A marine floating magnesium-air battery with automatic electrolyte replacement

Abstract

The invention provides a marine floating type magnesium air battery capable of automatically replacing an electrolyte, and belongs to the field of a metal fuel cell. The marine floating type magnesium air battery comprises two modules of a seawater electrolyte replacement mechanism and a battery reaction cavity, wherein a plurality of air cavities and a plurality of seawater cavities are formed in the battery reaction cavity in an annular manner and are separated by negative electrode plates; and when the battery is deviated from a vertical position by sea wave surging, a pendulum bob of an energy absorption device in the mechanism generates a rotation torque relative to a main shaft, a ratchet and the main shaft are driven to rotate, the ratchet is forced to only do one-way rotation by pawls, the torque is increased by a series of speed reduction mechanism, a turntable is pushed to rotate, all seawater cavities are controlled to be sequentially opened and closed by bulges on the turntable, and thus, the operation that a reaction product magnesium hydroxide is automatically discharged due to the specific gravity of the magnesium hydroxide larger than that of seawater and the seawater electrolyte is automatically supplemented is completed. The floating type magnesium air battery is adaptive to a sea environment and can be used for providing a high-efficiency, general and portable sea power supply for an ocean defense device, marine observation and monitoring, an unmanned platform, marine law enforcement, military training and the like.

Description

technical field [0001] The invention belongs to the field of metal fuel cells, in particular to a marine floating magnesium-air battery. Background technique [0002] With the continuous development and popularization of electric machinery, lighting and electronic products, the demand for batteries is also increasing, and many new usage requirements are put forward. The current battery system mainly includes zinc-manganese dry batteries, lead-acid batteries, nickel-cadmium batteries and lithium batteries. Zinc-manganese dry batteries have serious mercury pollution, small capacity, and zinc is expensive; lead-acid batteries and nickel-cadmium batteries contain harmful elements; lithium batteries tend to precipitate metals on the negative electrode when they are discharged at high currents, posing safety hazards. Therefore, metal fuel cells have emerged as the times require in recent years, and have been well applied in many fields. They are new energy sources with great deve...

AI Technical Summary

Problems solved by technology

Magnesium-air batteries can be artificially exchanged electrolytes, but once they are put into use on the sea surface, human intervention becomes very difficult or even impossible, which greatly restricts the application of magnesium-air batteries in the ocean

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