Lithium negative graphite new process enterprises will benefit
Oct 18,2024
Network
Enray
In recent years, with the policy of saving and reducing emissions, the cost of graphitized products has increased year by year. How to increase production capacity, reduce pollution and save resources is an important issue that existing enterprises should think about.
Hunan EnruiSpecializing in the production of lithium battery anode materialsGraphitization furnace equipmentWelcome advice!
The traditional negative graphite process for the crucible method, but the crucible method energy consumption and cost is higher, environmental protection also has problems, domestic head negative enterprises began to use box furnace process, while a number of enterprises are also developing a lower cost continuous method process. The box method and the continuous method have obvious advantages in unit power consumption and output per unit area. The continuous method is also better in product consistency. The two processes are expected to become the mainstream in the future. However, in the application field, the box method is more suitable for all kinds of artificial graphite. The continuous method may be more suitable for the low-end market due to the relatively low heating temperature. Future forward-looking do graphite and granulation enterprises, and in the box method, continuous method process layout leading enterprises may gradually open the profitability gap with peers.
Abstract
Introduction of negative graphitization process.The graphitization process of artificial graphite negative electrode is mainly divided into batch method and continuous method, and the batch method includes crucible method and box method. Graphitization accounts for about 50% of the cost of the negative electrode, and also has a great influence on the performance of the negative electrode. At present, most of the domestic mainstream negative enterprises using crucible process, but the crucible method energy consumption and cost is higher, environmental protection also has problems, Yan Tailai, Shanshan, Shangtai and other head negative enterprises began to use box furnace process. At the same time, due to the obvious advantages of continuous method in terms of energy consumption, cost, consistency, etc., companies such as Bertrand and Sanhe Intelligence have also begun to try to use continuous graphitization process.
Box method and continuous method are expected to become the mainstream process in the future.According to Yan Tailai, Shanhe intelligent announcement, as well as industry feedback, compared with the traditional graphite crucible furnace processing process, the box method and continuous process of the unit power consumption is reduced by 20-30%, 40-50%. At the same time, the box method and continuous method process in the unit area of the daily output is also higher, the box method and continuous method single-day output is 2 times and 5-6 times the traditional crucible furnace process. With obvious cost advantages, box-type furnaces have gradually replaced crucible furnaces, and continuous process has also begun to break through. However, due to the relatively low heating temperature of continuous process, the specific capacity of products will be relatively low. Its main field may be in the middle and low-end markets, and its application in the high-end negative field needs further technical improvement and upgrading.
Ahead of the layout of graphite and the successful development of new processes of negative enterprises will occupy the first opportunity.Graphitization has an important impact on the cost and performance of artificial graphite, but the energy consumption of graphite is large and there is a certain environmental pressure, the traditional practice of negative enterprises is to outsource graphite, in recent years, led by the negative enterprises forward-looking to accelerate the graphite self-supply layout, in order to further protect the supply chain and enhance profitability. With the continuation of double carbon constraints, graphitization and other links may have a further impact on the negative material industry, forward-looking enterprises to do graphitization and granulation, and in the box method, continuous method process layout leading enterprises may gradually open the profitability gap with their peers.
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