Positive Electrodes TRIZ Cases

Surface boron deposition on NMC primary particles boosts output and capacity while suppressing positive electrode paste gelation.

Dinitrile and diisocyanate electrolyte additives protect Li-rich cathode surfaces, limiting side reactions and preserving capacity.

A fluorinated vinylene ether additive polymerizes on the negative electrode to suppress side reactions and maintain discharge capacity over cycles.

A controlled Ti, Zr, Ta, Nb, or Al surface coating suppresses high-resistance interfacial layers in solid-state batteries.

Precise pH staging in hydrothermal synthesis improves LiFePO4 cathode purity and crystal stability for better battery cycling and reliability.

A reduced carbon nanotube oxide shell improves cathode slurry dispersion and conductivity while lowering volume resistance in lithium secondary batteries.

An ion-conductive surface phase contains carbon-related gas generation in Ni-based positive electrode material while preserving capacity and cycle life.

Heteroelement-doped porous carbon with a transition metal catalyst boosts lithium-sulfur redox kinetics and suppresses polysulfide elution.

Using silver or silver sulfide in a sulfur cathode boosts conductivity with low loading, keeping Li-S electrodes thin and ion transport intact.

Hydroxyphenyl or disulfide acrylic binders adsorb lithium polysulfides, limiting sulfur loss and improving lithium-sulfur electrode cycle stability.

Two passivating agents form protective electrode layers that curb oxidation and decomposition, extending lithium-ion battery cycle life.

Mn-rich grain boundaries in secondary cathode particles improve high-voltage stability, packing density, and cycle-life in lithium batteries.

An O6-type lithium-rich cathode uses Na-Li ion exchange to raise capacity, avoid spinel-related aging, and remove cobalt from Li-ion cells.

Porous MOFs in a nickel-based positive electrode adsorb thermal runaway gases, lowering explosion risk under short-circuit and heat exposure.

A halogen-containing positive electrode layer suppresses heat and fire risk in non-aqueous secondary batteries without sacrificing energy density.

A nitrile-basic copolymer binder keeps high-nickel cathode slurry stable against pH-driven thickening while preserving battery output.

An aging hold during cathode cooling limits moisture uptake, stabilizing high-nickel active material and improving battery capacity and resistance.

An O6-type Li-rich cathode uses Na-Li ion exchange to raise capacity, suppress spinel formation, and reduce cobalt dependence.

A heat-activated isocyanate PVDF binder boosts electrode adhesion to current collectors, improving battery cycle life without storage gelling.

CO2 and water vapor form a lithium carbonate layer on nickel-based cathodes, reducing interfacial resistance without complex coating equipment.

A fluorinated oxalate complex anion with nitrate anions forms a stable lithium surface film that suppresses dendrites and improves cycle retention.

A porous-core, dense-shell cathode precursor limits cracking and gas generation while improving press density in high-Ni lithium batteries.

Rectangular plate-like lithium cobaltate particles improve cathode compaction density and resist high-voltage phase change for longer cycle life.

Flake graphite and amorphous carbon help single-particle high-nickel cathodes resist pressing stress, maintain conductivity, and extend battery life.

Radially arranged primary particles in a nickel-based cathode reduce diffusion resistance and cracking, improving rate capability and cycle life.

Regular lithium cobaltate particle stacking improves cathode compaction density and conductivity, helping batteries cycle stably at high voltage.

A porous buffer layer and 3D core-shell cathode structure reduce rolling damage while improving electrolyte contact, rate capability, and cycle life.

Cells with different low-temperature discharge plateaus are assigned to warmer and colder pack zones to improve cold-weather energy retention.

Recessed niobium-titanium oxide particles retain electrolyte and speed lithium diffusion, enabling fast charging without sacrificing battery energy density.

Shaped niobium oxide particles improve electrolyte retention and lithium-ion diffusion, raising battery energy density without sacrificing fast-charge life.

A phosphorus-based cathode coating limits sulfide electrolyte degradation while keeping low resistance and high-voltage durability in all-solid-state batteries.

Flake graphite and amorphous carbon help lithium battery cathodes resist pressing stress, limit cracking, and retain capacity over cycling.

Flash drying a coating slurry keeps the NiO interlayer at 0.9 nm or less, reducing battery resistance while preserving lithium-ion migration.

A phosphorus-based cathode coating limits sulfide electrolyte degradation while lowering interfacial resistance in all-solid-state batteries.

A difluorophosphite electrolyte additive stabilizes nickel-rich high-voltage cathodes, cutting gas generation, swelling, and capacity loss.

Porous hollow carbon tubes create extra ion pathways in thick, dense electrodes, improving diffusion and charge-discharge speed without sacrificing energy density.

Waste cathode active material is ground, spray-dried, and heat-treated to cut battery material cost and pollution while preserving electrochemical performance.

Boron or tungsten surface treatment on mixed single and aggregated cathode particles cuts high-temperature storage gas while preserving flow and packing.

Dual doping with phosphorus and Nb, W, or Sb stabilizes spinel cathodes at high voltage and temperature, improving battery storage and cycling life.

Controlled NMP oil absorption and near-spherical cathode powder improve binder dispersion, coatability, and energy density in Li-ion electrodes.

An auxiliary electrode pre-lithiates the cell inside battery packaging to offset first-cycle lithium loss and improve Li-ion capacity retention.

A formula-based nonaqueous electrolyte limits negative-electrode metal deposition while preserving cycle output in high-nickel batteries.

Coated or doped small cathode particles resist crushing during pressing, preserving bimodal packing for higher lithium-ion cell density and capacity.

A brookite TiO2 and LiTi surface coating lowers low-temperature reaction resistance and limits cycling-related resistance growth in Li-ion batteries.

A resin-expanding cathode layer blocks the conductive path during overcharge, improving lithium battery stability without sacrificing capacity.

A MOF-derived core-shell porous carbon boosts conductivity and traps polysulfides, improving lithium-sulfur battery cycle stability.

Internal voids and through-holes in cathode secondary particles improve electrolyte infiltration, stress relief, and high-rate discharge.

A copolymer binder balances aromatic vinyl content and iodine value to suppress aggregation, lower internal resistance, and raise electrode density.

Radially aligned nickel-based cathode particles with hetero-element compounds between primary grains suppress cracking, lower resistance, and extend battery life.

A composite nitrile-containing binder balances cathode paste stability, layer peel strength, and battery output in non-aqueous secondary cells.