Electrolytic foil generating device for preparing porous copper foil through cathode roller and using method of electrolytic foil generating device

The invention discloses an electrolytic foil generating device for preparing porous copper foil through a cathode roller and a using method, the device comprises the cathode roller, the cathode roller is connected with an output shaft of a motor, and the motor is connected with an electric cabinet; a laser-beam drilling machine is transversely placed right in front of the roller surface of the cathode roller, a spraying pipe is arranged above the roller surface of the cathode roller, and the spraying pipe passes through a valve and is connected with a storage tank through a conveying pipe; the method comprises the following steps: firstly, adding an insulating acid-resistant epoxy resin coating into a storage tank, and controlling an electric cabinet to start a motor to enable the roller surface of the cathode roller to intermittently rotate, so that the roller surface of the cathode roller is completely punched at certain intervals; mist-shaped small liquid drops of insulating acid-resistant epoxy resin pain