The Action Texture of Lithium Dispersant

Lithium ion dispersant PAAS is a chemical additive used in the manufacturing process of lithium-ion batteries. Its main function is to improve the dispersion and stability of the positive electrode material of the battery, ensuring that the positive electrode active substance is evenly distributed in the battery.

Lithium ion dispersants are usually organic solvents or surfactants that have the following functions:

Dispersion effect: The active substances in the positive electrode materials of lithium batteries (such as lithium iron phosphate, lithium manganate, etc.) often exist in powder form and are prone to agglomeration. Dispersants can reduce the attraction between particles by acting on the surface of the powder, making it better dispersed in the battery slurry and improving the fluidity and uniformity of the positive electrode material slurry.

Stability effect: Lithium batteries will experience significant volume changes and internal stress during the charging and discharging process, which can easily lead to structural damage and particle aggregation of the positive electrode material. Dispersants can maintain the dispersed state of positive electrode materials during charging and discharging cycles, reduce structural damage and agglomeration, and improve the cycle life and safety performance of lithium batteries.

Wetting effect: The positive electrode material of lithium batteries usually needs to be mixed with conductive agents, binders, and other components to prepare a slurry, and then coated on the electrode current collector. Dispersants can improve the interaction between positive electrode materials and other components, enhance the wettability and adhesion of the slurry, and help to obtain better electrode structure and contact performance.

It should be noted that the selection and use of lithium dispersants need to be determined based on specific lithium-ion battery design requirements and positive electrode material characteristics. Different types and brands of dispersants may have different effects and applicability, so reasonable screening and evaluation are necessary in practical applications. At the same time, it is necessary to follow relevant safety operating procedures during use to ensure that it is safe and harmless to the environment and human body.