Aluminum air battery anode material and preparing method thereof

An aluminum-air battery and anode material technology, which is applied to battery electrodes, fuel cell-type half-cells and primary-cell-type half-cells, circuits, etc., can solve the problem that the efficiency has not been effectively improved, the composition structure is complex, and the electrochemical performance is poor. and other problems, to achieve the effect of low cost, simple preparation process and low self-corrosion rate

Active Publication Date: 2019-02-12
KUNMING UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Nisancioglu et al. have done a lot of research on a series of binary, multi-component and commercial aluminum alloys, and found that after the Al-Pb alloy was quenched at 600°C for 60 minutes, the electrode potential shifted negatively, at 0.1m A/cm 2 When the current density is discharged, the potential negative shift of Al-0.003Pb alloy after heat treatment reaches 300mV. This is mainly because after high-temperature heat treatment,

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  • Aluminum air battery anode material and preparing method thereof
  • Aluminum air battery anode material and preparing method thereof
  • Aluminum air battery anode material and preparing method thereof

Examples

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[0020] Example 1

[0021] An aluminum-air battery anode material, the composition and mass percentage content of which are: bismuth (Bi) 0.10wt%, lead (Pb) 0.15wt%, gallium (Ga) 0.02wt%, and the balance is Al.

[0022] The method for preparing the anode material of the aluminum-air battery in this embodiment includes the following steps:

[0023] (1) Ingredients: Weigh Bi, Pb, Ga, Al according to the material components. The weighing operation is completed in a vacuum glove box at 5°C. The weighed material is wrapped in aluminum foil with a purity of 99.99% and stored in vacuum. In the drying box, the vacuum degree of the vacuum drying box is 60 Pa, the temperature is -5°C, the purity of Bi, Pb, Ga, and Al raw materials are all 99.99%, and the weight of aluminum foil is included in the total weight of aluminum;

[0024] (2) Melting: Preheat the graphite crucible to 200°C in a nitrogen atmosphere, add aluminum ingots, continue heating to 740°C, keep the aluminum melted for 45 minutes, ...

Example Embodiment

[0027] Example 2

[0028] An aluminum-air battery anode material, the composition and mass percentage content of which are: bismuth (Bi) 0.15wt%, lead (Pb) 0.10wt%, gallium (Ga) 0.035wt%, and the balance is Al.

[0029] The method for preparing the anode material of the aluminum-air battery in this embodiment includes the following steps:

[0030] (1) Ingredients: Weigh Bi, Pb, Ga, Al according to the material components. The weighing operation is completed in a vacuum glove box at 6°C. The weighed material is wrapped in aluminum foil with a purity of 99.99% and stored in vacuum. In the drying box, the vacuum degree of the vacuum drying box is 70Pa, the temperature is 0°C, the purity of Bi, Pb, Ga, Al raw materials are all 99.99%, and the weight of aluminum foil is included in the total weight of aluminum;

[0031] (2) Melting: Preheat the graphite crucible to 180°C in a nitrogen atmosphere, add aluminum ingots, continue heating to 720°C, and keep the aluminum melted for 50 minutes, a...

Example Embodiment

[0034] Example 3

[0035] An aluminum-air battery anode material, the composition and mass percentage content of which are: bismuth (Bi) 0.12wt%, lead (Pb) 0.12wt%, gallium (Ga) 0.015wt%, and the balance is Al.

[0036] The method for preparing the anode material of the aluminum-air battery in this embodiment includes the following steps:

[0037] (1) Ingredients: Weigh Bi, Pb, Ga, Al according to the material components. The weighing operation is completed in a vacuum glove box at 8°C. The weighed material is wrapped in aluminum foil with a purity of 99.99% and stored in vacuum. In the drying box, the vacuum degree of the vacuum drying box is 55 Pa, the temperature is -2°C, the purity of Bi, Pb, Ga, Al raw materials are all 99.99%, and the weight of aluminum foil is included in the total weight of aluminum;

[0038] (2) Melting: Preheat the graphite crucible to 230°C under argon atmosphere, add aluminum ingots, continue heating to 760°C, keep the aluminum melted for 60 minutes, add 5...

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Abstract

The invention discloses an aluminum air battery anode material and a preparing method thereof. The aluminum air battery anode material comprises, by mass percent, 0.10%-0.15% of bismuth, 0.10%-0.15% of lead, 0.015%-0.035% of gallium and the balance aluminum. The anode material is prepared through the machining processes of mixing, smelting, rolling and heat treatment. The anode material componentdesign is reasonable, the cost is low, the product performance is good, the preparing process is simple, and the aluminum air battery anode material and the preparing method of the aluminum air battery anode material are suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to an aluminum-air battery anode material and a preparation method thereof, and belongs to the technical field of development and preparation of new anode materials for high-power chemical power sources. Background technique [0002] Aluminum-air batteries have a series of advantages such as high specific energy, long cycle life, safety and reliability, and environmental friendliness. However, the passivation film on the surface of the aluminum substrate reduces the anode activation ability, and the self-corrosion rate of the aluminum anode is high. These two major defects It directly affects the rapid development and commercialization of aluminum-air batteries. Aluminum itself is an extremely active metal. When it is exposed to the air, a dense oxide film will be formed on the surface. During the electrode polarization process of aluminum, a layer of oxide film will also be formed on the surface. This layer of oxide film will hi...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C1/06C22C21/00C22F1/02C22F1/04H01M4/46H01M12/06B21B37/16
CPCB21B37/16C22C1/026C22C1/06C22C21/00C22F1/02C22F1/04H01M4/463H01M12/06Y02E60/10
Inventor 周生刚泉贵岭徐阳曹勇焦增凯罗开亮马双双彭斌
Owner KUNMING UNIV OF SCI & TECH
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