Cathode materials: Layered ternary oxides, olivine-structured lithium iron phosphates and spinel-structured lithium manganese oxides have embraced mass production, and lithium-rich manganese-based materials have come to the introduction phase. Anode materials: Graphite is the primary material, with synthetic graphite gaining dominance. Silicon-based composites with high specific capacity have reached the commercial mass manufacturing stage, and lithium metal anodes have started trial use.