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Magnesium alloy anode material, preparation method and application thereof and magnesium air battery

An anode material and air battery technology, applied in the field of magnesium alloys, can solve the problems of low discharge potential and achieve negative potential, low corrosion rate, and good electrochemical activation performance

Pending Publication Date: 2020-09-15
YANTAI NANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is still difficult to ensure that the reduction has a lower discharge potential while playing the above-mentioned role.

Method used

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  • Magnesium alloy anode material, preparation method and application thereof and magnesium air battery
  • Magnesium alloy anode material, preparation method and application thereof and magnesium air battery

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Experimental program
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Embodiment 1

[0023] The present invention adopts 6.6% Al, 3.0%, 0.6% Zn, and the balance is Mg, comprising the following steps:

[0024] S1, pretreatment, pretreatment of germanium grains, magnesium ingots and magnesium ingots respectively, cleaning with absolute ethanol to remove oxides and oil on the surface of germanium grains, magnesium ingots and magnesium ingots, and at a temperature of 90 ° C, drying;

[0025] S2, smelting and casting, taking raw materials according to the proportion, and 2 and SF 6 Melting under gas protection, place magnesium ingots and magnesium ingots in a furnace with a temperature of 650 ° C, and mix them with gas protection to melt them;

[0026] S3, add germanium particles after melting, raise the temperature to 900°C for sintering, and 2 and SF 6 Under gas protection, stir evenly, keep warm for 40 minutes, and pour into steel molds;

[0027] S4, the magnesium alloy hot-melt material in the mold is quenched to room temperature, and the magnesium alloy a...

Embodiment 2

[0029] The present invention adopts 7.7% Al, 3.5%, 0.7% Zn, and the balance is Mg, comprising the following steps:

[0030] S1, pretreatment, pretreatment of germanium grains, magnesium ingots and magnesium ingots respectively, cleaning with absolute ethanol to remove oxides and oil on the surface of germanium grains, magnesium ingots and magnesium ingots, and at a temperature of 90 ° C, drying;

[0031] S2, smelting and casting, taking raw materials according to the proportion, and 2 and SF 6 Melting under gas protection, place magnesium ingots and magnesium ingots in a furnace with a temperature of 700 ° C, and mix them with gas protection to melt them;

[0032] S3, add germanium particles after melting, raise the temperature to 950°C for sintering, and 2 and SF 6 Under gas protection, stir evenly, keep warm for 50 minutes, and pour into steel molds;

[0033] S4, the magnesium alloy hot-melt material in the mold is quenched to room temperature, and the magnesium alloy a...

Embodiment 3

[0035] The present invention adopts 8.8% Al, 4.0%, 0.8% Zn, and the balance is Mg, comprising the following steps:

[0036] S1, pretreatment, pretreatment of germanium grains, magnesium ingots and magnesium ingots respectively, cleaning with absolute ethanol to remove oxides and oil on the surface of germanium grains, magnesium ingots and magnesium ingots, and at a temperature of 90 ° C, drying;

[0037] S2, smelting and casting, taking raw materials according to the proportion, and 2 and SF 6 Melting under gas protection, place magnesium ingots and magnesium ingots in a furnace at a temperature of 720 ° C, and mix them with gas protection to melt them;

[0038] S3, adding germanium particles after melting, raising the temperature to 1000°C for sintering, and 2 and SF 6 Under gas protection, stir evenly, keep warm for 60 minutes, and pour into steel molds;

[0039] S4, the magnesium alloy hot-melt material in the mold is quenched to room temperature, and the magnesium all...

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Abstract

The invention discloses a magnesium alloy anode material, a preparation method and application thereof and a magnesium air battery. The magnesium alloy anode material comprises component materials, wherein the auxiliary metal raw materials include 5.5-8.0% of Al, 3.5-6.0% of Ge, 0.6-0.8% of Zn and the balance of Mg, the weight percentage of the auxiliary metal raw materials is as follows: M(Al):M(Ge):M(Zn)=11:5:1, and the purity of Mg is 99.99% or above. According to the magnesium alloy anode material, the preparation method and application thereof and the magnesium air battery, by adding thealloy element Al, the casting performance and mechanical properties of the magnesium alloy can be effectively improved, the active sites of the alloy are increased, and the alloy discharge activity isimproved; by adding the alloy element Ge, grains can be refined, the hydrogen evolution overpotential of the magnesium alloy can be improved, the self-corrosion hydrogen evolution reaction and galvanic corrosion of the magnesium alloy are inhibited, and the alloy discharge activity is improved.

Description

technical field [0001] The invention relates to the technical field of magnesium alloys, in particular to a magnesium alloy anode material, a preparation method and application thereof, and a magnesium-air battery. Background technique [0002] With the global energy crisis and environmental pollution becoming increasingly serious, countries all over the world are stepping up the development of new energy sources. Magnesium-air battery, as a kind of high specific energy green battery, has received extensive attention. Aiming at the problems of severe self-corrosion and large polarization of the anode. It is not enough to study the alloying of magnesium alloy anode materials. Adding corrosion inhibitors to the electrolyte is a convenient and efficient method. The amount of corrosion inhibitor added is generally very small, and will not cause major changes to the electrolyte system, which is very helpful for further improving the performance of the anode of the magnesium-air...

Claims

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Application Information

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IPC IPC(8): H01M4/90H01M4/88H01M12/08C22C23/02C22C1/02C22F1/06
CPCC22C1/02C22C23/02C22F1/002C22F1/06H01M4/8882H01M4/9041H01M12/08
Inventor 朱伶俐王文政刘慧房洪杰朱鹏程尹红霞
Owner YANTAI NANSHAN UNIV