Three-pole zinc-air fuel cell

Abstract

The invention discloses a three-pole type zinc-air fuel cell, comprising a housing, an air electrode, a metal layer, a zinc material, a diaphragm layer and an electrolyte, wherein the air electrode isused as a discharge positive electrode in a chemical discharge reaction; The metal layer is used as the charging cathode in the chemical charging reaction; Zinc material is used as negative electrodefor chemical discharge with air electrode layer or chemical charge with metal layer; The electrolyte electrically connects the air electrode, the metal layer and the zinc material to each other; Thediaphragm layer can separate the air electrode, the metal layer and the zinc material from each other and supply the electrolyte through the diaphragm layer. The height of the electrolyte in the accommodation space is changed by an input or output action, so that the structure to which the electrolyte can be contacted is different, thereby changing the opening, closing, charging or discharging state of the three-pole type zinc-air fuel cell provided by the invention.

Description

technical field [0001] The present invention relates to a fuel cell for redox reaction between zinc material and air, especially a kind of fuel cell that has both electrolyte and zinc material as reaction raw materials, and can be electrically connected with other external electronic products through a three-pole connector. Zinc air fuel cell. Background technique [0002] Fuel cells can directly convert chemical energy into electrical energy. Fuel cells have high-density energy during the production process. The energy is generated by the potential difference between the positive and negative electrodes, and it is almost non-polluting to the environment. Therefore, Both academia and industry are investing in the research field of fuel cells, hoping to have a revolutionary improvement in the global carbon (petrochemical) emission cycle phenomenon, energy shortage, and environmental pollution. [0003] The interior of the existing Zinc-Air Fuel Cell (ZAFC) is mostly composed...

AI Technical Summary

Problems solved by technology

[0003] The interior of the existing Zinc-Air Fuel Cell (ZAFC) is mostly composed of an air electrode, a zinc anode, a liquid storage space, and an electrolyte. Since the air electrode and the zinc anode are directly immersed in the electrolyte Among them, if it is not used or used for a long time, it will cause the polarization, passivation and surface dendrite growth of the zinc anode, which will lead to further rapid corrosion of the zinc anode and the battery of the zinc-air fuel cell. Detrimental effects such as reduced performance, acidification of the electrolyte, and shortened battery life

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