Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of aluminum alloy anode material and its casting method and application

An anode material, aluminum alloy technology, applied in battery electrodes, structural parts, electrical components, etc., can solve the problems of low electrochemical activity, low anode utilization rate, high hydrogen evolution overpotential, etc., and achieve low hydrogen evolution self-corrosion rate, Reasonable ratio and good electrochemical performance

Active Publication Date: 2018-11-13
HARBIN INST OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of low anode utilization rate and low electrochemical activity in existing aluminum-air batteries, the present invention provides an aluminum alloy anode material suitable for aluminum-air batteries and its casting method and application. The aluminum alloy anode The material has a lower overpotential and a higher hydrogen evolution overpotential, enabling the electrode to achieve high electrochemical activity and anode utilization during battery operation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of aluminum alloy anode material and its casting method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this embodiment, the aluminum alloy anode material is cast from Pb, Sn, Ga, Ti and Al, and the specific casting steps are as follows:

[0031] 1. Refined alloy:

[0032] (1) Dosing according to the mass percentage of each component in Example 1 in Table 1;

[0033] (2) Put the pure aluminum block with a purity of 99.99% into the pit furnace for several times, and heat it to 750°C for melting;

[0034] (3) Afterwards, the four metal elements of Pb, Sn, Ga, and Ti prepared previously are also added to the pit furnace;

[0035] (4) After all the components are melted, use graphite rods to stir the molten aluminum alloy every 5 minutes and repeat it several times to make each metal element in a uniform state;

[0036] (5) Finally, add hexachloroethane twice to remove the waste residue in the molten aluminum. The amount of hexachloroethane added is 8% of the total mass of the aluminum alloy.

[0037] 2. Casting molding:

[0038] (1) Coat a layer of release agent on th...

Embodiment 2

[0042] In this example, the aluminum alloy suitable for aluminum-air batteries is cast from Pb, Sn, Ga, Ti and Al, and the specific casting steps are as follows:

[0043] 1. Refined alloy:

[0044] (1) Dosing according to the mass percentage of each component in Example 2 in Table 1;

[0045] (2) Put the pure aluminum block with a purity of 99.99% into the pit furnace several times, and heat it to 700°C for melting;

[0046](3) Afterwards, the four metal elements of Pb, Sn, Ga, and Ti prepared previously are also added to the pit furnace;

[0047] (4) After all the components are melted, use graphite rods to stir the molten aluminum alloy every 5 minutes and repeat it several times to make each metal element in a uniform state;

[0048] (5) Finally, add hexachloroethane twice to remove the waste residue in the molten aluminum. The amount of hexachloroethane added is 6% of the total mass of the aluminum alloy.

[0049] 2. Casting molding:

[0050] (1) Coat a layer of releas...

Embodiment 3

[0054] In this example, the aluminum alloy suitable for aluminum-air batteries is cast from Pb, Sn, Ga, Ti and Al, and the specific casting steps are as follows:

[0055] 1. Refined alloy:

[0056] (1) Dosing according to the mass percentage of each component in Example 3 in Table 1;

[0057] (2) Put the pure aluminum block with a purity of 99.99% into the pit furnace several times, and heat it to 700°C for melting;

[0058] (3) Afterwards, the four metal elements of Pb, Sn, Ga, and Ti prepared previously are also added to the pit furnace;

[0059] (4) After all the components are melted, use graphite rods to stir the molten aluminum alloy every 5 minutes and repeat it several times to make each metal element in a uniform state;

[0060] (5) Finally, add hexachloroethane twice to remove the waste residue in the molten aluminum. The amount of hexachloroethane added is 8% of the total mass of the aluminum alloy.

[0061] 2. Casting molding:

[0062] (1) Coat a layer of relea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an aluminum alloy anode material, and a casting method and an application thereof. The aluminum alloy anode material is prepared through casting Pb, Sn, Ga, Ti and Al. The casting method concretely comprises the following steps: 1, refining alloy: (1) placing pure aluminum blocks in a shaft furnace in batches, and heating for melting the pure aluminum blocks; (2) adding trace metal elements into the high temperature shaft furnace after all the aluminum blocks are completely molten; (3) stirring all above components by a graphite rod after all the components are completely molten; and (4) adding hexachloroethane, and removing the waste residues in the molten aluminum; and 2, carrying out casting molding: (1) coating the internal surface of a die with a layer of a release agent, and carrying out heating and heat insulation; and (2) pouring the molten aluminum alloy into the die, and casting the aluminum alloy to form aluminum ingots. The aluminum alloy anode material has low overpotential and high hydrogen evolution overpotential, so an electrode made of the material has high electrochemical activity and high anode utilization efficiency during the running of a battery.

Description

technical field [0001] The invention belongs to the technical field of metallurgy and material processing, and relates to a novel five-element aluminum alloy and its casting method and application. Background technique [0002] With the shortage of non-renewable energy such as petroleum and the severe environmental problems in our country, people began to develop new and green renewable energy continuously. From the first generation of lead-acid batteries to lithium batteries to the metal-air batteries that are now attracting attention, the development of battery power systems has attracted more and more attention. As a new generation of green batteries, metal-air batteries have many advantages such as low manufacturing cost, high specific energy, environmental protection and non-toxicity. [0003] At present, metal-air batteries that have been studied more include zinc-air batteries, aluminum-air batteries, lithium-air batteries, etc. Among them, only zinc-air batteries ar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/06B22D21/04H01M4/46
CPCB22D21/007C22C1/06C22C21/00H01M4/463Y02E60/10
Inventor 尹鸽平陈兴左朋建霍华高云智程新群杜春雨
Owner HARBIN INST OF TECH