What are the comprehensive factors for the design of lithium battery electrode materials for new energy vehicles?

In the next five years, the average annual growth rate of lithium-ion battery market for new energy vehicles will be around 50%. The advancement of lithium-ion battery technology mainly comes from the research and application progress of key battery materials. Through the development of new materials, the battery performance is further improved, the quality is improved, the cost is reduced, and the safety is improved.

Recently, at the Lithium Battery Industry and Technology Development Forum, experts discussed the new development needs of new energy vehicles for lithium batteries, how the electrode materials adapt to new development trends in the new situation, and how the power lithium battery materials industry can seize investment opportunities. . Experts and scholars from new energy automobile companies, research institutes and industry associations brought audio-visual feasts to the delegates.

Professor Hu Guorong, director of the Institute of Light Metals and Industrial Electrochemistry, School of Metallurgy and Environment, Central South University, pointed out that the research and development of cathode materials has become the key to restricting the large-scale application and application of such materials. Before 2000, lithium cobalt oxide dominated, accounting for almost 100% of the market.

After 2000, lithium manganate, ternary, and lithium iron phosphate cathode materials began to develop. At present, lithium cobaltate accounts for about 40% of the market, ternary system accounts for about 35%, and the rest are lithium manganate, lithium iron phosphate and binary department (NCA). Materials that need further development in the future include lithium-rich manganese-based solid solution materials, lithium manganese phosphate, lithium manganese iron phosphate, and lithium iron phosphate graphene composite materials.

Lithium manganate and lithium iron phosphate are mainly used in the field of large-scale energy storage and power batteries; ternary materials are currently used in the field of power batteries due to the improvement of safety technology for lithium battery manufacturing and the energy density requirements of lithium batteries. Therefore, ternary materials have good applications in the next two major markets, and their market prospects are promising, which will occupy the largest market share of cathode materials. However, since the ternary systems NCA and NCM are limited by nickel-cobalt resources, it is necessary to solve the nickel-cobalt recovery problem in the ternary material battery.

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