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Magnesium alloy anode material and preparation method and application thereof

A kind of anode material, alloy anode technology, applied in the direction of primary battery electrode, battery electrode, fuel cell type half cell and primary cell type half cell, etc.

Inactive Publication Date: 2019-06-25
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve many problems existing in the existing magnesium anode materials, the present invention provides a magnesium alloy anode material and its preparation method and application

Method used

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  • Magnesium alloy anode material and preparation method and application thereof
  • Magnesium alloy anode material and preparation method and application thereof
  • Magnesium alloy anode material and preparation method and application thereof

Examples

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Embodiment 1

[0031] A magnesium alloy anode material, the chemical composition of the magnesium alloy is (mass percentage): 6% Al, 1% Ge, and the balance is magnesium.

[0032] The preparation method of the magnesium alloy anode material preparation method comprises the following steps:

[0033] (1) Pretreat the magnesium ingots and aluminum ingots respectively: cut the magnesium ingots and aluminum ingots into small pieces of 100mm×30mm×20mm respectively, and remove the oxides and oil stains on the surface according to the conventional method, and then wash them with absolute ethanol After cleaning, dry at a temperature of 90°C to constant weight to obtain pretreated magnesium ingots and aluminum ingots;

[0034] (2) Pretreatment of germanium grains: remove oxides and oil stains on the surface of germanium grains according to conventional methods, then clean them with absolute ethanol, and dry them at a temperature of 90°C to constant weight to obtain the pretreated germanium grains. Tre...

Embodiment 2

[0040]A magnesium alloy anode material, the alloy product is composed of the following components in weight percentage (g / g): 6% Al, 3% Ge, and the balance is magnesium.

[0041] The preparation steps are as in Example 1.

Embodiment 3

[0043] A magnesium alloy anode material, the alloy product is composed of the following components in weight percentage (g / g): 6% Al, 5% Ge, and the balance is magnesium.

[0044] The preparation steps are as in Example 1.

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Abstract

The invention relates to the field of magnesium alloy anode materials for magnesium air batteries, in particular to a magnesium alloy anode material and a preparation method and application thereof. The alloy anode material is composed of, by weight, 1%-9% of Al, 1%-6% of Ge and the balance magnesium. According to the magnesium alloy anode material, the air battery anode material with the excellent comprehensive discharge performance is obtained through the synergistic effect of the alloy elements including Al and Ge and solution treatment. Under the electric current density of 60 mA.cm<-2>, the average discharge potential measured through a timing potential method is between -1.726 V and -1.752 V, and the discharging efficiency reaches 70.9%-74.1%.

Description

technical field [0001] The invention relates to the field of magnesium alloy anode materials for magnesium-air batteries, in particular to a magnesium alloy anode material and a preparation method and application thereof. Background technique [0002] The standard electrode potentials of magnesium in acidic and alkaline media are -2.37V and -2.69V respectively, and the theoretical electrochemical equivalent of magnesium is 2.20Ah g -1 , so Mg is an ideal anode material in air batteries. Magnesium-air battery is a new type of semi-fuel cell. It uses magnesium anode as the active material and reacts with oxygen diffused through the cathode in the air to discharge. It has low cost, non-toxic, non-polluting, high specific power, and specific energy. Advanced advantages. Magnesium-air batteries are used as portable power sources in various small electronic products, such as mobile phones, video game consoles, digital cameras, laptop computers, etc.; as small and medium-sized mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/02C22C1/02C22F1/06H01M4/36H01M4/46H01M4/62H01M4/06H01M12/06
Inventor 刘笑达李栩卫英慧侯利锋杜华云刘宝胜
Owner TAIYUAN UNIV OF TECH
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