What Kind of Battery Slurry Mixer is Suitable for the Electrode Preparation?

Electrode Preparation is a key part in the whole battery manufacturing process, the quality of electrode directly affects the next step. The battery slurry preparation is a non - Newtonian high viscosity fluid which is formed by mixing the active materials, binders, solvents and other powders evenly. This slurry requires a certain viscosity, good fluidity and a sufficiently small particle size. So, What Kind of Battery Slurry Mixer is Suitable for the Electrode Preparation?

First, the mixer must have sufficient capacity.

Battery manufacturing requires a large number of electrodes and requires a good consistency of the battery cells. So it has a high requirement for consistency of battery slurry. In the actual mixing process, each batch of slurry is not exactly the same due to the mixing operation, time, feeding order and other reasons, even under the same technological conditions, the viscosity of each batch slurry may not be the same. Therefore, the battery mixing machine is required to have a certain capacity, and the large mixer can achieve 2000L at present. TOB New Energy can offer all kinds of battery slurry mixing machine for lithium-ion battery manufacturing and researching. The 200L capacity vacuum planetary mixing machine for lithium battery production line is excellent for preparing LiCoO3, LiFePO4, Phosphors and ceramic slurry without gas bubble. And the processed material results in the better dispersion and uniformity.

Secondly, a good vacuum sealing system is necessary.

Why do battery mixing machines need a good vacuum seal system?

（1）In the whole stirring process, due to the frequent collision and friction between materials, as well as the friction between the agitator and materials, more heat will be generated, resulting in temperature rise. Temperature rise can cause part solvent volatilize, produce pungent odour, such as NMP, PVDF and so on, organic gas has a great harm to human body.

（2）In the premixing stage of dry powder, if the closed system is not good enough, dust will be scattered, damaging the working environment, affecting product quality and causing injuries to employees.

（3）There is a large gap in the powder interior, after mixing with the solvent, there must be a lot of bubbles in the slurry interior, so the slurry needs to be treated to remove bubbles, and then coating the electrode foil. Otherwise there will be bubble burst in the process of coating, surface density and slurry off the phenomenon. It is extremely detrimental to battery performance.

We, TOB New Energy, could provide all kinds of battery slurry mixing equipment. If you are doing lithium-ion battery researching, I would recommend the small capacity laboratory mixer. It could be 150ml, 500ml, etc. If it is used for lithium-ion battery manufacturing in the factory and i would recommend you some large capacity mixer.

This is TOB New Energy, We are not only selling the equipment or materials, but provide you an integrated battery solution.

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