Basic concepts

　　Lithium ion battery:with its advantages of high energy density,no memory effect,long cycle life,high voltage,and the ability to realize high rate charging and discharging,it has been widely used in new energy vehicles,3C digital products,energy storage systems and other fields.In the general trend of the country's efforts to develop new energy vehicle industry,lithium ion battery has become the main choice.

　　Negative electrode material:It is the carrier of lithium ions and electrons during the charging process of the battery,and is the key main material of lithium-ion batteries,which has decisive significance for the performance of lithium-ion batteries.Graphite negative electrode materials are widely used in 3C products,power batteries,and high-end energy storage to maintain their cost and energy density advantages,and will be the mainstream in the market for a considerable period of time.Silicon negative electrode materials have ultra-high specific capacity,which is the key to achieving the target of a new type of power battery with a single specific energy exceeding 300 watt hours/kg by 2025.The composite part of silicon based materials is made into a"silicon carbon"composite negative electrode,which is expected to collaborate with graphite negative electrode materials to become the core negative electrode material of the new generation of high specific energy power batteries.

　　Currently,the world is in the early stages of the energy revolution.According to the latest data from industry research institutions GGII and Xinlun Information,the shipment volume of negative electrode materials in China was 880000 tons in 2021,and it is expected to reach over 3 million tons by 2025.The annual growth rate is over 40%.(Corresponding to the rapid development of new energy vehicles and energy storage batteries).