Positive Electrodes TRIZ Cases

Controlled XRD peak splitting and stepwise sintering balance particle strength and lithium-ion diffusion to improve battery cycle life.

An aluminum-coated low-cobalt nickel-manganese cathode preserves energy density and cycle life while lowering cobalt cost in rechargeable lithium batteries.

Aluminium surface coating and cobalt grain-boundary coating help high-nickel cathodes retain cycle life while limiting gas generation.

Combining two cathode active materials with controlled particle size limits electrode swelling and lowers Li-ion diffusion impedance.

Low-swelling nitrile copolymer and 100-200 m2/g carbon help positive electrodes retain adhesion and limit resistance rise at 60°C.

Silver or silver sulfide in a sulfur cathode boosts conductivity without thicker carbon loading, preserving ion diffusion in Li-S batteries.

Functional-group copolymer binders improve electrode adhesion and trap polysulfides to reduce sulfur loss and extend Li-S battery cycling.

Li-excess disordered rocksalt cathodes use lower-valent transition metals to sustain 3D Li transport, high capacity, and long cycle life.

A sulfate additive forms an inorganic SEI film to suppress battery gassing, extend service life, and preserve energy density.

Blending polyanionic and ternary cathode materials narrows voltage plateau gaps, improving capacity utilization and cycle life in secondary batteries.

A nitrile-based electrolyte additive forms a stable electrode film that suppresses side reactions and metal dissolution during high-temperature storage.

Controlling lattice volume and Curie-Weiss temperature helps high-nickel cathodes manage H2-H3 transitions and align designed and actual capacity.

Controlling phase expansion and contraction in Ni-rich cathodes helps lithium batteries retain capacity and resist crystal distortion over cycling.

A dual layer with PTC resin and lithium transition metal phosphate improves thermal, physical, and electrochemical safety with limited energy density loss.

Hydrogen phosphate on iron oxyhydroxynitrate repels binder carboxylates, preventing cathode agglomeration while preserving adhesion and capacity.

Mo-doped trigonal Li-Ni oxide supplements lithium during initial charge while limiting impurity and gas generation from cathode additives.

A core-shell porous carbon structure improves lithium-ion transport while confining lithium polysulfide to extend lithium-sulfur battery life.

A film-forming electrolyte additive stabilizes low-cobalt cathodes, suppresses impedance growth, and preserves cycle life and DCR.

Stripe-shaped surface coatings on single-particle cathodes cut electrolyte contact and gassing while preserving electrochemical performance.

An aluminum-yttrium-tungsten coating shields nickel-based cathode particles from high-voltage side reactions, gas generation, and cycle-life loss.

Controlled primary and aggregate particle sizes raise compaction density and shorten lithium-ion paths to improve battery energy and rate capability.

A film-forming electrolyte additive stabilizes electrode interfaces, suppressing side reactions and resistance growth during high-voltage charging.

Fluorine-based cation and anion substitution stabilizes nickel-rich cathode oxide, suppressing cation mixing, gas generation, and capacity fade.

Tellurium cathode additive and fluorinated ether electrolyte form a protective layer that suppresses polysulfide leaching and lithium dendrites.

An Al-Co concentration gradient with Ti substitution stabilizes Ni-rich cathode particles against micro-cracks and side reactions.

Cobalt doping during water washing stabilizes high-manganese sodium cathode particles, improving conductivity, rate capability, and cycle life.

A two-stage firing process tunes activation energy and cation mixing in high-nickel cathodes to improve thermal stability, power, and capacity retention.

Coated Li5FeO4 lowers cathode resistance while improving lithium ion release and irreversible capacity in lithium-ion secondary batteries.

Controlled wet pulverization, heat treatment, and activation create porous carbon that limits sulfur elution and improves lithium-sulfur capacity retention.

An alkaline recycling route recovers cathode active material without acids or organic solvents while preserving crystal structure and battery performance.

Surface magnesium and aluminum doping in a Li-ion cathode helps preserve discharge capacity and energy density in low-temperature operation.

A 94-98% oxygen firing atmosphere helps nickel-rich cathodes suppress Li/Ni cation mixing and peroxidation for better cycling.

Targeted Al, Ti, and Zr doping stabilizes lithium cobalt oxide cathodes at high voltage, improving fast charging, lifetime, and energy density.

A Ni-rich core and controlled Ni/Al surface region help lithium secondary batteries retain capacity and limit resistance growth over cycling.

Surface fluorination converts LiOH and Li2CO3 residues into a protective coating, avoiding wash damage and preserving cathode stability.

Evenly distributed 1% to 30% surface porosity in a Li- and Mn-rich cathode improves lithium-ion transport, lowering resistance and extending battery life.

An aromatic polyamide binder cuts electrolyte swelling and harmful gas generation while preserving cathode adhesion and cycle stability.

Electrolyte additives support stable lithium polysulfide conversion, helping lithium-sulfur batteries retain capacity at fast discharge rates.

Controlling D90 and NSF in nickel-based cathode particles cuts resistance and breakage while preserving slurry stability and output.

Regional Ni/Al composition tuning in a positive electrode active material preserves capacity and limits resistance change during repeated cycling.

A cobalt-rich coating on selected high-nickel cathode particle surfaces improves lithium battery durability, efficiency, and capacity retention.

A dual-particle Li-Ni-Mn cathode with an aluminum coating balances cobalt reduction, high-voltage stability, and longer battery cycle life.

A two-layer cathode with a controlled resistivity ratio balances electron transport and lithium deintercalation to improve battery cycling.

A dual-shell sulfur cathode confines polysulfides and absorbs volume change to improve Li-S cell cycle life and rate capability.

An aluminium-coated mix of secondary and smaller single Ni-Mn cathode particles limits electrolyte side reactions and sustains high-voltage cycling.

A porous carbon cathode with catalytic sites confines lithium polysulfides and improves sulfur reaction kinetics for higher energy density.

An aluminum surface layer and cobalt grain-boundary coating stabilize low-cobalt cathodes, cutting storage gas while preserving capacity and cycle life.

Controlled 2-10 nm pore volume in a lithium metal composite oxide keeps cathode slurry viscosity stable for more consistent battery electrode coating.