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Aluminum-alloy anode material for battery and preparation method of aluminum-alloy anode material

An anode material and manufacturing method technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as poor open circuit voltage and corrosion resistance, limited application, etc. The effect of chemical polarization

Inactive Publication Date: 2016-01-13
WUXI JIABANG ELECTRIC POWER PIPE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this anode material is used as a battery anode, its open circuit voltage and corrosion resistance are not good, which limits its application.

Method used

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  • Aluminum-alloy anode material for battery and preparation method of aluminum-alloy anode material
  • Aluminum-alloy anode material for battery and preparation method of aluminum-alloy anode material
  • Aluminum-alloy anode material for battery and preparation method of aluminum-alloy anode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] According to the composition of Example 1 mass percentage in Table 1, the aluminum ingot is first added to the graphite crucible and melted in a resistance furnace. After melting, fully stir with a graphite rod to obtain aluminum alloy liquid; add hexachloroethane to the aluminum alloy liquid to remove slag, and pass in argon to degas. minute. After degassing and slag removal, let stand for 1-5 minutes, and cast into flat ingots.

[0042] The cast flat ingot was uniformly annealed at a temperature of 550°C for 120 minutes, water-cooled, face milled and then cold-rolled at a temperature of 200°C to a finished aluminum alloy anode material with a thickness of 0.5mm.

Embodiment 2

[0044] According to the composition of Example 2 in Table 1 by mass percentage, the aluminum ingot is first added to the graphite crucible and melted in a resistance furnace. After melting, fully stir with a graphite rod to obtain aluminum alloy liquid; add hexachloroethane to the aluminum alloy liquid to remove slag, and pass in argon gas for degassing. minute. After degassing and slag removal, let stand for 1-5 minutes, and cast into flat ingots.

[0045] The cast flat ingot was uniformly annealed at a temperature of 560°C for 60 minutes, water-cooled, and after face milling, the aluminum alloy flat ingot was cold-rolled at a temperature of 180°C to a finished aluminum alloy anode material with a thickness of 0.6mm.

Embodiment 3

[0047] According to the composition of Example 3 in Table 1 by mass percentage, the aluminum ingot is first added to the graphite crucible and melted in a resistance furnace. After melting, fully stir with a graphite rod to obtain aluminum alloy liquid; add hexachloroethane to the aluminum alloy liquid to remove slag, and pass in argon gas for degassing. The gauge pressure of argon gas is 0.2 MPa, and the ventilation time is 3-5 minute. After degassing and slag removal, let stand for 1-5 minutes, and cast into flat ingots.

[0048] The cast flat ingot was homogenized and annealed for 180 minutes at a temperature of 530°C, water-cooled, and after face milling, the aluminum alloy flat ingot was cold-rolled at a temperature of 220°C to a finished aluminum alloy anode material with a thickness of 0.4mm.

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Abstract

The invention provides an aluminum-alloy anode material for a battery and a preparation method of the aluminum-alloy anode material, belonging to the technical field of an alloy material and solving the problem of non-ideal electrochemical performance of the traditional aluminum-alloy anode material for the battery. The aluminum-alloy anode material comprises the following constitutes based on mass: 0.5-1.0% of Mg, 0.1-1.0% of Ga, 0.5-1.0% of Bi, 0.05-0.8% of Ce, 0.005-1.0% of Pb, 0.005-0.05% of Ca and the balance of Al. The aluminum-alloy anode material for the battery has the advantages of high open circuit potential, low self-corrosion rate, high utilization rate of a positive electrode and the like.

Description

technical field [0001] The invention belongs to the technical field of alloy materials, and relates to an anode material for batteries, in particular to an aluminum alloy anode material for batteries and a manufacturing method thereof. Background technique [0002] Aluminum alloy has its unique advantages as the anode material of the battery: (1) High electrochemical equivalent. The electrochemical equivalent of aluminum is 2980A h / kg, which is the metal with the highest mass specific energy except lithium; (2) The electrode potential is relatively negative, and its standard electrode potential is -2.35V. For anode materials, the more negative the potential, the better , the potential of aluminum is negative to that of zinc, so it can provide more power; (3) aluminum is rich in resources and low in price; (4) it has a wide range of applications. For batteries, it can be made into alkaline, neutral and organic batteries . Therefore, aluminum is an excellent battery anode ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/46
CPCH01M4/463Y02E60/10
Inventor 徐德生
Owner WUXI JIABANG ELECTRIC POWER PIPE FACTORY
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