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The common cathode materials currently include lithium cobalt oxide (LCO), lithium manganese oxide (LMO), lithium iron phosphate (LFP), and ternary materials. Lithium cobalt oxide is the first commercially available positive electrode material, with high voltage, high compaction density, stable structure, and good safety, but high cost and low capacitance. Lithium manganese oxide has low cost and high voltage, but its cycling performance is poor and its capacity is also low. The capacity and cost of ternary materials vary depending on the content of nickel cobalt manganese (in addition to NCA), and the overall energy density is higher than that of lithium iron phosphate and lithium cobalt oxide. Lithium iron phosphate has low cost, good cycling performance, and good safety, but with a lower voltage platform and lower compaction density, resulting in a lower overall energy density. At present, the power sector is mainly composed of ternary and lithium iron, while the consumer sector has more lithium cobalt oxide. Negative electrode materials can be divided into two categories: carbon materials and non carbon materials: carbon materials include artificial graphite, natural graphite, mesophase carbon microspheres, soft carbon, hard carbon, etc; Non carbon materials include lithium titanate, silicon based materials, tin based materials, etc. Among them, natural graphite and artificial graphite are currently the most widely used. Although natural graphite has cost and capacity advantages, its cycle life is low and its consistency is poor; The various properties of artificial graphite are relatively balanced, with excellent cycling performance and good compatibility with the electrolyte. Artificial graphite is mainly used for high-capacity automotive power batteries and high-end consumer lithium batteries, while natural graphite is mainly used for small lithium batteries and general purpose consumer lithium batteries. Silicon based materials in non carbon materials are still undergoing continuous research and development breakthroughs.