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Aluminum-air battery electrolyte as well as preparation method and application thereof

An aluminum-air battery and electrolyte technology, which is applied in the directions of alkaline electrolyte, aqueous electrolyte, fuel cell-type half-cell and primary battery-type half-cell, etc. Widespread and other problems, to achieve the effect of delaying hydrogen evolution corrosion and high open circuit potential

Inactive Publication Date: 2020-09-08
HUNAN SEIRIOS NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a serious self-corrosion problem in the aluminum anode in the alkaline electrolyte, which affects the discharge performance and service life of the battery.
Adding corrosion inhibitors to the electrolyte is an effective way to improve the above problems. The existing corrosion inhibitors are difficult to take into account the anode activity while inhibiting the self-corrosion of aluminum anodes, and their applicability is not wide.

Method used

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  • Aluminum-air battery electrolyte as well as preparation method and application thereof
  • Aluminum-air battery electrolyte as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare 4mol / L potassium hydroxide aqueous solution, add 0.2g / L sodium stannate, ultrasonically dissolve, add 0.2g / L potassium oleate, stir to dissolve, then add 0.2g / L lauryl glucoside, heat up to 45°C , stir to dissolve, cool to room temperature, finally add zinc oxide 0.08g / L, stir to dissolve, and make an electrolyte.

Embodiment 2

[0019] Prepare 4mol / L potassium hydroxide aqueous solution, add sodium stannate 0.2g / L, ultrasonically dissolve, add potassium oleate 0.3g / L, stir to dissolve, then add lauryl glucoside 0.3g / L, heat up to 45°C , stir to dissolve, cool to room temperature, finally add zinc oxide 0.05g / L, stir to dissolve, and make an electrolyte.

Embodiment 3

[0021] Prepare 4mol / L potassium hydroxide aqueous solution, add 0.1g / L sodium stannate, ultrasonically dissolve, add 0.1g / L potassium oleate, stir to dissolve, then add 0.2g / L lauryl glucoside, heat up to 45°C , stir to dissolve, cool to room temperature, finally add zinc oxide 0.05g / L, stir to dissolve, and make an electrolyte.

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Abstract

The invention discloses an aluminum-air battery electrolyte as well as a preparation method and application thereof. The aluminum-air battery electrolyte comprises the following components: 2-6mol / L of potassium hydroxide, 0.1-0.5 g / L of lauryl glucoside, 0.1-0.3 g / L of sodium stannate, 0.1-0.3 g / L of potassium oleate and 0.05-0.1 g / L of zinc oxide. All the components are matched, hydrogen evolution corrosion of the aluminum plate can be greatly delayed, and high open-circuit potential is guaranteed.

Description

technical field [0001] The present application relates to the technical field of metal fuel cells, in particular to an aluminum-air battery electrolyte, its preparation method and application. Background technique [0002] Alkaline electrolytes are mostly used in aluminum-air batteries, which can better ensure battery efficiency than neutral electrolytes. However, aluminum anodes have serious self-corrosion problems in alkaline electrolytes, which affect the discharge performance and service life of batteries. Adding corrosion inhibitors to the electrolyte is an effective way to improve the above problems. The existing corrosion inhibitors are difficult to take into account the anode activity while inhibiting the self-corrosion of aluminum anodes, and their applicability is not wide. Contents of the invention [0003] In order to solve the technical problems existing in the prior art, an aluminum-air battery electrolyte is provided, which can reduce hydrogen evolution cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06
CPCH01M12/06H01M2300/0014
Inventor 易祖成吴辉
Owner HUNAN SEIRIOS NEW MATERIAL TECH CO LTD
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