Positive Electrodes TRIZ Cases

Radial crystallites and 250 nm+ open pores expand internal reaction area, helping secondary battery cathodes cut resistance.

A sultone or cyclic sulfate cathode additive forms a protective interface that suppresses oxygen release, gas generation, and swelling at high voltage.

A nickel-graded lithium cobalt oxide cathode balances high discharge capacity with safety by stabilizing the crystal structure during charging.

A mixed secondary and single-crystal cathode composition limits impurity migration to preserve capacity, cycle life, and low-cost battery materials.

Specific Ni-Mn cathode doping with Na, K, or Mg plus dinitrile electrolyte additives suppresses oxygen release and improves cycle life.

Controlled sphericity and elongation in high-nickel cathode particles reduce cation disorder, improving battery cycle life and stability.

Fine particles attached to larger cathode particles expand reaction area, promote lithium migration, and lower initial resistance in secondary batteries.

A YCrO3 furnace-wall layer suppresses chromium contamination during cathode material calcination while preserving rotary kiln durability.

Radially oriented primary particles in a positive electrode active material reduce internal stress and preserve battery capacity over cycling.

Surface open pores between radial crystallites relieve stress concentration in cathode particles, preserving integrity and battery endurance.

A cobalt-rich surface on nickel-rich cathode particles reduces electrolyte side reactions and lattice deformation, helping lithium batteries last longer.

Point-type conductive materials replace CNTs to protect active particles during rolling, lowering porosity and raising lithium battery energy density.

A core-shell MOF-derived porous carbon boosts conductivity and traps polysulfides to improve Li-S battery efficiency and cycle life.

A porous intermediate layer and doped core-shell cathode structure limit volume change, cracking, and electrolyte penetration in high-nickel cells.

Borate-based lithium salts in trace electrolyte amounts help limit polysulfide-driven side reactions and improve Li-sulfur battery cycle stability.

High-sphericity single-particle cathode oxide reduces cracking and gas generation, improving lithium secondary battery life and thermal stability.

Staged cooling after high-temperature firing improves lithium distribution in high-nickel cathodes while reducing LiOH impurities and extra lithium use.

Controlling O2-like crystallite size to 400-1000 Å raises high-potential capacity ratio while preserving reversible capacity and rate performance.

A quaternary ammonium salt-fused activated carbon cathode traps bromine, limiting crossover while improving charge transfer and cycle life.

A cobalt-rich particle surface limits electrolyte side reactions and lattice deformation, extending lithium secondary battery cycle life.

A spinel-layered particle blend raises nickel-rich lithium battery energy density while preserving capacity retention, stability, and cycle life.

Aluminium shell coatings and Al-Mg doped LiCoO2 particles suppress high-voltage phase transition and side reactions to extend cycle life.

Controlled Raman ID/IG and doped olivine particles improve cathode conductivity, capacity, and low-temperature battery performance.

Controlled pore volume and high-surface-area carbon trap polysulfides, cutting irreversible capacity and extending lithium-sulfur battery life.

A two-layer cathode using single and secondary olivine particles balances energy density, voltage, and conductivity in cold conditions.

A porosity gradient across the electrode balances electrolyte access with active material density to improve battery capacity and stability.

A two-layer cathode combines secondary and single particles to limit cracking and gas generation during high-temperature cycling.

Using an ATO brookite lattice in the positive electrode limits intercalation-driven expansion, boosts power, and extends battery cycle life.

A binder-rich first coating layer strengthens adhesion to the current collector, reducing internal short circuits during battery mechanical misuse.

An inactive border layer around the positive electrode covers lithium metal foil edges to limit cutting, suppress dendrites, and extend cycle life.

Controlled positive electrode porosity and electrolyte density improve low-SOC ion transport, power capability, and cycle life.

A siloxane-imide binder improves positive electrode adhesion and flexibility, reducing cracks and extending lithium battery cycle life.

A Formula 1 electrolyte additive builds a uniform SEI that limits cathode-electrolyte side reactions and supports low- and high-temperature cycling.

Preloaded sulfur, Li2S, and polysulfides stabilize fast-rate discharge, helping lithium-sulfur cells retain capacity and energy density.

A specific electrolyte additive builds a uniform SEI that suppresses cathode side reactions and improves low- and high-temperature cycle stability.

Uses cathode washing waste to precipitate transition metals first, then isolate high-purity lithium precursor with less alkaline pollution.

A mixed large- and nano-particle LiFePO4 cathode balances energy density with low-temperature capacity and longer battery life.

A siloxane-imide binder improves positive electrode adhesion, flexibility, and oxidation resistance to reduce cracks and extend battery cycle life.

Uniform sulfur distribution on lithium-transition metal oxide particles forms a protective intermediary layer that suppresses electrolyte side reactions.

A mixed olivine-layered cathode balances high voltage and energy density with stronger low-temperature lithium battery performance.

A thin ion-conductive polymer shell isolates cathode particles from electrolyte contact to curb capacity decay and improve Li-ion cycle life.

Controlled dry reduction of waste lithium battery cathodes improves lithium and transition metal recovery while avoiding acid-heavy pollution.

A Sr/Ca/Ba surface layer on high-Ni cathode particles suppresses electrolyte reactions and preserves capacity over repeated cycling.

A cobalt-rich shell on nickel-rich cathode particles suppresses surface reactions, improving lithium secondary battery stability and output.

High-boiling phosphate triester solvents with LiNO3 suppress gasification and swelling while preserving lithium-ion conduction and cycle retention.

A Lewis base electrolyte additive captures PF5, suppresses solvent decomposition, and protects the SEI layer for longer high-temperature battery life.

Magnesium doping and staged heat treatment stabilize high-nickel NCM cathodes, reducing voids, cracks, resistance, and oxygen-driven degradation.

A polymer and microfibrillated cellulose slurry forms a 3D fibrous network that boosts electrode adhesion, cohesion, and cycling stability.

A lithium-sulfur-metal surface portion on cathode particles limits electrolyte side reactions, cutting gas generation and improving cycle life.