What is the fundamental reason for breaking the important skills of lithium-ion battery packs?

1. A breakthrough in the research and development of lithium-ion battery materials. It is hoped that my country's graphene-coated modified lithium-ion battery positive and negative electrode materials will be greatly broken. The test results show that the graphene coating technology developed by the team of the Institute of Metal Research of the Chinese Academy of Sciences can increase the specific capacity of lithium-ion battery pack cathode materials by 15%-25%, and increase the capacity retention rate after 1,000 cycles by 30%-40%; The capacity of the negative electrode material is increased by 40%-45%, and the capacity retention rate after 1,000 cycles is increased by 35%-50%. The company has developed graphene conductive agents, carbon nanotube conductive agents and graphite anode products for power lithium-ion batteries. Narada has applied for two discovery patents for a lead-carbon battery negative plate containing lead-graphene composite material and a lead-graphene composite material. 2. The new type of dual-ion battery has lower technical cost and higher energy density. According to the introduction, the aluminum-graphite dual-ion battery discovered by Tang Yongbing is a new type of high-efficiency, low-cost energy storage battery. This new type of battery uses graphite instead of lithium compounds in lithium-ion batteries as the positive electrode material, and aluminum foil as the negative electrode material and negative electrode current collector. The electrolyte is composed of conventional lithium salt and carbonate organic solvents. The cruising range of a 500kg aluminum-graphite battery can reach about 550 kilometers, while the cruising range of an ordinary electric vehicle battery of the same weight is only more than 400 kilometers. Compared with the traditional lithium battery technology, the new battery can reduce the production cost by about 40%-50% and increase the energy density by at least 1.3-2.0 times. 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: Lithium-ion battery safety assessment and test methods are clarified