Electrolyte corrosion inhibitor, electrolyte for aluminum air cell and aluminum air cell

An aluminum-air battery and electrolyte technology, which is applied in the direction of fuel cell half-cells and primary battery-type half-cells, can solve the problems of not meeting environmental protection requirements, hindering the commercial application of aluminum-air batteries, and being expensive. Good economic and environmental benefits, reduced hydrogen evolution self-corrosion rate, low price effect

Inactive Publication Date: 2015-12-09
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, compared with zinc anode materials, aluminum anode materials for air batteries have the primary problem of self-corrosion in alkaline solution, which greatly reduces the utilization rate of anodes and hinders the commercial application of aluminum-air batteries.
Although most inorganic corrosion inhibitors can reduce the self-corrosion rate of aluminum alloy

Method used

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  • Electrolyte corrosion inhibitor, electrolyte for aluminum air cell and aluminum air cell

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Experimental program
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Effect test

Embodiment 1

[0030] The electrolyte corrosion inhibitor of this embodiment is an ethanol solution of lavender essential oil, wherein the volume percentage of lavender essential oil is 45%.

[0031] The electrolyte solution for the aluminum-air battery of this embodiment contains components of the following concentrations: 3 mol / L of sodium hydroxide, 60 ppm (v / v) of the above electrolyte corrosion inhibitor, and the balance is distilled water. The preparation method of the electrolytic solution is as follows: take the sodium hydroxide of the formula quantity and add distilled water, stir the solution to make a sodium hydroxide solution; add the lavender essential oil corrosion inhibitor of the formula quantity into the sodium hydroxide solution, then add the remaining distilled water, stir Evenly, that is.

[0032] The aluminum-air battery of this embodiment includes an aluminum anode, an air cathode, and an electrolyte, and the electrolyte is the above-mentioned electrolyte for an aluminu...

Embodiment 2

[0037] The electrolyte corrosion inhibitor of this embodiment is an ethanol solution of lavender essential oil, wherein the volume percentage of lavender essential oil is 60%.

[0038] The electrolyte solution for the aluminum-air battery of this embodiment contains the following components at the following concentrations: 3 mol / L of sodium hydroxide, 80 ppm (v / v) of the above electrolyte corrosion inhibitor, and the balance is distilled water. The preparation method of the electrolytic solution is as follows: take the sodium hydroxide of the formula quantity and add distilled water, stir the solution to make a sodium hydroxide solution; add the lavender essential oil corrosion inhibitor of the formula quantity into the sodium hydroxide solution, then add the remaining distilled water, stir Evenly, that is.

[0039] The aluminum-air battery of this embodiment includes an aluminum anode, an air cathode, and an electrolyte, and the electrolyte is the above-mentioned electrolyte ...

Embodiment 3

[0047] The electrolyte corrosion inhibitor of this embodiment is an ethanol solution of lavender essential oil, wherein the volume percentage of lavender essential oil is 20%.

[0048] The electrolyte solution for the aluminum-air battery of this embodiment contains the following components at the following concentrations: 4 mol / L of sodium hydroxide, 20 ppm (v / v) of the above electrolyte corrosion inhibitor, and the balance is distilled water. The preparation method of the electrolytic solution is as follows: take the sodium hydroxide of the formula quantity and add distilled water, stir the solution to make a sodium hydroxide solution; add the lavender essential oil corrosion inhibitor of the formula quantity into the sodium hydroxide solution, then add the remaining distilled water, stir Evenly, that is.

[0049] The aluminum-air battery of this embodiment includes an aluminum anode, an air cathode, and an electrolyte, and the electrolyte is the above-mentioned electrolyte ...

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Abstract

The invention discloses an electrolyte corrosion inhibitor, an electrolyte for aluminum air cell and an aluminum air cell. The electrolyte corrosion inhibitor is an ethanol solution of lavender essential oil, and the volume percentage content of lavender essential oil is 10%-60%. The main components of lavender essential oil comprise linalool, linalyl acetate, eucalyptol, beta-ocimene, 4-terpineol and camphor. Group molecules contain lone pair electrons, oxygen atoms in the groups are absorbed on a metal surface through the lone pair electrons, an insoluble complex layer is formed, thus the metal surface is separated from an aqueous solution, and a corrosion inhibition function is achieved. The electrolyte corrosion inhibitor prepared from lavender essential oil extracted from plants and ethanol is a novel green environmental protection corrosion inhibitor, and has advantages of low cost, low toxicity or no toxicity, no environmental pollution and the like. The electrolyte corrosion inhibitor is added in an electrolyte, a self corrosion rate of an aluminum anode can be lowered remarkably, the electrochemical performance can be raised, and the electrolyte corrosion inhibitor has good economic benefits and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of aluminum-air batteries, and specifically relates to an electrolyte slow-release agent, and also relates to an electrolyte for an aluminum-air battery and an aluminum-air battery using the electrolyte. Background technique [0002] Metal-air battery is a new generation of green battery, which has low manufacturing cost, high specific energy, recyclable raw materials, and superior performance. At present, metal-air batteries that have been studied more include zinc-air batteries, aluminum-air batteries, and lithium-air batteries, etc., and only zinc-air batteries are closest to industrialization. In the potential series, aluminum is more active than zinc and can obtain a higher battery voltage; an aluminum atom can release three electrons, while a zinc atom can release two electrons, and aluminum can increase the energy of the battery; in addition, aluminum reserves Abundant, low price, so the research pro...

Claims

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Application Information

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IPC IPC(8): H01M12/06
CPCH01M12/06
Inventor 马景灵文九巴朱宏喜王喜然姚怀熊毅任凤章祝要民刘淑英
Owner HENAN UNIV OF SCI & TECH
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