How are Lithium-Ion Batteries made: Focus cathode materials

Explore how nickel and cobalt occur in sulfide and laterite ores, in recycling, and as byproducts, and identify pentlandite, garnierite, cobaltite, and processing routes.

Explore how a hydrocyclone in a water slurry uses high-speed inlet flow and rotational movement to create centrifugal force, separating larger, heavier particles from lighter ones that escape the vortex.

Apply froth flotation to separate sulfide ores, concentrating nickel and cobalt minerals like pentlandite while discarding gangue rocks; use flotation agents and pH changes to refine the concentrate.

Explore essential resources on crushing, screening, and froth flotation for minerals, including books, websites, and videos that illustrate crushers, particle size reduction, and flotation reagents.

Describe electrowinning as a redox process where current drives copper ions to the cathode, depositing metallic copper while water splitting occurs at the anode, enabling impurity removal or metal recovery.

Explore essential reference books on hydrometallurgy and solvent extraction, covering leaching, electrowinning, and nickel, cobalt, and platinum group metals topics from Crundwell, Havlik, Habashi, and Ullmann.

Master spray pyrolysis by nebulizing metal solutions into droplets, forming metal salts that oxidize into nickel or cobalt oxide particles and collect as oxide powder using carrier gas.

Explore lithium demand from batteries to other applications, such as ceramics, greases, polymers, glass, and air-treatment; it is not highly scarce, but diluted and sourced mainly from brines and ores.

Explore the preparation of the precursor material for NMC cathodes, using coprecipitation to form atomic-level mixed metal hydroxide or carbonate particles from CoSO4, NiSO4, and MnSO4.

Learn how a coprecipitation reactor forms nickel manganese cobalt precursors for NMC811, using ammonium hydroxide complexes, pH and temperature control, and subsequent filtering and washing.

After precipitation, perform filtration with belt filters or centrifuges, then wash, dry, and sieve to produce precursor powder for the cathode.

Explore cathode refining through surface coatings: oxide, fluoride, oxyfluoride, and carbon to protect particles, improve electron and ion transport, and reduce HF-driven side reactions and metal leaching, boosting stability.

Discover how to mix and coat cathode material on current collector, dry and calendate it, and wining and stacking with the anode and separator before electrolyte fill and first charge.

Identify the electrode as the anode and cathode. Show how a single unit becomes a cell, and how several cells form a module and a battery pack.

Mix active cathode material with carbon black, binder, and additives to form a slurry, then coat on the current collector with a doctor blade.

Explore winding and stacking in lithium-ion battery manufacturing, detailing how cathode, separator, and anode layers are rolled for cylindrical or prismatic cells while preventing contact.

Fill the electrolyte under water-free conditions using lithium hexafluorophosphate in ethyl carbonate and dimethyl carbonate, in glovebox or dryroom, to prevent hydrofluoric acid formation and cathode aging.

Explore the final assembly of lithium-ion batteries, assembling cells into modules and packs, adding cooling, contacts, electronics, sealing, testing, certification, and recycling considerations from mine to battery.

Trace the battery life cycle from mining and refining to cathode material, cell, and pack. Show end-of-life steps—collection, dismantling, furnace metal extraction, and second-life use—toward greater recycling.

Explore mechanical pretreatment and hydrometallurgical and pyrometallurgical routes for recycling spent lithium-ion batteries, including separation techniques and a car battery dismantling flow sheet.

Explore lithium-ion battery recycling, covering life-cycle concepts and methods like hydrometallurgy, pyrometallurgy, and bio-hydrometallurgy, with recommended readings such as recycling of spent lithium-ion batteries and LithoRec Way.