Function battle: Lithium manganate VS lithium iron phosphate

The battle for mainstream lithium batteries There are four important data for lithium batteries, which are positive electrode data, barrier film, electrolyte and negative electrode data in proportion to cost. Lithium batteries are generally classified according to different positive electrode data in the world. Functional controversy: The cathode data of lithium manganese oxide and lithium iron phosphate non-power lithium batteries is usually lithium cobalt oxide, while the cathode data of power lithium batteries is now divided into two major factions, lithium manganate and lithium iron phosphate, and Japanese manufacturers advocate using it. Lithium manganese oxide and some electric vehicles that use lithium manganese oxide batteries have been introduced, such as Nissan leaf; manufacturers in the United States and my country are keen on lithium iron phosphate. A123 is an important processor of lithium iron phosphate. What is unusually prominent in function is that the energy density of lithium iron phosphate as a cathode material is greater than that of lithium manganese phosphate (LiMn2O4: 100mA, h/g, 0.400kW, h/kgv. LiFePO4: 150mA, h/g, 0.495kW, h /kg), and in various negative electrodes. It is guessed that its internal resistance is very small, that is, the battery life is long, the charge and discharge heating value is small, and the safety is high. But in terms of industrial maturity, capital and commonality, lithium manganate is far superior to lithium iron phosphate. Because the lithium batteries used in electric vehicles are connected with dozens or even hundreds of batteries, the requirements are generally very high, which is the most difficult for lithium iron phosphate to achieve. Positive data controversy: On the edge of a big country, the upstream and downstream environment of the industry is not optimistic. Belgium's Umicore is a large company with tens of billions of dollars in annual revenue. Its important processing base is in Korea. In 2010, due to the surge in demand from South Korea’s LG Chem and Samsung SDI, Umicore surpassed Japan’s niagatachemicalco. to become the world’s largest manufacturer of lithium battery cathode materials with a market share of more than 30%. However, lithium battery cathode data only accounts for less than 10% of Umicore's revenue. Nicoya Chemical is the world's largest LED processor. Before 2010, it was still the world's largest lithium battery cathode data processor, with a market share of more than 20%. Because of the types of lithium battery cathode materials and the participation of many manufacturers, especially Japanese manufacturers, Tian Industry, AGCSEIMI Chemical Research Institute SEIDO, Tanaka, JFE Mining, Mitsubishi Chemical, Nitto Denko, Mitsubishi, Sumitomo Osaka Cement Mining (Sumitomo Osaka Cement), Japan Chemical Industry, etc., Japanese manufacturers, about 50% of the cathode material market. Major manufacturing companies in my country include Dangsheng Technology, Shanshan Technology, Ruixiang Technology, Jinhe Technology, Zhongxin County Allied Technology, and Bama Technology, with a market share of 11%. It should be noted that BYD, a large electric vehicle manufacturer, purchased lithium iron phosphate from Tianjin Strong. Lithium battery manufacturers that can give up positive data are usually only Japanese manufacturers. There are many ways to choose. Today, almost all major automakers have chosen high-maturity lithium manganese oxide, and even the best lithium iron phosphate A123 has lost out to general motors’ competitor Chevrolet LLG. . Automobile manufacturers will not conduct experiments for lithium iron phosphate processors. In the case of repeated automobile recalls, automobile manufacturers have been extremely cautious. But although the lithium manganese oxide battery has only five years of technological maturity, today's lithium battery products can be said to be all-inclusive, with a variety of anode and cathode data, separators and electrolytes appearing in infinite flow, and manufacturers are choosing The detailed lithium battery should be selected according to the battery cost performance of the bidder. For battery manufacturers, improving the safety, versatility and capacity of batteries is the key. At present, the raw material market is limited to people, and the battery market is full of powerful forces. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Analysis of the internal structure and charging and discharging requirements of lithium batteries