Li-ion Battery Production Process

1.Mixing
Active materials,conductive auxiliaryagents, polymer binders,and organic solvents aremixed together to form anelectrode slurry.

2.Coating, Drying, and Calendering
The electrode slurry iscoated to copper andaluminum foil, dried, andcalendared.

3.Slitting

The electrode sheets areslit to each batterysize.

4.Winding or Stacking

Aseparator is insertedbetween the anode andcathode electrode sheets,and the electrode sheetsare wound or stackedtogether.

5.Tab Welding

The tabs of the layeredelectrode sheets arewelded together, andcollectors are welded to the tabs.

6.Terminal Welding

The covers and collectorsare welded together.

7.Assembly

8.Case Closing

The covers and cases are welded together.

9.Before Filling

10.Electroyte Filling

Electrolyte is filled via theelectrolyte port.

11.After Filling

The electrolyte port is closed.

12.Pre-charging

Following electrolyte fill, a charging current is fed to the cells for the first time.

13.Charging and Discharging

The cells are repeatedly charged and discharged.

14.Aging

The cells are stored for acertain period of time.

15.Pre-shipmentinspection

Quality is tested prior to shipment.