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Lithium battery cathode materials and manufacturers of cathode materials

The cathode material is one of the key materials that determine the performance of lithium batteries, and is also the main source of lithium ions in the current commercial lithium-ion batteries. Its performance and price have a greater impact on lithium batteries. Among the cathode materials, the most commonly used lithium battery materials are lithium cobalt oxide, lithium manganate, lithium iron phosphate and ternary materials. What are the cathode materials for lithium batteries? 1. Lithium manganate Lithium manganate, as a lithium battery material with a long history of use, has high safety, especially strong resistance to overcharge, which is a major advantage. Due to the good structural stability of lithium manganate, the amount of positive electrode material does not have to exceed that of the negative electrode when designing the battery cell. In addition, the material is low in price, and the production process requirements are relatively low, and it is a cathode material that has been widely used earlier. Lithium manganate, limited by its high temperature performance, is generally not used in high-power or high ambient temperature situations, such as high-speed passenger cars, plug-in hybrids, etc., seldom use lithium manganate as power. But for electric buses, intra-city logistics vehicles, etc., lithium manganate is fully capable. 2. Lithium iron phosphate The advantages of lithium iron phosphate are mainly reflected in safety and cycle life. The main determinant comes from the olivine structure of lithium iron phosphate. Such a structure, on the one hand, leads to lower ion diffusion capacity of lithium iron phosphate, on the other hand, it also has better high temperature stability and good cycle performance. Lithium iron phosphate battery, due to its high safety, although the energy density partly affects its range of use, it is still the main power lithium battery for electric vehicles in my country. Especially for buses that involve the safety of a large number of people, the national policy mandates the use of lithium iron phosphate batteries. 3. Ternary lithium ternary lithium cathode material, which combines the advantages of LiCoO2, LiNiO2 and LiMnO2 materials, forms a synergistic effect inside the same cell, and takes into account the three requirements of stability, activity and lower cost of the material structure. , Is the one with the highest energy density among the three main cathode materials. Its low temperature effect is also significantly better than lithium iron phosphate batteries. The market share of ternary lithium battery cathode materials is gradually expanding, and the main driving force comes from the pursuit of car mileage. To catch up or even surpass the endurance of fuel vehicles, electric vehicles must be equipped with as much electricity as possible in a limited space, which makes energy density especially important. Ranking of Lithium Battery Cathode Material Companies 1. Hunan Shanshan New Material Co., Ltd. Hunan Shanshan, as the main layout of Shanshan Co., Ltd.'s lithium battery cathode materials, forms an effective complementary effect with Shanshan Group's anode materials and electrolyte industries. Through the adjustment of the customer structure in the past two years, the major customer structure has gradually formed and stabilized. Hunan Shanshan's comprehensive competitiveness ranks first in the country. In 2015, Hunan Shanshan's Ningxiang Phase I Cathode Material Production Base with an annual output of 15,000 tons is planned to be fully put into operation within the year, and the production capacity will reach 30,000 tons per year. In the cathode material industry, which is increasingly important due to the scale effect, Hunan Shanshan is optimistic about the future growth space and continued competitiveness of Hunan Shanshan. 2. Peking University Xianxing Technology Industry Co., Ltd. Peking University Xianxing was founded in 1999 by Dongsheng Investment and Peking University. It is located in Changping Park, Zhongguancun Science and Technology Park, Beijing. In addition to battery cathode materials, the company is also involved in the development of electric vehicles and energy storage battery packs. Ru0026D, production, sales and service. Since 2014, the new energy vehicle market has risen, and Peking University’s pioneering lithium iron phosphate market has rapidly expanded, and the cathode material production base in Xining has also begun large-scale production. Its automotive lithium battery ternary materials are also used by domestic Lishen and other customers, showing a situation of multi-point development as a whole. 3. GEM Co., Ltd. GEM Co., Ltd. was established in Shenzhen in December 2001 and listed on the SME board of the Shenzhen Stock Exchange in January 2010. At present, the company has fully deployed the 'raw materials of lithium cobalt oxide and ternary cathode materials- Cobalt salt-precursor-cathode material' entire industry chain. The domestic market has a cooperative relationship with Far East Foster and Gateway Power, and indirectly enters the CATL industry chain by processing precursors for Bangpu; in foreign markets, it cooperates with Samsung, ECOPRO and other manufacturers. 4. Tianqi Lithium Industry Tianqi Lithium Industry is a lithium product supplier, mainly providing lithium carbonate, lithium hydroxide, lithium chloride, lithium metal, spodumene and related derivative products. Lithium products are an important part of cathode materials for lithium-ion batteries. Currently, Terryson Lithium, which is controlled by Tianqi Lithium, is expanding its chemical-grade lithium concentrate in the Greenbush area of u200bu200bWestern Australia. The project is expected to be completed in the fourth quarter of 2020 and start trial production. It is expected that the chemical-grade lithium concentrate production capacity will increase to 1.8 million tons per year by 2021. Cathode material is the most critical raw material in lithium batteries, and its technical level and industrial development are of great significance to the large-scale application of electric vehicles. With the increase in the concentration of the power battery industry and the gradual maturity of technical routes, the future of power batteries will develop in the direction of safer, longer life, and faster charging speed.

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