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TOB

XIAMEN TOB NEW ENERGY TECHNOLOGY CO.,LTD.

Provide a full set of battery equipment & materials solution.

Battery slurry mixer

About cathode active material mixing. We need to pay attention to the feeding sequence (add cathode active material and conductive agent slowly mix, then add binder), feeding time, feeding ratio, to strictly according to the process. Secondly, it is necessary to strictly control the rotation and rotation speed of equipment, vacuum degree and temperature of stirring. The slurry needs to be filtered when it is turned out, the purpose of filtration is to filter large particles, precipitation and removal of ferromagnetism and other substances. The influence of large particles coating to the final may lead to the battery from the risk of large or short circuit; The size of the ferromagnetic material too high will lead to the battery self-discharge too large and so on. 

The anode of lithium battery is composed of anode active materials, conductive agent, battery binder and dispersant. The conventional anode electrode system is a water mixing process (the solvent is deionized water), so the incoming material does not require drying.  After confirmation of the material, prepare glue solution (CMC powder and water composition) first. Pour the graphite powder and conductive agent (Carbon black, CNTs, Graphene, etc.) into the battery slurry mixer for dry mixing.  Finally, pour the SBR binder into the mixer. It is recommended to stir quickly within a short time.
The final viscosity (2000 ~ 4000 mPa. S), particle size (35um≤), solid content (40-70%), vacuum sifting (≤100 mesh). The specific process value needs to be different according to material properties, mixing process and so on. 

Battery slurry filter

Lithium ion battery slurry iron removal filter is suitable for lithium ion battery cathode and anode electrode slurry iron removal and filtration, before the electrode coating process and after materials mixing process. Iron removal filter can remove the small particle impurities containing iron in the battery slurry, and filtering the large particle impurities in the slurry, improve the purity of the slurry, and improve the consistency of the lithium ion battery pack. The equipment is equipped with iron removal and vacuum filter two functions.

Battery electrode coating machine

Lithium ion battery slurry iron removal filter is suitable for lithium ion battery cathode and anode electrode slurry iron removal and filtration, before the electrode coating process and after materials mixing process. Iron removal filter can remove the small particle impurities containing iron in the battery slurry, and filtering the large particle impurities in the slurry, improve the purity of the slurry, and improve the consistency of the lithium ion battery pack. The equipment is equipped with iron removal and vacuum filter two functions.

Electrode roller

After coating, the dry composite material coating is relatively loose. If used directly, it is easy to fall off and damage after being infiltrated by electrolyte. Roller machine can be used for tablet pressing. Generally, the positive electrode coating can be pressed to 15~60 μm. The stability, fastness and electrochemical properties of the electrode were improved after the tablet was pressed, and the test performance was better than that of the sample without press.

Electrode slitting machine

According to the requirements of various types or styles of batteries, the battery electrode of large size is cut into multiple electrode strips of small size by the battery electrode slitting machine, and then winding the small size electrode foil. Our slitting machine is used for the longitudinal slitting of cathode and anode electrode foil after lithium ion battery coating and rolling press. The battery electrode foil cut out by our slitting machine have neat edges, no burr, high dimensional accuracy and no powder removal, which is an important equipment in battery electrode processing.

Electrode die cutter

Battery electrode die-cutting is the subsequent processes after coating and rolling press, it is the process of punching and forming the battery electrode. Only the coin cell and pouch cell need the die-cutting process. As for the coin cell, the TOB-CP60 manual disc cutter is suitable for the coin cell laboratory research. As for the pouch cell, there are many models of the die-cutting machine to choose from, we can provide the small manual pouch cell die cutter for lab research(also we can customize the cutting mold according to your requirements), In addition, we can also provide other larger electrode die-cutting machine solutions for the pouch cell pilot line and production line according to your needs.

Tab ultrasonic welding machine

The ultrasonic spot welding machine is designed for prepare the battery cells of pouch cell in lab and production line. It can weld different layer copper foil and aluminum foil with different models. If you only need to weld 10 to 25 layers, you can choose model TOB-USW-2600W, it will be cheaper. If you need to weld 10 to 30 layers, please choose model TOB-USW-3000W. And the TOB-USW-4500W is suitable for 10 to 60 layers of copper foil and aluminum foil. Please contact us for more details.
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