Analyze the history of lithium battery cathode materials

Analysis of Lithium Battery Cathode Materials In 2012, lithium batteries accounted for 41% of global lithium terminal demand. The input and output performance of the lithium battery depends on the structure and performance of the internal data of the battery. The battery internal information includes negative electrode information, electrolyte, separator, and positive electrode information. Positive data is the core key information, accounting for 30-40% of the cost of lithium batteries. The rapid expansion of consumer electronics stores (laptops, tablets, smart phones, etc.) has led to a surge in demand for lithium batteries. In the future, electric vehicles and energy storage power stations in the field of new energy will also rely on lithium batteries. By 2013, the global lithium battery industry is expected to reach 27.81 billion US dollars. In 2015, the industrial application of new energy vehicles will promote the global lithium battery industry plan to reach 52.32 billion US dollars. With the expansion of the lithium battery industry plan, the lithium battery positive data industry plan is also in a rapid expansion stage, and the application of lithium cobalt oxide is the most mature. Use the positive electrode data to decompose the positive data of the lithium battery currently being used and developed. There are important ternary data such as lithium cobalt acid, lithium nickel cobalt acid and nickel manganese cobalt, spinel lithium manganate, and olivine lithium iron phosphate. In my country, the positive data includes lithium cobalt acid, ternary data, lithium manganese acid and lithium iron phosphate. The application category decomposition of positive electrode data is of great significance. Lithium cobalt oxide is still an important source of positive data for small lithium batteries, and is mainly used in traditional 3C lithium batteries. Ternary data and lithium manganate are mainly used in small lithium batteries. In Japan and South Korea, battery technology is relatively mature and is mainly used for electric tools, electric bicycles and electric vehicles. Lithium iron phosphate is widely used in the field of power lithium-ion batteries in my country, and is the development direction of energy storage batteries in the future. It is mainly used in base station and data center energy storage, household energy storage, solar energy storage and other fields. Lithium cobalt oxide will gradually be replaced by lithium cobalt oxide. The processing process is simple, the electrochemical performance is stable, and the earliest fully commercialized. It has the advantages of higher discharge voltage, stable charging and discharging voltage, and high energy ratio, which is important The application of small battery consumer products, because of the rapid development of the consumer electronics market, lithium cobalt oxide lithium battery cathode materials accounted for the largest sales, but its capital is high, and it is not conducive to environmental protection, low specific capacity utilization, short battery life, and poor safety . Ternary data integrates the advantages of three types of data: lithium cobalt oxide, lithium nickelate and lithium manganate. It has price advantages, but its use is affected by the price of cobalt. When the price of cobalt is high, the price of ternary data is lower than that of cobalt. Lithium oxide has strong market competitiveness; but when the price of cobalt is lower, the advantages of the triplet data related to lithium cobalt are much smaller. At present, the replacement of lithium cobalt oxide data by ternary data is a general trend. The ternary data has the advantage of low cost. The ternary data is made of nickel, cobalt, and manganese in a certain proportion, and then the lithium source is introduced for preparation. Tesla's first sports car uses 18650 lithium cobalt oxide batteries, while the second mass-produced model Model-s uses Panasonic's customized ternary-data battery, a nickel-cobalt-aluminum ternary-positivedata battery. The cost of lithium cobalt oxide batteries is high, and the comparison between the two models before and after Tesla is very meaningful. The number of batteries used in model-s reached more than 8,000, more than 1,000 more than Roadster, but the cost was reduced by 30%. This is due to the better cost control of the three-way battery. At present, my country still has a big gap with the international market in terms of high-performance power lithium battery NCM ternary data. There are two obstacles in equipment and stability control technology, and the development is obviously lagging behind. It has been widely used abroad, but our company has no products yet. 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: What requirements should be paid attention to when customizing lithium batteries?