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A solar-assisted rechargeable zinc-air battery with low charging potential

A zinc-air battery and solar energy technology, which is applied in the field of rechargeable zinc-air batteries, can solve problems such as limited solar energy utilization, and achieve energy efficiency, charge and discharge, and high energy efficiency

Active Publication Date: 2022-07-15
重庆新申世纪新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the utilization of solar energy is limited, and there is no previous research on whether the principle of photoelectric catalysis to promote the OER reaction process is applicable to zinc-air batteries

Method used

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  • A solar-assisted rechargeable zinc-air battery with low charging potential
  • A solar-assisted rechargeable zinc-air battery with low charging potential
  • A solar-assisted rechargeable zinc-air battery with low charging potential

Examples

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Embodiment 1

[0055] This embodiment relates to a solar-assisted rechargeable zinc-air battery with low charging potential. By introducing a photoelectrode into a zinc-air battery and acting as an air cathode, a two-electrode light-assisted rechargeable zinc-air battery is designed to reduce overpotential by using solar energy, achieve high energy efficiency, and convert and utilize solar energy. The schematic diagram of the battery is shown in figure 1 As shown, the lighted side is the air electrode.

[0056] The preparation method of the solar-assisted rechargeable zinc-air battery with low charging potential of the present embodiment specifically includes the following steps:

[0057] (1) Preparation of air electrode

[0058] Preparation of bismuth vanadate photoelectrode:

[0059] Firstly, the conductive base material used is porous FTO prepared by micromachining technology (the length of the F-doped conductive glass is 3-4 cm and the width is 1-2 cm). The prepared porous FTO was wa...

Embodiment 2

[0066] This embodiment relates to a solar-assisted rechargeable zinc-air battery with low charging potential. By introducing a photoelectrode into a zinc-air battery and acting as an air cathode, a two-electrode light-assisted rechargeable zinc-air battery is designed to reduce overpotential by using solar energy, achieve high energy efficiency, and convert and utilize solar energy. The schematic diagram of the battery is shown in figure 1 As shown, the lighted side is the air electrode.

[0067] The preparation method of the solar-assisted rechargeable zinc-air battery with low charging potential of the present embodiment specifically includes the following steps:

[0068] (1) Preparation of air electrode

[0069] Preparation of iron oxide photoelectrodes:

[0070] The conductive base material used, that is, the porous FTO prepared by micromachining technology (the F-doped conductive glass is 3-4 cm long and 1-2 cm wide) was cleaned in an ultrasonic cleaning machine with e...

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Abstract

The invention discloses a solar-assisted rechargeable zinc-air battery with low charging potential. The air cathode of the zinc-air battery is an iron oxide photoelectrode based on porous FTO or a bismuth vanadate photoelectrode based on porous FTO. By using the semiconductor material as the air cathode and the photoelectrode at the same time, the invention realizes the use of solar energy to reduce the charging voltage of the zinc-air battery: under the charge and discharge of medium and small current, the utilization of solar energy is realized, the low charging voltage is obtained, and the zinc-air battery is improved. The energy efficiency of the battery.

Description

technical field [0001] The invention belongs to the field of batteries, and more particularly, relates to a solar-assisted rechargeable zinc-air battery with low charging potential. Background technique [0002] Among many energy storage devices, metal-air batteries have high energy density because they utilize oxygen in the air to participate in the reaction. Among them, the zinc-air battery has a high energy density (1086Wh﹒kg –1 ), and its low cost and environmental friendliness have attracted widespread attention. At present, primary zinc-air batteries have been commercialized in hearing aids, traffic lights, etc. However, the development of rechargeable zinc-air batteries still faces challenges. Rechargeable zinc-air batteries are mainly composed of zinc anode, electrolyte, and air cathode. The air cathode consists of a porous current collector and a catalyst. The reaction formula of the zinc-air battery is: [0003] Zinc electrode: [0004] [0005] Air ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M12/08H01M4/86H01M4/88H01M4/90
CPCH01M12/08H01M4/8605H01M4/8853H01M4/885H01M4/9016Y02E60/10
Inventor 钟澄刘晓瑞刘杰丁佳邓意达韩晓鹏胡文彬
Owner 重庆新申世纪新材料科技有限公司
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