Viscosity control apparatus for electrode slurry and coating apparatus for electrode slurry using the same

A coating apparatus for an electrode slurry, comprising:

• a mixing unit configured to stir an electrode slurry;
• a dispersion unit into which the electrode slurry is introduced, and which is configured to disperse a material contained in the electrode slurry and re-supply a dispersed slurry to the mixing unit;
• a first circulation line going from the mixing unit to the dispersion unit and, via a separate path, from the dispersion unit back to the mixing unit and configured to connect the mixing unit and the dispersion unit to circulate the electrode slurry;
• a viscosity measurement unit connected to the first circulation line so that the electrode slurry having passed through the dispersion unit is introduced and configured to measure a viscosity of the electrode slurry;
• a control unit configured to receive a signal of the viscosity measurement unit and control the dispersion unit to re-operate to re-disperse the electrode slurry and supply the re-dispersed electrode slurry to the mixing unit when the viscosity of the electrode slurry is not a normal viscosity that is in a predetermined range;
• and
• a discharge portion connected to the mixing unit and configured to discharge and coat the electrode slurry of a normal viscosity on an electrode plate.