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Ultrasound-assisted metal-air battery working method and system

An air battery and ultrasonic-assisted technology, which is applied in the direction of fuel cell half-cells and primary battery-type half-cells, can solve the problems of limiting the output current and output power density of metal-air batteries, so as to improve the discharge power and current Good density, lifting speed and reliability

Active Publication Date: 2021-04-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because the slow oxygen reduction reaction limits the output current of metal-air batteries, which in turn limits their output power density.

Method used

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  • Ultrasound-assisted metal-air battery working method and system
  • Ultrasound-assisted metal-air battery working method and system
  • Ultrasound-assisted metal-air battery working method and system

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with specific examples.

[0025] refer to figure 2 As shown, a system using the above-mentioned ultrasonic-assisted metal-air battery working method has a specific structure as follows, an ultrasonic transducer 1, a transducer drive circuit 2, an air electrode 3, an electrolyte 4, and a metal electrode plate 5. The front end of the ultrasonic transducer 1 is provided with a focusing head, which can focus the ultrasonic radiation generated by the ultrasonic transducer 1. The air electrode 3 is located at the ultrasonic radiation focus below the ultrasonic transducer 1. The air electrode 3 is a metal sheet electrode , the position of the air electrode 3 is at the surface of the electrolyte 4, part of it is in contact with the air, part of it is in contact with the electrolyte 4, and the metal electrode plate 5 is partly or completely submerged inside the electrolyte.

[0026] When working, the ultrason...

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Abstract

The invention discloses a method and a device for increasing the output power of a metal-air battery. The method utilizes the catalytic effect of ultrasonic waves on the oxygen reduction reaction at the junction of air-electrolyte-catalyst to increase the output power of the battery. A related battery system includes an ultrasonic transducer, a transducer driving circuit, an air electrode, an electrolyte, and a metal anode, and is characterized in that the ultrasonic transducer is used to generate ultrasonic waves at the cathode oxygen reduction reaction site of a metal-air battery to convert more More oxygen molecules are driven to the cathode oxygen reduction reaction site, increasing the discharge current and output power of the metal-air battery.

Description

technical field [0001] The invention relates to a working method and system of an ultrasonic-assisted metal-air battery, which belongs to the intersection field of ultrasonic engineering and energy engineering. Background technique [0002] Since metal-air batteries entered people's field of vision, due to their high energy density and capacity, stable discharge characteristics, low dependence on load and temperature, and low manufacturing costs, they have been widely used in electric vehicles, military communication equipment, portable batteries, etc. Equipment, unmanned aerial vehicles, vehicles, submarines, surface ships and spacecraft all have great application potential, so they are receiving more and more attention. Although metal-air batteries have high energy density (or specific energy), their slow oxygen reduction reaction has become a bottleneck restricting their further development. This is because the slow oxygen reduction reaction limits the output current of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M12/06
CPCH01M12/06
Inventor 胡俊辉罗钊
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS