A kind of aluminum alloy anode material for air battery, preparation method and aluminum air battery

A technology of aluminum-air batteries and aluminum alloys, which is applied in battery electrodes, fuel cell half-cells, primary battery-type half-cells, circuits, etc. The commercial application of air batteries, the reduction of anode utilization rate, etc., achieve the effects of excellent alkali corrosion resistance, excellent electrochemical performance, and low self-corrosion rate

Inactive Publication Date: 2018-02-13
HENAN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] At present, compared with zinc anode materials, aluminum anode materials for air batteries have the primary problem of self-corrosion in alkaline solution, which greatly reduces the utilization rate of anodes and hinders the commercial application of aluminum-air batteries.
However, when the above-mentioned aluminum alloy materials are used as anodes of aluminum-air batteries, the self-corrosion rate in alkaline solutions is still relatively high, and the open circuit potential is insufficient, which cannot meet the requirements of high current density discharge of alkaline aluminum-air batteries.

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  • A kind of aluminum alloy anode material for air battery, preparation method and aluminum air battery

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Embodiment 1

[0033] The aluminum alloy anode material for an air battery in this embodiment is composed of the following components in weight percent: Zn 4%, Ga 0.08%, In 0.06%, and the balance is Al.

[0034] The preparation method of the aluminum alloy anode material for the air battery of the present embodiment comprises the following steps:

[0035] 1) Under the protection of argon, place the aluminum ingot in the crucible of a ZGJL0.01-40-4 induction melting furnace, heat it to 690°C to melt the aluminum ingot, add zinc ingots, gallium grains and indium grains, and heat it while heating Rotate the container to melt and mix the metal evenly, continue heating to 750°C and keep it warm for 5 minutes, then pour into block ingots;

[0036] 2) The block ingot obtained in step 1) is rolled at 180° C. into a sheet material with a thickness of 3 mm to obtain the aluminum alloy anode material for the air battery.

[0037] The aluminum-air battery of this embodiment includes an aluminum alloy a...

Embodiment 2

[0042] The aluminum alloy anode material for an air battery in this embodiment is composed of the following components in weight percent: Zn 6%, Ga 1%, In 1.5%, and the balance is Al.

[0043] The preparation method of the aluminum alloy anode material for the air battery of the present embodiment comprises the following steps:

[0044] 1) Under the protection of argon, place the aluminum ingot in the crucible of a ZGJL0.01-40-4 induction melting furnace, heat it to 700°C to melt the aluminum ingot, add zinc ingots, gallium grains and indium grains, and heat it while heating Rotate the container to melt and mix the metal evenly, continue heating to 730°C and keep it warm for 5 minutes, then pour into block ingots;

[0045] 2) The block ingot obtained in step 1) is rolled at 160° C. into a sheet material with a thickness of 1 mm to obtain the aluminum alloy anode material for an air battery.

[0046] The aluminum-air battery of this embodiment includes an aluminum alloy anode,...

Embodiment 3

[0051] The aluminum alloy anode material for an air battery in this embodiment is composed of the following components in weight percent: Zn 3%, Ga 3%, In 0.01%, and the balance is Al.

[0052] The preparation method of the aluminum alloy anode material for the air battery of the present embodiment comprises the following steps:

[0053] 1) Under the protection of argon, place the aluminum ingot in the crucible of a ZGJL0.01-40-4 induction melting furnace, heat it to 710°C to melt the aluminum ingot, add zinc ingots, gallium grains and indium grains, and heat it while heating Rotate the container to melt and mix the metal evenly, continue heating to 760°C and keep it warm for 6 minutes, then pour into block ingots;

[0054] 2) Rolling the block ingot obtained in step 1) into a sheet material with a thickness of 3 mm at 200° C. to obtain the aluminum alloy anode material for the air battery.

[0055] The aluminum-air battery of this embodiment includes an aluminum alloy anode,...

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Abstract

The invention discloses an aluminum alloy anode material for an air cell, a preparation method and an aluminum air cell. The aluminum alloy anode material is composed of the following ingredients, by weight, 0.05%-6% of Zn, 0.05%-4% of Ga and 0.01%-2% of In, the balance being Al. Zn, Ga and In elements are added in the aluminum alloy anode material, the electrochemical activity is good, the self-corrosion rate is low, the open circuit potential is less than and equal to -1.76V (vs.SHE) in an alkaline electrolyte, and an electromotive force of a monomer cell is more than 1.84V. Through alloying, the electrochemical performance of the anode is raised obviously, the self-corrosion rate is lowered, the self-corrosion rate is less than 5.12mg / (cm<2>*h), and surface corrosion is uniform. The aluminum alloy anode material has excellent performances, and is a novel aluminum alloy anode material suitable for usage in an alkaline electrolyte.

Description

technical field [0001] The invention belongs to the technical field of aluminum-air batteries, and specifically relates to an aluminum alloy anode material for an air battery, and also relates to a preparation method of an aluminum alloy anode material for an air battery and an aluminum-air battery using the anode material. Background technique [0002] Metal-air battery is a new generation of green battery, which has low manufacturing cost, high specific energy, recyclable raw materials, and superior performance. At present, metal-air batteries that have been studied more include zinc-air batteries, aluminum-air batteries, and lithium-air batteries, etc., and only zinc-air batteries are closest to industrialization. In the potential series, aluminum is more active than zinc and can obtain a higher battery voltage; an aluminum atom can release three electrons, while a zinc atom can release two electrons, and aluminum can increase the energy of the battery; in addition, alumi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M12/06H01M4/46
CPCH01M4/362H01M4/463H01M12/06Y02E60/10
Inventor 马景灵文九巴朱宏喜王喜然姚怀熊毅任凤章祝要民刘淑英
Owner HENAN UNIV OF SCI & TECH
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