Positive Electrodes TRIZ Cases

Mixing micron and nano positive-electrode particles improves battery capacity, low-temperature operation, energy density, and cycle life.

A mixed small-large cathode particle composition strengthens current-collector binding while improving low-temperature capacity, energy density, and lifespan.

Fe-Mn-Ti composition tuning in a positive electrode material raises energy density and operating voltage while preserving low-temperature battery performance.

A layered positive electrode uses lithium iron phosphate and endothermic materials to suppress short-circuit heat and ignition in Li batteries.

A lithium-ion-conductive oxide coating on layered cathode particles cuts interfacial resistance to improve high-rate discharge and cycle life.

A porous-core, dense-shell lithium-metal oxide preserves battery characteristics while raising particle strength and durability in Li-ion cells.

An amorphous carbon coating formed during calcination stabilizes high-nickel single-crystal cathodes, lowering resistance and limiting microcrack-driven aging.

Dopant-tuned olivine cathodes improve Li+ diffusion, conductivity, operating voltage, and low-temperature battery performance.

A uniform lithium phosphate coating limits cathode-electrolyte contact, reducing side reactions and resistance while preserving ion transport.

A lithium boron oxide coating suppresses resistive cathode-electrolyte reactions in sulfide solid-state batteries while preserving charge and discharge capacity.

Boron-coated large particles and cobalt-coated small particles are combined to raise capacity, extend life, and lower initial DC-IR in lithium secondary batteries.

Radially oriented shell particles create comb-like ion pathways in a high-nickel cathode, improving capacity, efficiency, and cycle life.

Compact coated cathode secondary particles resist crushing during cycling, improving lithium-ion battery cycle life and limiting swelling.

Core-shell cathode particles improve catholyte contact and mixture homogeneity, cutting solid-state battery impedance and extending cycle life.

Controlled heating and gradual cooling improve high-Ni cathode crystal order, reducing cation mixing, LiOH impurities, and capacity fade.

Precise Li-Mn-Ni-Co/Cr tuning stabilizes LMR cathodes against voltage decay while preserving cycle performance, rate capability, and >200 mAh/g capacity.

Nitrone additives help lithium-supplemented cathodes curb side reactions, improving capacity, safety, and cycle life in secondary batteries.

An aluminium-yttrium-tungsten coating protects cobalt-free nickel-rich cathode particles, limiting gas generation and structural decay at high voltage.

A dual-additive electrolyte forms stable interface films that suppress high-temperature gas generation and preserve charge-discharge cycle life.

A lithium-rich cathode supplement and low-fluorine electrolyte reduce metal ion dissolution, improving Li-Ion battery safety and cycling at high temperatures.

A single-particle NCM cathode uses controlled grains, doping, and two-stage sintering to keep high capacity while reducing resistance growth and gas generation.

Secondary pores between primary particles shorten lithium-ion diffusion paths and buffer volume change to improve battery energy density and cycling.

Impedance measured over time reveals gelation, agglomeration, and solidification in electrode slurry for faster battery quality control.

Blending LMR and LFP cathode materials cuts heat generation and internal resistance while maintaining discharge capacity and cycle life.

Balancing 20-70 (101) layers in a doped cathode precursor improves lithium-ion transport, capacity, and high-temperature cycle stability.

Spent battery leachate is refined into NCA cathode precursor material to cut raw material cost and environmental burden while preserving capacity.

Controlled low-cobalt cathode particles improve high-temperature storage and cycle life by limiting crystal instability and electrolyte side reactions.

Controlled void shape and distribution in lithium metal composite oxide improve initial discharge capacity, rate performance, and packing density.

A phosphate or pyrophosphate surface layer on Ni-Mn cathode particles suppresses high-SOC resistance growth while preserving efficiency and durability.

Al-doped, B-coated lithium metal oxide additive cuts Li byproducts that cause gelation, gas generation, and irreversible capacity loss.

A fluorinated electrolyte additive forms a protective cathode film and scavenges byproducts to curb metal dissolution at high temperature.

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

A carbon-supported sodium phosphate core with a metal oxide shell improves cathode conductivity, capacity, and cycling stability while limiting side reactions.

Site-specific Na, metal, and anion doping stabilizes lithium-rich manganese cathodes, raising initial efficiency and capacity while suppressing gas.

Pores and bimodal particle sizes shorten lithium-ion paths while preserving electrode strength and compacted density in secondary batteries.

Controlling nickel hydroxide secondary-particle aspect ratio improves sieve passage, yield, and productivity for battery cathode precursors.

A mixed FEC-EP-TCEP electrolyte with nitrogen lithium salt cuts electrode resistance and swelling while balancing hot-cycle life and low-temperature DC resistance.

A two-layer positive electrode with solid electrolyte concentrated near the solid electrolyte layer improves rapid charging while limiting internal resistance.

A porous inorganic top layer adsorbs dissolved active material and blocks cross-over, helping conversion cathodes retain capacity and cycle life.

Controlling nickel hydroxide particle circularity enables a more uniform cobalt oxyhydroxide coating, lowering resistance and improving charge-discharge behavior.

Controlling Li-site metal occupancy and particle strength in a Li-Ni composite oxide helps lithium secondary batteries retain discharge capacity at high current.

Specific carbonate, propionate, cyanoethoxy, and lithium salt ratios stabilize electrode interfaces to improve hot cycling and low-temperature DC resistance.

A bimodal lithium iron phosphate particle mix fills voids to raise compacted density while maintaining stable electrochemical performance.

A simplified phosphate-sulfate precursor route reduces synthesis complexity while controlling oxidation state and stoichiometry for stable battery electrodes.

A bimodal high-Ni cathode with a metal oxide coating limits Li/Ni cation mixing, cuts Li by-products, and improves cycle and storage stability.

A skewness-controlled single-particle cathode material cuts porosity, raises rolling density, and improves charging capacity in lithium secondary batteries.

Fine-to-coarse cathode layers improve energy density while preserving stability, capacity retention, and high-temperature storage.

Blending Mn-based and Mn-free O2-type active materials suppresses resistance rise and preserves discharge capacity in lithium-ion batteries.

A hetero-element-doped cathode surface gradient preserves high nickel capacity while improving cycle life and stability in lithium secondary batteries.

A phospholane-cyano electrolyte additive forms an electrode film that suppresses LiPF6 gas generation and electrolyte depletion at high temperature.