Lithium Battery Material Magnetic Separator | 99.99% Metal Impurity Removal | LiFePO4/NCM Cathode Material Purification.
In the lithium - ion battery industry, high - intensity magnetic separators operate on the principle of magnetic force differential. Lithium - ion battery materials, such as cathode materials like lithium iron phosphate, lithium cobalt oxide, and anode materials like graphite, may contain magnetic impurities during the production process. These impurities could be iron - based particles from raw material sources, equipment wear - and - tear, or contamination during processing.
The magnetic separator generates a powerful magnetic field, either through high - power electromagnets capable of producing fields up to several teslas or advanced permanent magnet assemblies using high - performance neodymium - iron - boron magnets. When the battery materials in powder, slurry, or granular form pass through this magnetic field, magnetic impurities are strongly attracted to the magnetic source. The force exerted on these magnetic particles far exceeds forces like gravity, fluid drag, or electrostatic forces acting on non - magnetic components of the battery materials. As a result, magnetic impurities deviate from the main flow path of the battery materials and are collected, while non - magnetic battery materials continue to move along the normal process stream, thus achieving the separation of magnetic impurities.
Separation Chamber: The separation chamber in lithium - ion battery - specific magnetic separators is carefully designed. It has a smooth - walled structure to minimize material adhesion, especially considering the high - value and often fine - grained nature of battery materials. Internal baffles and flow - guiding plates are precisely engineered to control the flow rate and direction of battery materials, ensuring that every part of the material stream is effectively exposed to the magnetic field. Some advanced models incorporate a matrix of fine - mesh ferromagnetic screens or specially designed ferromagnetic fibers within the chamber. This matrix further enhances the magnetic field gradient, enabling the capture of even the smallest and weakest - magnetic impurities, which could otherwise significantly impact the performance of lithium - ion batteries.
