In simple terms, lithium-ion rechargeable batteries are made of two electrodes, a separator and filled with electrolyte. The technology is constantly evolving to increase safety and evergreen energy density.
Cathode: A mixture of active materials such as lithium metal oxides (NMC, LFP, LMO, LCO), conductive additives and binders (SBR, PVDF) coated precisely on an aluminum collector
Anode: The materials commonly used are based on carbon (graphite), lithium alloyed metals and binders coated in a thin layer on a copper collector
Electrolyte: It combines polymer or water-based solvents and lithium salts
Separator: Typically, multilayer sheets made of PE or PP polyolefins, offering a compromise between excellent mechanical strength and sufficient porosity to facilitate ionic exchanges in the cell