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Aluminum air battery and electrolyte thereof

An aluminum-air battery and electrolyte technology, which is applied in secondary batteries, fuel cell-type half-cells, primary battery-type half-cells, circuits, etc. problem, to achieve the effect of improved cycle performance, easy preparation and simple formula

Pending Publication Date: 2022-07-08
星铝新能源科技(徐州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, the present invention provides an aluminum-air battery and its electrolyte to solve the technical problems of the current aluminum-air battery, such as easy corrosion of aluminum electrodes, low cycle life, and fast capacity decay.

Method used

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  • Aluminum air battery and electrolyte thereof
  • Aluminum air battery and electrolyte thereof
  • Aluminum air battery and electrolyte thereof

Examples

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Effect test

Embodiment 1

[0021] The electrolyte for the aluminum-air battery of the present embodiment is composed of sodium hydroxide, polyacrylic acid and water, and the specific preparation method is as follows:

[0022] Dissolve 100 grams of sodium hydroxide in 900 ml of water, stir for 30 minutes, add 5 grams of polyacrylic acid, and continue stirring for 2 hours to obtain an electrolyte, which is designated as target electrolyte 1.

Embodiment 2

[0030] The electrolyte for the aluminum-air battery of the present embodiment is composed of sodium hydroxide, polyacrylic acid and water, and the specific preparation method is as follows:

[0031] Dissolve 10 grams of sodium hydroxide and 40 grams of potassium hydroxide in 950 ml of water, stir for 30 minutes, add 10 grams of polyacrylic acid, and continue stirring for 2 hours to obtain an electrolyte, which is designated as target electrolyte 2.

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Abstract

The electrolyte for the aluminum air battery is prepared by mixing an additive and an alkaline solution, the additive is polyacrylic acid, and the alkaline solution is an aqueous solution of sodium hydroxide or / and potassium hydroxide. According to the invention, polyacrylic acid is taken as an additive of the electrolyte of the aluminum air battery and can be spontaneously adsorbed to the surface of an aluminum negative electrode of the aluminum air battery to form a layer of polymeric membrane, and the polymeric membrane is beneficial to protecting the aluminum negative electrode from being corroded by a strong alkaline electrolyte, so that the performance of the aluminum air battery is improved; the electrolyte for the aluminum air battery is simple in formula and easy to prepare, and according to an electrochemical test, the cycle life and the cycle stability of the aluminum air battery prepared from the electrolyte are effectively improved.

Description

technical field [0001] The invention relates to the technical field of aluminum-air batteries, in particular to an aluminum-air battery and an electrolyte thereof. Background technique [0002] Lithium-ion batteries have already achieved great success in portable electronic devices and are emerging in the field of large-scale energy storage such as electric vehicles. However, in terms of safety, unstable lithium ions and organic electrolytes are prone to fire or even explosion, which brings certain safety hazards, and the harsh production conditions make the cost of lithium ion batteries very expensive. [0003] Aluminum-air battery is a cheap, light and powerful energy source. Compared with traditional lithium-ion battery, it has the following advantages: First, aluminum-air battery is safer, more stable and environmentally friendly than lithium-ion battery; second, The reserves of aluminum are very rich, and the preparation process is simpler than that of lithium batterie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06H01M10/0567
CPCH01M12/06H01M10/0567Y02E60/10
Inventor 龙江涛靳东晓
Owner 星铝新能源科技(徐州)有限公司
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