Preparation of Electrodes with Adjustable Film Coater

Firstly, the synthesized cathode material NVTP is fully ground into powder, and dried in a vacuum oven. Weighing NVTP powder (active material), PVDF (bonding agent) and acetylene black (conductive agent) in the ratio of 8:1:1 by mass ratio are mixed in 20mL weighing bottle, add appropriate amount of NMP (N- Methyl pyrrolidone ), adjust the appropriate viscosity, and then vigorously stir on a magnetic stirrer for 12h. Spread out the cut aluminum foil and wipe it clean, pour the stirred paste on the surface of the aluminum foil of the current collector, adjust the thickness of the coating film of the adjustable film coating and carry out coating. Afterwards, place the coated aluminum foil in a vacuum Drying Oven at 80°C for 12 hours, and take out the punched sheet after cooling. After determining the quality of the pole piece, vacuum dry it again for 12 hours at a temperature of 80 ℃. After cooling, take it out and place it in a glove box in an argon environment, and carry out CR2032 type button battery assembly. The electrolyte is 1M NaClO Dissolved in EC/DEC (1:1 ) and 5% FEC. The final battery was subjected to .

Remarks for the northern and southern tides: to prepare a paste sample of about 150 microns, it is suitable to choose an Micrometer Applicator. However, because the substrate is aluminum foil, the feature is that it is easy to be uneven. Use a vacuum adsorption film coating machine to flatten the aluminum foil, and the film prepared with an adjustable Film Applicator will be more beautiful.