Jinci(Tianjin)Magnetics Co.,Ltd.
Add to Cart
The separation principle of cathode materials for lithium titanate batteries by dry iron removal equipment
During the production process of cathode materials for lithium titanate batteries, it is inevitable that some magnetic impurities, such as iron, nickel, cobalt and their compounds, will be mixed in. These impurities have strong magnetic properties. The magnetic property of lithium titanate cathode material is very weak and is basically unaffected in a magnetic field. In dry iron removal equipment, it will move along the normal path. Magnetic impurities attracted by the magnetic field will be adsorbed on the magnetic components of the dry iron removal equipment, such as magnetic rollers or magnetic rods, etc. As the equipment operates, these magnetic impurities will be collected at specific locations, thereby separating them from the lithium titanate cathode material and achieving the purpose of purifying the lithium titanate cathode material.
Why is dry iron removal equipment used for the purification of cathode materials in lithium titanate batteries
The production of cathode materials for lithium titanate batteries is usually carried out in dry powder form. Dry iron removal equipment can directly process dry powder materials without the need for complex pretreatment and subsequent processing procedures such as dehydration and drying as in wet iron removal. It can seamlessly connect with the production process, improve production efficiency and reduce costs.
Before a certain lithium titanate battery cathode material manufacturer in Shandong, China, used the JC dry powder magnetic separator, the magnetic impurity content in the product was approximately 50ppm. After being treated by the JC fully automatic dry powder electromagnetic separator, the magnetic impurity content was reduced to below 1ppm, and the purity of the product was significantly improved, achieving a purification effect of ppb level iron content. It meets the strict requirements of high-end customers for product quality, and the equipment operates stably with low maintenance costs, bringing good economic and social benefits to the manufacturer.
Improvement and Benifit
Ensure the purity of the product: The dry magnetic separator can precisely control the magnetic field intensity and material flow rate. According to the characteristics of different lithium battery cathode materials and impurity content, it can flexibly adjust the circuit and magnetic field parameters to achieve efficient removal of magnetic impurities and ensure the purity of the product.
More reliable mechanical structure: Dry separation equipment faces challenges of vibration and sealing in practical applications. JC ensures sealing by improving the pipeline structure and eliminates pipeline leakage. Moreover, JC adopts exclusive customized shock absorption and buffering components, fundamentally reducing the vibration of the dry magnetic separator and increasing the trouble-free operation time of the equipment.