Segmentation by type classifies layered oxide cathodes according to their transition‑metal chemistry, a factor that determines energy density, thermal stability, and cost structure. The dominant NMC family (nickel‑manganese‑cobalt) occupies roughly 50 % of the market, driven by its flexible stoichiometry—NMC 111, 622, and 811—that enables manufacturers to balance nickel‑driven energy gains against cobalt‑related safety and price considerations. NCA (nickel‑cobalt‑aluminum) accounts for about 25 %, offering the highest gravimetric energy but requiring stringent thermal‑management controls, which confines its use mainly to premium EV platforms. LCO (lithium‑cobalt‑oxide) remains at approximately 15 % due to legacy adoption in portable electronics, where its high voltage and mature supply chain offset concerns over cobalt scarcity. Emerging high‑nickel, low‑cobalt chemistries such as LiNiO₂ and doped variants capture the remaining 10 %, reflecting early‑stage commercialization and targeted R&D aimed at reducing material costs while preserving performance. The relative share of each type directly influences the overall market size, as pricing, production capacity, and application fit are tightly linked to the underlying chemistry.