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A kind of secondary aluminum battery and its electrolyte

A secondary aluminum battery and material technology, which is applied in the field of secondary aluminum batteries and secondary aluminum batteries with non-aqueous aluminum-containing electrolytes, can solve the problems of only primary batteries, and achieve safe use, high energy density, and environmental friendliness Effect

Inactive Publication Date: 2016-03-23
NANJING ZHONGCHU NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aluminum is a highly active metal, and its reduction potential is negative compared to hydrogen. It is impossible to electrodeposit aluminum in an aluminum salt solution, that is, all aluminum batteries that use an aluminum salt solution as an electrolyte cannot be charged and reduced, and can only be charged once. Battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Taking "aluminum trifluoromethanesulfonate-aluminum chloride / triethylamine hydrochloride ionic liquid-1,2-dichloroethane" electrolyte as an example, the total concentration of aluminum salt in the electrolyte is about 2.2mol / L, and the preparation The process is as follows:

[0040] ① Preparation of aluminum chloride / triethylamine hydrochloride ionic liquid

[0041] Under the protection of an inert gas, slowly add 0.18 mol of aluminum chloride to 0.1 mol of triethylamine hydrochloride, and stir for 2 hours to obtain an aluminum chloride / triethylamine hydrochloride ionic liquid, which is light yellow in color.

[0042] ② Preparation of aluminum chloride / triethylamine hydrochloride ionic liquid-1,2-dichloroethane mixed liquid

[0043] Add 1,2-dichloroethane to the above aluminum chloride / triethylamine hydrochloride ionic liquid until the total volume of the mixed solution is 100ml, and stir for 2 hours to obtain the aluminum chloride / triethylamine hydrochloride ionic liq...

Embodiment 2

[0047] Taking "aluminum bromide-aluminum chloride / 1-butyl-3-methylimidazolium chloride ionic liquid-dichloromethane" electrolyte as an example, the total concentration of aluminum salt in the electrolyte is about 2.2mol / L, and the preparation process is as follows:

[0048] ① Preparation of aluminum chloride / 1-butyl-3-methylimidazolium chloride ionic liquid

[0049] Under the protection of inert gas, slowly add 0.18mol aluminum chloride to 0.1mol 1-butyl-3-methylimidazole chloride and stir for 2 hours to obtain aluminum chloride / 1-butyl-3-methyl chloride Imidazolium ionic liquid, the liquid is light yellow.

[0050] ② Preparation of aluminum chloride / 1-butyl-3-methylimidazolium chloride liquid-dichloromethane mixed liquid

[0051] Add dichloromethane to the above-mentioned aluminum chloride / chloride 1-butyl-3-methylimidazolium ionic liquid until the total volume of the mixed solution is 100ml, and stir for 2 hours to obtain aluminum chloride / chloride 1-butyl-3-methylimidazoli...

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PUM

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Abstract

The invention discloses a secondary aluminium cell. The secondary aluminium cell comprises a cathode, an anode and electrolyte, wherein elemental sulfur or organosulfur compounds are selected as cathode active materials; metallic aluminium or aluminium alloys is / are selected as anode active materials; and non-aqueous aluminium-containing electrolyte formed by anhydrous aluminium salts, an ionic liquid and an organic solvent is used.

Description

technical field [0001] The invention belongs to the field of electrochemistry and new energy, and relates to a secondary aluminum battery, in particular to a secondary aluminum battery using a non-aqueous aluminum-containing electrolyte composed of anhydrous aluminum salt, ionic liquid and an organic solvent. Background technique [0002] With the rapid development of the global economy, the rapid development of technologies such as portable electronic devices, electric vehicles and space utilization, human beings have an increasingly urgent demand for high-energy and safe green chemical power sources. Since the development of lithium batteries, it has become the most practical chemical power source for portable electronic devices, and has been extended to the fields of power batteries and energy storage batteries. However, due to the limitations of the chemical activity and energy density of the lithium element itself, the large-scale development of lithium batteries has br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/054H01M10/056
CPCH01M10/054H01M10/0566H01M2300/0025Y02E60/10
Inventor 赵宇光骆建州
Owner NANJING ZHONGCHU NEW ENERGY
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