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Magnesium battery electrolyte

An electrolyte and magnesium battery technology, which is applied in electrolytes, secondary batteries, organic electrolytes, etc., can solve the problems that magnesium ions cannot pass through and limit electrochemical activity, and achieve the effects of excellent performance, low cost, and easy preparation

Inactive Publication Date: 2018-03-13
杨昌恩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The passivation film formed on the surface of lithium is an excellent conductor of lithium ions, while the passivation film formed on the surface of magnesium is a poor conductor of magnesium ions, which prevents magnesium ions from passing through and limits its electrochemical activity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An electrolyte solution for a magnesium battery, the electrolyte comprising 2 parts of phenoxy magnesium aluminum chloride complex, 3 parts of dihydrocarbyl magnesium bromide, 2 parts of magnesium perchlorate, 1.2 parts of magnesium acetate, 4.5 parts of o-aminoaniline, 2.5 parts of 3,4-dimethoxyaniline, 10 parts of m-hydroxythiophenol, 8 parts of 3-ethoxythiophenol and ether solvent,

[0025] The hydrocarbon group is selected from aromatic hydrocarbons or aliphatic hydrocarbons, and the number of carbon atoms in the aliphatic hydrocarbons is 2;

[0026] The ether solvent is diethyl ether.

[0027] Wherein, the concentration of the magnesium battery electrolyte is 1.2 mol / l.

Embodiment 2

[0029] An electrolyte solution for a magnesium battery, the electrolyte comprising 3 parts of phenoxy magnesium aluminum chloride complex, 4 parts of dihydrocarbyl magnesium bromide, 3 parts of magnesium perchlorate, 2 parts of magnesium acetate, 5 parts of anthranilamine, 3 parts of 3,4-dimethoxyaniline, 10.5 parts of m-hydroxythiophenol, 9 parts of 3-ethoxythiophenol and ether solvent,

[0030] The hydrocarbon group is selected from aromatic hydrocarbons or aliphatic hydrocarbons, and the number of carbon atoms in the aliphatic hydrocarbons is 5;

[0031] Among them, the ether solvent is a mixture of methyl ethyl ether, 2-methyltetrahydrofuran, and diethylene glycol dimethyl ether, and its volume ratio is: 1:1:1.2.

[0032] Wherein, the concentration of the magnesium battery electrolyte is 1.5 mol / l.

Embodiment 3

[0034] An electrolyte solution for a magnesium battery, the electrolyte solution comprising 5 parts of phenoxy magnesium aluminum chloride complex, 6 parts of dihydrocarbyl magnesium bromide, 4 parts of magnesium perchlorate, 2.4 parts of magnesium acetate, 6.5 parts of o-aminoaniline, 3, 5 parts of 4-dimethoxyaniline, 11 parts of m-hydroxythiophenol, 12 parts of 3-ethoxythiophenol and ether solvent,

[0035] The hydrocarbon group is selected from aromatic hydrocarbons or aliphatic hydrocarbons, and the number of carbon atoms in the aliphatic hydrocarbons is 8;

[0036] Wherein, the ether solvent is a mixture of methyl ethyl ether, 2-methyltetrahydrofuran, and diethylene glycol dimethyl ether, and its volume ratio is: 1:1.5:1.5.

[0037] Wherein, the concentration of the magnesium battery electrolyte is 2 mol / l.

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Abstract

The invention relates to the technical field of a battery electrolyte, in particular to a magnesium battery electrolyte. The electrolyte comprises the constitutes based on parts by weight: 2-8 parts of phenoxyl-based magnesium-aluminum hydrogen complex, 3-9 parts of dialkyl-based magnesium bromide, 2-6 parts of magnesium perchlorate, 1.2-3.6 parts of magnesium acetate, 4.5-8.5 parts of aminodiphenylamine, 2.5-8 parts of 3, 4-dimethoxyaniline, 10-12 parts of m-Hydroxy thiophenol, 8-15 parts of 3-diethoxy thiophenol and ether solvent. In a magnesium battery provided by the invention, a traditional high-cost magnesium perchlorate can be used as an electrolyte, relatively low-cost acetate or magnesium perchlorate or a mixed solution of several salts also can be used, and the cost is greatly reduced; meanwhile, almost zero pollution is generated in the magnesium battery from production to application, and the magnesium battery conforms to green and environmental-friendly purpose of modern society; and the magnesium battery electrolyte is more excellent in performance and lower in cost, is easier to prepare and is used as the electrolyte of a rechargeable magnesium battery.

Description

technical field [0001] The invention relates to the technical field of battery electrolyte, in particular to a magnesium battery electrolyte. Background technique [0002] Magnesium is one of the most abundant light metal elements on the earth. In addition, it has good mechanical, physical and chemical properties. It is widely used in many fields today when energy shortages and environmental pollution seriously restrict the development of contemporary human society. Magnesium is in the diagonal position with lithium in the periodic table of elements, with similar ionic radii and similar chemical properties; and it is cheap, easy to process, and has higher safety. Therefore, the rechargeable magnesium battery with magnesium as the negative electrode has become a kind of Research hotspots of new battery systems. [0003] The key factor restricting the development of rechargeable magnesium batteries is mainly the different properties of the passivation film formed on the surfa...

Claims

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Application Information

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IPC IPC(8): H01M10/054H01M10/0568H01M10/0569
CPCH01M10/054H01M10/0568H01M10/0569H01M2300/0028H01M2300/0037Y02E60/10
Inventor 杨昌恩
Owner 杨昌恩
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