Lithium iron phosphate battery possesses the advantages of what are the other batteries do not have?

Source: 2020 - 04 - 01 15:03 hits: lithium iron phosphate battery has the advantages of low cost, safe and reliable LFP depends on its low price and strong the safety of the battery of the lithium-ion battery cathode materials more than 40% of the capital, and technical conditions at that time, and the overall battery first depends on the energy density of the anode material, is the center of the lithium ion battery anode material, the discussion of the material, now old anode materials include cobalt acid lithium manganese acid lithium cobalt, nickel, lithium manganese acid lithium iron phosphate. ( 1) Lithium cobalt oxide: hierarchical structure and spinel structure, generally USES the hierarchical structure, its theoretical capacity of about 270 mah/g, hierarchical structure of lithium cobalt oxide is mainly used in mobile phones, model aircraft, model car, electronic cigarettes, smart apparel and other digital products. In the 1990 s, SONY use cobalt acid lithium production for the first time the commercial lithium-ion batteries. Before China's lithium cobalt oxide product base is Japan's door he, the Japanese chemical industry, the chemical industry, minmetals foreign sole manufacturer. Dangsheng technology, introduced the domestic lithium cobalt oxide, in 2003, 2005, 2009 to leave by the end of exports to South Korea and Japan, in 2010 to become the domestic top cathode material list as the main industrial enterprise land capital market. In 2012, Peking University, tianjin Obama launched the first generation of 4. 35 v high pressure lithium cobalt oxide products. In 2017, hunan ShanShan, xiamen tungsten industry launched 4. 45 v high pressure lithium cobalt oxide products. When energy density and compaction density cobalt acid lithium restrictions, the basis of their specific capacity compared with the theoretical capacity is still travel have more space, but because at that time the whole chemical system, especially the electrolyte is very brief decomposition under the high pressure of system, thus further paraded charge cut-off voltage is doomed, follow-up once electrolyte technology get broken, the energy density of space travel. ( 2) Manganese acid lithium nickel and cobalt, generally has the advantages of green environmental protection, low cost, Cost is only applicable to two-thirds of lithium cobalt oxide) , good security, Safe operating temperature up to 170 ℃) And long cycle life, Extended 45%) 。 In 2006, shenzhen day 333442523 feet, ningbo Kim and take the lead in put out three yuan material system. From 2007 to 2008, the main raw material of cobalt metal prices increased significantly, causing cobalt acid lithium cobalt and lithium nickel manganese oxide material transmission, promote the use of lithium electricity market in China, lithium cobalt nickel manganese oxide material in the outbreak period. In 2007, guizhou zhenhua introduced manganese acid lithium cobalt nickel single crystal 523 system. In 2012, xiamen tungsten exported to Japan market. In 2015, the government subsidy policy led to the second explosion of manganese acid lithium cobalt nickel material. At that time, the single crystal lithium nickel manganese cobalt salts of the progress of the research is mainly through continuous nickel content, progress charge cut-off voltage, further promoting the energy density of products, but this kind of electrolyte and other relevant supporting material, and lithium ion battery manufacturers technology put forward higher requirements. ( 3) Lithium manganese acid: spinel structure and layered structure, generally USES the spinel structure. Theoretical capacity of 148 mah/g, the actual capacity between 100 ~ 120 mah/g, and has the capacity to play better, stable structure, superior performance in low temperature, low cost, etc. But its crystal structure simple deformation, forming capacity attenuation, short cycle life. Mainly used for some security demands higher, the cost is higher, but lower energy density and cycle for the mall. If small communication equipment, charging treasure, electric tools and electric bicycle, special scenario ( Such as coal) And so on. In 2003, the domestic manganese acid lithium began industrialization, yunnan back to dragon and solid force to take the lead in low-end market, jining unbounded, Qingdao dry cargo transportation and other manufacturers gradually to participate in, production, distribution, product dynamic diversified open up, to meet different application market. In 2008, mi successfully manganese acid lithium batteries for electric buses. The manganese acid lithium low-end market is mainly used for battery functional requirements relatively low communication batteries, laptop battery and digital camera batteries, lithium manganese acid market demand will continue to adhere to grow steadily.