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4943013-6 ABB Backup Battery
Negative electrode materials are also an important part of lithium batteries, accounting for about 14% of the total cost, which has an important impact on the first efficiency and cycle life of the battery. The anode materials are mainly carbon materials such as graphite, hard carbon and soft carbon, lithium titanate, silicon-based and tin-based materials.
Electrolyte accounts for about 13% of the total cost, and its main components are solutes, solvents and additives. Solutes, including LiPF6 and the new lithium salt LiFSI, are the main source of costs. The solvents are mainly cyclic carbonate and chain carbonate, including PC, EC, DMC, DEC and EMC, etc. The additives are mainly used for film formation, overcharge protection, low temperature resistance, flame retardant, increase magnicity, etc. The common products include VC, FEC, PS, LiBOB, DTD, LiDFOB, etc.
Lithium copper foil is electrolytic copper foil, and the cost accounts for about 8%. Lithium copper foil is used for lithium anode fluid collector.
Diaphragms account for 4% of the total material cost and are divided into wet and dry diaphragms. The main cost of wet diaphragm is PE, and the main component of dry diaphragm is PP.