• Categories:News Center
• Time of issue:2022-05-06 10:24

(Summary description)As the concept of environmental protection and energy saving is deeply rooted in the hearts of the people, new energy projects are also attracting more and more attention. At present, the industry influence of Chinese lithium battery material manufacturers is gradually increasing, and the global share is increasing year by year, and the development prospects are good. However, most of the negative electrode materials of lithium batteries are powder materials, and the powder of graphite and other negative electrode materials is relatively fine after crushing, which is more likely to cause dust to fly. In the past, the production of negative electrode materials was completely dependent on manual labor, and the production environment was extremely harsh, while pneumatic conveying made the production of negative electrode materials automated, unmanned and dust-free.   1. The advantages of pneumatic conveying in the production of lithium battery materials: ①The pneumatic conveying pipeline is airtight and leak-free, which can realize airtight production and provide a dust-free and clean workshop environment; ②Reduce dust and material leakage, which is not only environmentally friendly and pollution-free, but also saves raw materials and improves production efficiency; ③ Realize automated production, reduce labor intensity of workers, and reduce labor costs; ④It can be equipped with automatic batching system, accurate measurement, reduce human factors, and improve product quality; ⑤ The production environment is safe and stable.   2. Difficulties of pneumatic conveying in the production of lithium battery materials: ①Material stratification: Lithium battery positive and negative materials have high requirements on the consistency of materials, that is, uniform particle size is required. However, in the process of pneumatic conveying, due to the characteristics of conveying, delamination will occur, that is, large particles are conveyed at low speed, and small particles are conveyed at high speed; ② Metal content: An important criterion for the quality evaluation of lithium battery anode materials is the content of metal components in the material. Excessive metal content will not only speed up the discharge of the battery, but also affect the safety performance of the battery; ③Electrical control equipment: The negative electrode material of lithium battery has electrical conductivity, so there will be relatively high requirements on the electrical control cabinet and electrical equipment, otherwise there will be great risks in the production process.