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A kind of secondary aluminum battery and its non-aqueous electrolyte

A secondary aluminum battery and electrolyte technology, applied in the direction of non-aqueous electrolyte, secondary battery, organic electrolyte, etc., can solve the problems of being unable to charge and restore, and can only be a primary battery, and achieve stable properties, large capacity, 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

[0004] Aluminum is a very active metal, and its reduction potential is negative than that of hydrogen, so 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 primary battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take the "aluminum chloride-lithium aluminum hydride-tetrahydrofuran-benzene" electrolyte as an example, in which the molar ratio of aluminum chloride to lithium aluminum hydride is 3:1, the concentration of aluminum chloride is about 0.9mol / L, and the volume fraction of benzene is about 40%.

[0035] Preparation of aluminum chloride-lithium aluminum hydride-tetrahydrofuran-benzene electrolyte:

[0036] ①Preparation of lithium aluminum hydride-tetrahydrofuran solution

[0037] Under the protection of an inert gas, 0.03 mol of lithium aluminum hydride was dissolved in 45 ml of tetrahydrofuran, and stirred for 12 hours to obtain a lithium aluminum hydride-tetrahydrofuran solution, which was a milky white turbid solution.

[0038] ②Preparation of Aluminum Chloride-THF-Benzene Solution

[0039] Under the protection of an inert gas, add 0.09 mol of anhydrous aluminum chloride to 40 ml of benzene, and slowly add 15 ml of tetrahydrofuran dropwise while stirring. With the add...

Embodiment 2

[0043] Take "triethylaluminum-sodium fluoride-toluene" electrolyte as an example.

[0044] Preparation of triethylaluminum-sodium fluoride-toluene electrolyte:

[0045] ① Preparation of triethylaluminum-sodium fluoride solution

[0046] Under the protection of an inert gas, 0.05 mol of dry sodium fluoride was dissolved in 0.1 mol of triethylaluminum, heated and stirred for 2 hours to obtain a triethylaluminum-sodium fluoride solution.

[0047] ②Preparation of triethylaluminum-sodium fluoride-toluene electrolyte

[0048] Under the protection of an inert gas, the above triethylaluminum-sodium fluoride solution was slowly added into 0.1675 mol of toluene, and stirred for 2 hours to prepare a triethylaluminum-sodium fluoride-toluene electrolyte.

Embodiment 3

[0050] Take the "aluminum chloride-dimethyl sulfoxide-lithium chloride" electrolyte as an example.

[0051] Preparation of Aluminum Chloride-DMSO-LiCl Electrolyte:

[0052] ① Preparation of aluminum chloride-dimethyl sulfoxide solution

[0053] Under the protection of an inert gas, 0.05 mol of aluminum chloride was dissolved in 100 ml of dimethyl sulfoxide, and stirred for 4 hours to obtain an aluminum chloride-dimethyl sulfoxide solution.

[0054] ② Preparation of aluminum chloride-dimethyl sulfoxide-lithium chloride electrolyte

[0055]Under the protection of inert gas, slowly add 0.01mol lithium chloride to the above aluminum chloride-dimethyl sulfoxide solution while stirring, stir at 50°C for 12 hours, and cool to prepare aluminum chloride-dimethyl sulfoxide-lithium chloride electrolyte.

[0056] Using mesoporous carbon-sulfur composite material (sulfur mass fraction 60%) as the positive electrode material, adding the conductive agent acetylene black and the binder PVD...

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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 the cathode active materials; metallic aluminium or aluminium alloys are selected as the anode active materials; and non-aqueous aluminium-containing electrolyte formed by anhydrous aluminium salt, organic solvents and additives 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. . 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 brought unsolvable safety and battery capacity issues. problems faced. ...

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 赵宇光骆建洲
Owner NANJING ZHONGCHU NEW ENERGY
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