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Aluminium ion battery and preparation method thereof

An aluminum ion battery, aluminum ion technology, applied in the direction of electrolyte battery manufacturing, battery electrodes, secondary batteries, etc., can solve problems such as unfavorable commercial application, poor cycle performance, low specific capacity, etc., and achieve abundant reserves and thermal stability. Good, good wetting effect

Inactive Publication Date: 2014-05-28
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few related battery systems reported, which have low specific capacity and poor cycle performance, which is not conducive to commercial application.

Method used

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  • Aluminium ion battery and preparation method thereof
  • Aluminium ion battery and preparation method thereof
  • Aluminium ion battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] use VO 2 As the positive electrode active material, it is mixed with the conductive agent acetylene black and the binder polytetrafluoroethylene (PTFE) in a mass ratio of 75:15:10, added to absolute ethanol for dispersion, and ultrasonically vibrated at 60 °C oven to dry to gel, the gel evenly coated on stainless steel foil, as a hypervalent ion battery positive, it was dried in 120 °C oven for 12 hours, and then in the gloves filled with argon Assemble the battery in the box. The counter electrode is a high-purity metal aluminum sheet, which is soaked in absolute ethanol for 3 hours, ultrasonically vibrated, and dried to serve as the negative electrode. AlCl 3 and 1-butyl-3-methylimidazolium chloride in a mass ratio of 1:1 to synthesize an ionic liquid as the electrolyte of the hypervalent ion battery of the present invention. The diaphragm is fiberglass (GF / D, Whatman). After the battery is sealed, cleaned, packaged, edging and inspected, a super-price ion battery...

Embodiment 2

[0034] use Ta 2 o 5 As the positive electrode active material, it is mixed with conductive agent super carbon and binder polytetrafluoroethylene (PTFE) in a mass ratio of 80:10:10, added to absolute ethanol for dispersion, and ultrasonically vibrated at 60 ℃ oven to dry to gel, the gel evenly coated on the stainless steel foil, as a hypervalent ion battery cathode. After drying in an oven at 120 °C for 12 h, the cells were assembled in an argon-filled glove box. The counter electrode is a high-purity metal aluminum sheet. AlBr 3and 1-ethyl-3-methylimidazolium chloride in a mass ratio of 1.1:1 to synthesize an ionic liquid as the electrolyte of the hypervalent ion battery of the present invention. The diaphragm is polypropylene microporous diaphragm material. After the battery is sealed, cleaned, packaged, edging and inspected, a super-price ion battery product is obtained.

[0035]

Embodiment 3

[0037] with Nb 2 o 5 As the positive electrode active material, it is mixed with conductive carbon nanotubes and binder polyvinylidene fluoride (PVDF) at a mass ratio of 75:15:10, added to absolute ethanol for dispersion, and ultrasonically oscillated Finally, it is dried in an oven at 60°C until it becomes gel, and the gel is evenly coated on the nickel foam to serve as the positive electrode of the hypervalent ion battery. After drying in an oven at 120 °C for 12 h, the cells were assembled in an argon-filled glove box. The counter electrode is a high-purity metal aluminum sheet. AlCl 3 and 1-propyl-3-methylimidazolium chloride in a mass ratio of 1.2:1 to synthesize an ionic liquid as the electrolyte of the hypervalent ion battery of the present invention. The diaphragm is polyethylene microporous diaphragm material. After the battery is sealed, cleaned, packaged, edging and inspected, a super-price ion battery product is obtained.

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Abstract

The invention relates to an aluminium ion battery and a preparation method thereof and belongs to the field of aluminium ion batteries and preparation thereof. The aluminium ion battery comprises a positive electrode, a negative electrode and an aluminium ion electrolyte, wherein the positive electrode is made of transition metal oxide; the negative electrode is made of high purity aluminium; the battery comprises a diaphragm material when the aluminium ion electrolyte is in a liquid state. Since abundant aluminium elements are stored, the cost for the ion battery is greatly reduced; the safety performance is improved; the transition metal oxide is applicable to hypervalent ion batteries due to relative stability under the variable valence states and different valence states. The ion liquid serves as the electrolyte for the hypervalent ion battery, so that aluminium ion is high in conductivity, good in heat stability, broad in electrochemical window and high in chemical stability and almost incapable of reacting with the positive electrode materials, the negative electrode materials, a current collector, a binder and a diaphragm in a battery system and capable of maintaining the liquid state in a board temperature range. The aluminium ion battery can be applied to various fields, such as electronic industries, communication industries and electric vehicles and the like.

Description

technical field [0001] The invention belongs to the field of ion batteries and preparation thereof, and in particular relates to a preparation technology of a novel supervalent ion battery system, in particular to a supervalent ion battery based on aluminum ion intercalation and deintercalation and a preparation method thereof. [0002] Background technique [0003] At present, non-renewable fossil fuels such as coal, oil and natural gas are increasingly depleted, environmental pollution and greenhouse effect are increasing, and energy crisis and environmental protection have become two major problems facing the world. Therefore, the development of new green energy sources and energy storage devices has attracted more and more attention. As a new type of energy storage device, lithium-ion batteries are more and more favored by researchers because of their advantages such as small self-discharge, high specific capacity, good cycle performance and environmental friendliness, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/054H01M10/058
CPCH01M4/38H01M10/054H01M10/058Y02E60/10Y02P70/50
Inventor 焦树强王伟胡丽文孙禾孙浩博赵飞
Owner UNIV OF SCI & TECH BEIJING
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