Metal fuel cell and operation method thereof

Abstract

The invention discloses a metal fuel cell and an operation method thereof. The metal fuel cell comprises a fuel cell stack, an electrolyte working liquid box group, a first liquid separator and a second liquid separator; the working liquid box group comprises a plurality of working liquid boxes, and each working liquid box is provided with an electrolyte inlet and an electrolyte outlet; the first liquid separator comprises an electrolyte inlet and a plurality of electrolyte outlets, the electrolyte inlet of the first liquid separator is connected with an electrolyte outlet of the fuel cell stack, and the electrolyte outlets are in one-to-one connection with the electrolyte inlets of the working liquid boxes; the second liquid separator comprises a plurality of electrolyte inlets and an electrolyte outlet, the electrolyte inlets of the second liquid separator are in one-to-one connection with the electrolyte outlets of the working liquid boxes, and the electrolyte outlet is connected with the electrolyte inlet of the fuel cell stack. According to the cell, all electrolyte required in an operation period can be used in batches, so that the electrolyte used in the fuel cell stack is kept at a relatively fresh degree as far as possible, and the discharge performance of the cell is more stable.

Description

technical field [0001] The invention belongs to the field of fuel cells, in particular, it relates to a metal fuel cell and its operating method. Background technique [0002] A metal fuel cell is a device that can directly convert chemical energy into electrical energy. It has the advantages of low manufacturing cost, long shelf life, green environmental protection, safety, and quietness. It has attracted much attention in the fields of new energy vehicles, communication backup, and emergency power supplies. . At present, the research on metal fuel cells mainly focuses on the convenience of basic materials and overall structure. The liquid circuit circulation process of the fuel cell mainly uses the continuous operation of the pump to pump the electrolyte or reaction solution into the battery reaction chamber to complete the discharge process; the reacted electrolyte enters the electrolyte storage tank along the liquid return system for the next electrolysis Prepare for l...

AI Technical Summary

Problems solved by technology

Aluminum-air fuel cells are a type of metal fuel cells. At present, the electrolyte supply system in the product structure of aluminum-air batteries is mainly to store all the electrolyte in an electrolyte tank and continuously deliver the electrolyte to the This method can continue to output electric energy, but as the working time of the system advances, the concentration of the electrolytic waste liquid in the electrolyte tank gradually increases, resulting in a gradual and natural decline in the output power of the system.

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