathode raise active-material loading while preserving current-collector adhesion.

A layered Li-Mn-rich cathode balances O-redox capacity to limit voltage decay, preserve energy density, and improve battery cycle life.

An unsaturated sulfonate electrolyte additive forms a stable SEI, suppressing cathode side reactions, gas generation, and battery aging.

A fluorinated amide copolymer layer with inorganic particles helps secondary battery electrodes retain capacity and resist impedance rise after heat and cycling.

Acidic pH control and ferrous-to-ferric oxidation form regular octahedral iron phosphate without strict temperature control, lowering cost and energy use.

Controlled washing removes lithium by-products from high-nickel cathode particles, cutting gas generation while preserving lattice stability and life.

Controlled washing of blended high-nickel cathode particles removes surface lithium by-products without damage, reducing gas generation and extending battery life.

Interface coating layers mechanically stabilize solid-state battery cathodes to widen voltage windows and suppress interfacial decomposition.

Controlled boron, zirconium, and aluminum doping stabilizes ternary cathodes against thermal expansion and resistance growth at high temperature.

Manganese-doped iron phosphate improves low-temperature LFP conductivity and simplifies precursor precipitation by avoiding alkali pH adjustment.

A bimodal cathode blend uses coarse nickel-based and fine cobalt-free oxides to cut cobalt cost while preserving stability and electrochemical performance.

Bimodal high-nickel cathode particles with rock salt surface layers raise roll-pressing density while reducing cracks, side reactions, and heat-related degradation.

Recovered aluminum impurities are turned into coating or doping precursors, improving electrode purity and electrochemical performance.

A tuned active-material, binder, and conductive-agent ratio improves cathode-layer adhesion, conductivity, and cycle retention in Li-ion cells.

Using multiple lithium alloys in the positive electrode offsets SEI lithium loss and limits cycle-related capacity fade in lithium-ion batteries.

Replacing water in conjugated diene latex with a non-aqueous solvent enables low-moisture cathode insulating coatings that help prevent battery short circuits.

A fluorine-boron surface coating suppresses transition-metal elution in Li-rich manganese cathodes, improving capacity, rate performance, and stability.

A thiol compound with electron-withdrawing groups captures dissolved metal ions and limits negative-electrode deposition to preserve battery properties.

A fluorine-boron coating on overlithiated lithium manganese oxide suppresses metal elution and side reactions, improving capacity and rate performance.