Metal-air fuel cell with self-sealing cathode easy to fix

Abstract

The invention discloses a metal-air fuel cell with a self-sealing cathode easy to fix. The metal-air fuel cell comprises a battery shell, a metal anode assembly, a cathode, a cathode pressing plate, an anode leading-out piece and a cathode leading-out piece. The battery shell comprises two opposite open type end faces, a first sealing groove is formed in a frame of each open type end face, a firstsealing piece is arranged in each first sealing groove, and a cathode maintaining structure is arranged in each open type end face. The metal anode is inserted into the battery shell through the anode through groove, and the anode base is fixed to the end face of the battery shell. The cathode pressing plate covers the open end surface and is clamped through a buckle, the cathode pressing plate is of a frame structure, a second sealing groove is formed in the outer frame of the cathode pressing plate, a second sealing piece is arranged in the second sealing groove, and the cathode is clampedbetween the first sealing piece and the second sealing piece. And the open end surface is hermetically connected with the cathode through a sealing groove and a sealing piece. The cathode material disclosed by the invention can be simply and quickly fixed, can be used for multiple times, and is durable in sealing.

Description

technical field [0001] The invention relates to the technical field, in particular to a metal-air fuel cell with a self-sealing cathode that is easily fixed. Background technique [0002] Under the dual crises of increasingly severe energy crisis and environmental pollution, it is imminent to find new energy sources to replace traditional fossil energy sources. Under such circumstances, various new energy technologies have been developed rapidly, and chemical energy has received great attention. In traditional chemical batteries, although lithium-ion batteries have the advantages of high voltage and high power density, due to their high cost, poor safety, and low energy density, it is difficult to meet the needs of various scenarios. Hydrogen-oxygen fuel cells have excellent performance and environmental friendliness, and there are a lot of hydroxides in nature, and the raw materials are easy to obtain. However, storage of hydrogen is difficult, and the global reserves of ...

AI Technical Summary

Problems solved by technology

However, lithium-ion batteries also have disadvantages: first, the energy density is low, and when used as a power battery, the cruising range of electric vehicles will be short, which cannot meet the needs of daily life; second, it has high requirements for the use environment, and it cannot be charged below 0 °C , below -10°C, it cannot work

The gluing process is relatively complicated, and the waiting time for the sealant to function is long, which increases the labor cost and time cost of battery manufacturing

Moreover, as the service time of the battery increases, the sealant may have problems such as aging and deformation, resulting in a decrease in the sealing performance of the fuel cell and leakage, which will affect the use of the battery.

The way of bolt connection is too cumbersome, not only the labor cost is high, but also the manufacturing cost of the battery is increased, which seriously affects the mass production of the battery

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