Redox device of a metal-air flow battery

A redox device of a metal-air flow battery, configured to reduce a product of the metal-air flow battery to metal and comprising:

• a container, having electrical conductivity;
• a rod, having electrical conductivity, inserted into the container, and electrically insulated from the container;
• a net, having electrical conductivity, connected to the rod, and separated from the container, wherein the net surrounding the rod gradually moves away from the rod in a spiral manner, the container receives an electrolyte solution containing the product originated from the metal-air flow battery, and the net is immersed in the electrolyte solution;
• a power supply, electrically connected to the rod, the net, and the container to form an electric loop via the electrolyte solution, wherein the container is connected to a negative electrode of the power supply, and the rod is connected to a positive electrode of the power supply;
• and
• an ultrasonic module, connected to the container and providing an ultrasonic vibration to the container, wherein the power supply provides a pulse current to the electric loop, so that the metal is electrochemically deposited from the electrolyte solution containing the product on the net, and during the electrochemical deposition, the metal is shaken off from the net via the ultrasonic vibration and suspended in the electrolyte solution.