An electrolysis device using magnetoelectric coupling to control the movement of oxygen bubbles

Abstract

The invention relates to an electrolysis device which uses magnetoelectric coupling to control the movement of oxygen bubbles, and belongs to the field of energy storage, metal deposition electrolysis, purification and electrolytic synthesis electrochemical technology. A pair of electrodes, the electrolytic cell is filled with electrolyte, and also includes a magnet on the outer surface of the electrolytic cell corresponding to the anode or cathode, which is used to make the oxygen bubbles move along the surface of the anode during the electrolysis process. The device not only solves the problem of oxygen bubble accumulation, but also promotes more uniform composition and temperature of the electrolyte, curbs dendrite growth, improves the surface quality of metal deposition and saves energy; in addition, it can also promote the directional movement of the electrolyte. The invention can be widely used in the fields of rechargeable metal-air batteries, fuel cell regeneration, water electrolysis, metal electrodeposition, electrolytic purification and electrolytic synthesis, and can also be used in the field of directional movement of objects.

Description

technical field [0001] The invention belongs to the technical fields of energy storage, metal deposition electrolysis, purification and electrolytic synthesis, and particularly relates to a device for controlling the movement of oxygen bubbles in the process of oxygen evolution reaction by using magnetoelectric coupling. Background technique [0002] The oxygen evolution reaction is an electrochemical reaction that occurs at the electrode-electrolyte two-phase interface. The kinetics of the oxygen evolution reaction is not only related to the activity of the catalyst, but also closely related to the rapid removal of air bubbles on the electrode surface. Under pure electric field conditions, the general oxygen evolution reaction device is composed of a rectangular electrolytic cell 1, an anode 3, a cathode 4, and an electrolyte 2, such as figure 1 As shown, wherein, the internal size of the rectangular electrolytic cell 1 is 250 mm × 500 mm × 70 mm, the nickel mesh of 50 mm...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of oxygen bubble adhesion on the electrode surface during the oxygen evolution reaction process, and propose an electrolysis device that uses magnetoelectric coupling to control the movement of oxygen bubbles, which not only solves the problem of oxygen bubble accumulation, but also promotes the composition of the electrolyte , the temperature is more uniform, curbing the growth of dendrites, improving the surface quality of metal deposition and saving energy; in addition, it can also promote the directional movement of the electrolyte

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