Positive Electrodes TRIZ Cases

High-current charging followed by constant-voltage control shortens charge time while limiting H2-H3 phase transition and cycle-life loss.

A porous high-surface-area sulfur-carbon cathode confines polysulfides to cut irreversible capacity loss and extend lithium-sulfur battery life.

Dual-valence core-shell doping helps ternary cathodes keep high capacity while improving structural stability and high-temperature cycling.

Regional placement of different battery cells balances low-temperature discharge capacity with overall safety in a battery pack.

Plate-like primary particles agglomerated into porous spherical secondary particles improve LiMPO4 cathode capacity retention at high discharge rates.

A two-layer cathode combines secondary and single particles to limit cracking and gas generation while preserving battery capacity at high temperature.

Growing primary macro-particle and crystal size in nickel cathodes reduces rolling cracks while improving press density, cycle life, and gas performance.

Low-dew point gas fed upstream in a rotary kiln prevents condensation blockages and supports stable lithium metal composite oxide calcining.

A solid lithium nitrate holder continuously feeds additive into the electrolyte to suppress polysulfide shuttle and sustain coulombic efficiency over cycling.

Combining plate-like and spherical O2-type cathode particles in defined size and mass ratios improves lithium-ion battery capacity.

A multivalent carboxylic acid additive suppresses cathode slurry gelation and crosslinking while lowering residual solvent and internal resistance.

Controlled agitation and gravity separation recover high-purity lithium-ion cathode active material while cutting solvent use, cost, and environmental impact.

A composite aqueous binder improves electrode adhesion while limiting lithium polysulfide elution to preserve output and battery stability.

Polyamideimide binder and sulfur-oxygen electrolyte additives improve cathode flexibility, cut low-temperature resistance, and protect high-temperature storage.

Using polyvinyl butyral with lithium difluorophosphate and trinitrile improves cathode shedding resistance, lowers initial resistance, and boosts low-temperature rate performance.

Controlled low-oxygen, low-humidity calcination cuts oxygen gas from sacrificial cathode material while preserving battery capacity and stability.

A dual-crystal positive electrode mix improves packing density, cuts interface impedance, and extends battery service life.

Controlled oxidation with seed crystals raises Fe/P above 0.99 while keeping ferric phosphate particles lamellar, uniform, and processable for LFP cathodes.

SrMnO3 in lithium-transition metal oxide cathodes suppresses electrolyte side reactions while preserving lithium-ion mobility and capacity.

A doped core-shell LiCoO2 cathode and film-forming electrolyte suppress gas and cobalt dissolution at 4.45V+ to improve cycle life and heat durability.

A surface-rich layer of non-aggregated particles improves electrolyte access, while a denser core preserves battery capacity and cycle life.

Microporous carbon in the sulfur cathode and a tuned electrolyte suppress polysulfide elution to raise energy density and capacity retention.

A thiophene-based conductive polymer coating on NMC active material blocks electrolyte side reactions while preserving conductivity and capacity retention.

Ti or Mg doping helps lithium nickel oxide resist particle breakage during high-pressure rolling, reducing gas generation and extending battery life.

A fluorine and cyano polymer blend in the positive electrode layer cuts electrolyte side reactions and improves high-temperature cycling and storage.

Aggregated radial primary particles in the cathode active material reduce cracking and resistance while improving lithium-ion cycling stability.

Discontinuous LiCoO2 islands on single-particle cathodes suppress NiO surface reduction, lowering resistance and improving lithium battery cycle life.

Dry mixing and sintering form an amorphous lithium-containing cathode coating that preserves ionic conductivity and improves battery cycling.

Controlled primary particle size and shape in nickel-rich cathodes improve output while limiting electrolyte reactions that shorten cycle-life.

A two-step heat treatment and controlled Li ratio raise volumetric capacity in Li-rich nickel-manganese cathode materials.

Protective-film-forming electrolyte additives suppress side reactions and slow resistance growth in lithium secondary batteries during high-temperature storage.

A linear carbonate and linear ester electrolyte balances fast charging with lower fire risk while preserving capacity retention and battery life.

A lyophilic polymer in the electrode film layer improves electrolyte retention and wettability, easing polarization while supporting high energy density.

Controlled fine powder content and particle size distribution help a Mid-Ni cathode balance capacity, lithium impurities, cost, and high-voltage life.

A metal-oxide shell in a carbon matrix helps composite positive electrodes limit electrolyte side reactions while improving conductivity and thermal stability.

A boron-containing lithium salt and Mn/Co cathode balance suppress dissolution, stabilize interfaces, and preserve high-voltage cycling at heat.

Controlled intra-particle porosity in lithium manganese cathodes balances capacity and volumetric energy while improving rate performance.

Controlling the Li2MnO3 phase in a lithium-rich manganese additive helps LMFP cathodes improve cycling stability without gas generation.

Controlled carbon black particle groups and CNT mixing create conductive paths that lower internal resistance and improve discharge rate.

A dual-hardness positive electrode particle mix improves base-material adhesion and void filling, boosting initial output and electrode density.

A Formula 1 electrolyte additive stabilizes PF5 and limits F− attack on LFP cathodes, improving lithium battery life and stability.

Multi-element Al, Zr, and Ti doping stabilizes high-nickel NCM cathodes, reducing cation mixing and resistance while preserving capacity.

A mixed single and quasi-single cathode particle structure raises rolling density without lengthening lithium-ion migration paths.

A two-stage sintering and carbon coating route stabilizes lithium-rich iron composite additives for cathode prelithiation and scalable processing.

A dithioester electrolyte additive forms a protective electrode film to suppress LiPF6 side reactions and preserve high-temperature cycle life.

Using 15%-20% LiPF6, the electrolyte builds a LiF protective layer that suppresses cathode element dissolution and protects SEI stability.

Catalytic-site sulfur and a fluorinated ether electrolyte speed polysulfide conversion, limiting elution while raising Li-S battery energy density.

A sulfur-stabilized surface layer helps high-nickel cathode material retain structure, suppress side reactions, and extend battery cycle life.

Phosphate-filled cracks in a cobalt-containing cathode suppress cobalt dissolution, improving Li-ion battery cycle life and safety.

A dual-porosity separator improves electrolyte transport while constraining polysulfides to raise Li-S battery energy density and cycle life.