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Al-Ga-In-Sn-Bi anode material for aluminum air batteries and preparation method and application thereof

An aluminum-air battery and anode material technology, which is applied to battery electrodes, fuel cell-type half-cells and primary battery-type half-cells, circuits, etc. High self-corrosion rate and other problems, to achieve excellent electrochemical performance and corrosion resistance, improve activation efficiency, and stabilize the effect of open circuit potential

Inactive Publication Date: 2019-08-30
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the electrode reaction, this layer of oxide film hinders the contact between the aluminum electrode and the electrolyte, and has a passivation effect on the dissol

Method used

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  • Al-Ga-In-Sn-Bi anode material for aluminum air batteries and preparation method and application thereof
  • Al-Ga-In-Sn-Bi anode material for aluminum air batteries and preparation method and application thereof

Examples

Experimental program
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Embodiment 1-5

[0024] Preparation of Al-Ga-In-Sn-Bi Alloy

[0025] (1) The alloy composition is shown in Table 1:

[0026] The alloy element composition mass percent (wt %) of table 1 embodiment 1-8

[0027] Metal Al Ga In sn Bi Example 1 97 2 0.3 0.2 0.5 Example 2 98 1 0.4 0.3 0.3 Example 3 98 1.2 0.4 0.3 0.1 Example 4 99 0.6 0.15 0.1 0.15 Example 5 99 0.5 0.2 0.15 0.15 Example 6 97 1.75 1 0.25 0 Example 7 97 1.75 0.25 1 0 Example 8 97 1.75 0.625 0.625 0

[0028] (2) Preparation process:

[0029] Raw material: wherein the raw material of embodiment 1-8 is each metal of purity ≥99.99wt%.

[0030] The weighed metal is placed in a high-temperature furnace under nitrogen protection, sintered at 800°C, and heated at 800°C for 2 hours. Stir and cast after heat preservation, cool naturally in the air after casting, and pack after cooling.

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Abstract

The invention discloses an Al-Ga-In-Sn-Bi anode material for aluminum air batteries. The alloy elements Ga, In, Sn and Bi added to the anode material can form a liquid alloy at the working temperatureof aluminum air batteries. Optionally, the anode material includes the following components by weight: 0.5-2 wt% of Ga, 0.15-1 wt% of In, 0.2-1 wt% of Sn and 0-0.5 wt% of Bi, with the balance being aluminum. An aluminum anode with high activity and good corrosion resistance is prepared. The invention also discloses a preparation method and an application of the Al-Ga-In-Sn-Bi anode material for aluminum air batteries.

Description

technical field [0001] The invention relates to the technical field of aluminum-air batteries, in particular to an aluminum-air battery anode material and a preparation method thereof. Background technique [0002] In today's world, energy and environmental issues (such as the smog weather that often occurs in recent years) are increasingly paid attention to by people. Air pollution, greenhouse effect and other issues caused by traditional fossil fuel combustion have attracted increasing attention, and the shortage of these non-renewable mineral resources has made people strive to develop new clean energy. Metal-air batteries have attracted people's attention due to their environmental friendliness, high specific energy density, and good cycle life, and are known as "green energy for the 21st century". [0003] Commonly used anode materials for metal-air batteries include Li, Al, Zn, Fe, Mg, Ca, etc. Among these anode materials, the content of Al in the earth's crust is se...

Claims

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Application Information

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IPC IPC(8): H01M4/88H01M4/90H01M12/06
CPCH01M4/8825H01M4/9041H01M12/06
Inventor 高钱王宏超安琦
Owner JILIN UNIV