• With the help of a rotating tool at least two separate draw materials are combined to form a so-called slurry.
• The production of slurry requires not only active materials but also conductive additives, solvents and binders.
• A distinction is made between mixing (dry mixing) and dispersing (wet mixing). In addition,the process can be performed under vacuum to avoid gas inclusions.
• The choice of the mixing and dispersing sequence must be adapted to the electrode design to be produced.

● The foil is coated with the slurry using an application tool (e.g.slotdie,doctorblade,aniloxroller).

● The foil is coated either continuously or intermittently in the coating direction.

● Generally, the top and bottom sides of the foil are coated sequentially.

● The coated foil is continuously transferred to the dryer. After the first drying process, the foil coated on one side is fedback to the coating system by a manual transport process.

● Afterwards, the second side is coated according to the process described.

● Separation is necessary for the production of the pouch cell and describes the separation of anode, cathode and separator sheets from the roll material (daughter rolls).

● The dried daughter rolls are unwound and fed to the separation tool.

● The cutting process is usually carried out with a shear cut (punchingtool) in a continuous process.

● Depending on the system concept, the individual sheets(coated on both sides) are stored in a magazine or transferred directly to the next process step.

● The formation describes the first charging and discharging processes of the battery cell.

● For formation,the cells are put in special good carriers in formation racks and contacted by spring-loaded contact pins.

● The cells are then charged or discharged according to precisely defined current and voltage curves.

● During formation, lithiumions are embedded in the crystal structure of the graphite on the anode side. Here the Solid Electrolyte Interface (SEI) is formed, which creates a interface layer between the electrolyte and the electrode.