Rechargeable aluminum ion cell and preparation method thereof

An aluminum-ion battery and ion technology, applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, battery electrodes, etc., can solve the problems of limited lithium resources, restrictions on the large-scale application of lithium-ion batteries, expensive costs and potential safety hazards, and achieve reserves Rich, good chemical stability and electrochemical stability, low price effect

Inactive Publication Date: 2014-12-24
UNIV OF SCI & TECH BEIJING +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, lithium resources on the earth are limited, high cost and safety hazards limit the large-scale application of lithium-ion batteries.

Method used

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  • Rechargeable aluminum ion cell and preparation method thereof
  • Rechargeable aluminum ion cell and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] Carbon paper is used as the cathode material. Flatten the carbon paper on a manual rolling machine, cut it into discs with a diameter of 16mm, scrub it with absolute ethanol, and dry it in an oven at 60°C for 2 hours. Take molybdenum foil with a thickness of 0.5mm, and cut out two molybdenum sheets with a size of 4mm×7mm. Drill holes with a diameter of 1 mm on the two molybdenum sheets. Place the carbon paper in the middle of the molybdenum sheet, and drill a hole with a diameter of 1mm thick according to the position of the hole on the molybdenum sheet. Carbon paper and molybdenum sheets are bound together with current collector wire to form the positive electrode. The positive electrode composed of carbon paper and molybdenum sheet was wrapped with glass fiber filter paper (GF / D, Whatman). Soak the high-purity aluminum sheet in absolute ethanol for 3 hours, and ultrasonically vibrate it, and use it as the negative electrode after drying. The ionic liquid was prepa...

Embodiment 2

[0028] Carbon black is used as the cathode material. Add a little ethanol to the carbon black to wet it, put it into a mold with a diameter of 20mm, press it with a pressure of 15MPa, bake it in an oven at 60°C for 1 hour, and then heat it to 800°C under vacuum for 2 hours and cool naturally. Then take a molybdenum foil with a thickness of 0.5mm, and cut out two molybdenum sheets with a size of 4mm×7mm. Drill holes with a diameter of 1 mm on the two molybdenum sheets. Place the carbon black electrode sheet in the middle of the molybdenum sheet, and drill a hole with a diameter of 1mm thick according to the position of the hole on the molybdenum sheet. Carbon paper and molybdenum sheets are bound together with current collector wire to form the positive electrode. The positive electrode composed of carbon paper and molybdenum sheet was wrapped with glass fiber filter paper (GF / D, Whatman). Soak the high-purity aluminum sheet in absolute ethanol for 3 hours, and ultrasonicall...

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Abstract

The invention discloses a rechargeable aluminum ion cell and a preparation method thereof and belongs to the field of energy reutilization. The cell comprises an anode, a cathode, a liquefied aluminum ion electrolyte and a diaphragm material, wherein the anode is made of graphite structure carbon material; the cathode is made of highly pure aluminum; the liquefied aluminum ion electrolyte is formed by mixing anhydrous aluminum chloride and 3-methyl imidazole compound; the molar ratio between the anhydrous aluminum chloride and the 3-methyl imidazole compound is from 1.1:1 to 1.6:1. The preparation process of the cell comprises the following steps: processing the graphite structure carbon material into laminar shapes; fixing the anode material with inertial metal foil as a current collector and covering the anode with the diaphragm material; washing highly pure aluminum cutting piece as the cathode; preparing the liquefied aluminum ion electrolyte which contains A13 plus ion capable of freely moving. The anode, the cathode and the liquefied aluminum ion electrolyte are assembled in a glove box to form the cell; the cell has the characteristics of high capacity and good circulating stability and is applicable to multiple fields such as electronic industry, communication industry and electric automobile.

Description

technical field [0001] The invention relates to a rechargeable aluminum ion battery and a preparation method thereof, belonging to the field of energy reuse. Background technique [0002] In recent years, with the gradual depletion of traditional energy sources, green renewable energy has become more and more popular. Among them, the research on various secondary batteries is in full swing. [0003] The lithium-ion battery proposed in the 1980s has developed rapidly due to its advantages such as small self-discharge, high specific capacity, good cycle performance and environmental friendliness, and the technology is now mature. However, limited lithium resources on the earth, high cost and potential safety hazards limit the large-scale application of lithium-ion batteries. There is an urgent need to design new battery systems to replace lithium-ion batteries. [0004] Aluminum is the most abundant metal element in the earth's crust. The cost of aluminum is much lower than...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/133H01M4/134H01M4/1393H01M4/1395H01M10/0563
CPCH01M4/56H01M4/583H01M10/054H01M10/0568H01M10/058H01M4/133H01M4/134Y02E60/10
Inventor 焦树强孙浩博王伟王俊香刘勇
Owner UNIV OF SCI & TECH BEIJING
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