Battery Electrode Drying Process

The lithium battery electrode is a coating composed of particles. During the preparation of the electrode, a uniform wet slurry is applied to the metal current collector foil, and then the solvent in the dehumidification coating is removed by drying. Battery binder or dispersant as well as conductive agent such as carbon black are often added to the battery electrode slurry. Although the solid content is generally greater than 30%, the coating always undergoes some shrinkage during drying as the solvent evaporates. The solids approach each other in the wet coating, resulting in a porous dry electrode structure.


The drying process and coating process of lithium ion battery electrode are independent and interrelated. The properties of the coating affect the design and operation of the drying process. Coating speed, coating thickness determines the drying length. The coating has a leveling process in the drying process, which affects the uniformity of the coating. Therefore, coating in the design process can accurately use the best coating, drying process, balance the relationship between the two, and ultimately affect the overall technical performance of coating.


TOB New Energy can provide professional battery electrode coating machine with drying process for lithium-ion battery manufacturing. This lithium battery double layers extrusion coating machine is suitable for coating process of oily or water-based lithium iron phosphate, oily lithium cobaltate, ternary, lithium manganate, lithium nickel cobalt manganese oxide, oily or aqueous negative carbon graphite, lithium titanate and the like.



 We are not only selling the equipment or materials, but provide you an integrated battery solution. You can email us at tob.amy@tobmachine.com to discuss the details.