Electrolysis device capable of controlling movement of oxygen bubbles by adopting magnetoelectric coupling

Abstract

The invention relates to an electrolysis device capable of controlling movement of oxygen bubbles by adopting magnetoelectric coupling, belonging to the field of electrochemical techniques such as energy accumulation and metal deposition electrolysis, extraction and electrolytic synthesis. The device comprises an electrolytic cell; two electrodes are arranged on corresponding positions on two opposite sides of the electrolytic cell; an electrolyte is contained in the electrolytic cell; and the device further comprises a magnet which clings to the position corresponding to the positive electrode or the negative electrode on the outer surface of the electrolytic cell, and the magnet is used for driving the oxygen bubbles to move directionally along the surface of the positive electrode in the electrolysis process. By adopting the device, the problem that the oxygen bubbles gather is solved; the composition and the temperature of the electrolyte are more uniform; the dendritic growth is restrained, so that the metal deposition surface quality is improved, and the energy is saved; and furthermore, the electrolyte is driven to move directionally. The electrolysis device can be widely applied to the fields of charging-type metal-air batteries, fuel cell regeneration, water electrolysis, metal electro-deposition, electro-extraction and electrolytic synthesis and the like, and can be also applied to the field of object directional movement.

Description

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

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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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