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A kind of high-activity aluminum alloy anode material containing sc for new energy battery power and preparation method thereof

An anode material and new energy technology, which is applied in the field of high-activity aluminum alloy anode material and its preparation, can solve the problems of unsatisfactory aluminum anode activity, high self-corrosion rate, low self-corrosion rate, etc., so as to reduce hydrogen evolution and self-corrosion. speed, improve use efficiency, and achieve a reasonable balance of effects

Active Publication Date: 2022-07-26
重庆国创轻合金研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main elements added are Ga, In, Bi, Zn, Sn, Mg, Pb, Hg and mixed rare earth RE, etc., to prepare ternary or multi-element aluminum alloy anodes. The current problem is that, for example, the activity of aluminum anodes is better, The self-corrosion rate is relatively large; or the self-corrosion rate is low, but the activity of the aluminum anode is not satisfactory

Method used

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  • A kind of high-activity aluminum alloy anode material containing sc for new energy battery power and preparation method thereof
  • A kind of high-activity aluminum alloy anode material containing sc for new energy battery power and preparation method thereof
  • A kind of high-activity aluminum alloy anode material containing sc for new energy battery power and preparation method thereof

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preparation example Construction

[0043] The present invention provides a method for preparing a high-activity aluminum alloy anode material containing Sc for new energy battery power as described in the above technical solution, comprising:

[0044] Batching, smelting and casting, homogenizing heat treatment, milling, hot rolling, cold rolling, annealing and stretch straightening are performed in sequence.

[0045] The process flow diagram of the preparation method of the high-activity aluminum alloy anode material containing Sc for the power of the new energy battery provided by the embodiment of the present invention is as follows: figure 1 shown.

[0046] The present invention does not have special restrictions on the method of the batching, and the alloy raw materials well-known to those skilled in the art are used for proportioning according to the composition of the high-activity aluminum alloy anode material containing Sc for new energy battery power as described in the above technical scheme. , the c...

Embodiment 1

[0071] The Al with a purity of 99.995% is melted in the furnace, and the charge is flattened and covered with flux powder; when the melt temperature is 720 ℃ ~ 740 ℃, slag is removed, and alloying elements are added; the weighed Ga, In, Sn and Pb The pure metal is dispersed and evenly put into the aluminum melt in the furnace; the weighed pure Mg ingot is pressed into the aluminum melt to melt; the weighed Al-2%Sc master alloy is added to the aluminum melt to melt, Then stir thoroughly; after stirring, take the sample of the furnace to analyze the alloy composition.

[0072] After the components in front of the furnace are qualified, when the melt temperature is 730 ℃ ~ 740 ℃, use a "T" type refining tube and high-purity argon gas for refining in the furnace for 8 minutes, then slag slag, and cast after standing for 15 minutes.

[0073] The size of the ingot is 400×1320mm, the casting process parameters are: the casting temperature is 720~740℃, the casting speed is 45mm / min, a...

Embodiment 2

[0080] The Al with a purity of 99.995% is melted in the furnace, and the charge is flattened and covered with flux powder; when the melt temperature is 720 ℃ ~ 740 ℃, slag is removed, and alloying elements are added; the weighed Ga, In, Sn and Pb The pure metal is dispersed and evenly put into the aluminum melt in the furnace; the weighed pure Mg ingot is pressed into the aluminum melt to melt; the weighed Al-2%Sc master alloy is added to the aluminum melt to melt; Then stir thoroughly. After stirring, take the sample before the furnace to analyze the alloy composition.

[0081] After the components in front of the furnace are qualified, when the melt temperature is 730 ℃ ~ 740 ℃, use a "T" type refining tube and high-purity argon gas for refining in the furnace for 8 minutes, then slag slag, and cast after standing for 15 minutes.

[0082] The size of the ingot is 400×1320mm, the casting process parameters are: the casting temperature is 720~740℃, the casting speed is 47mm / m...

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Abstract

The invention provides a method for preparing a high-activity aluminum alloy anode material containing Sc for new energy battery power. Straighten. The anode material prepared by the method provided by the invention maintains high electrochemical activity and reduces the self-corrosion rate of hydrogen evolution of the material, so that the electrochemical activity and self-corrosion of the aluminum anode are reasonably balanced, and the use efficiency of the aluminum anode is improved. The invention also provides a high-activity aluminum alloy anode material containing Sc for power of a new energy battery.

Description

technical field [0001] The invention belongs to the technical field of anode materials, and in particular relates to a high-activity aluminum alloy anode material containing Sc for new energy battery power and a preparation method thereof. Background technique [0002] Metal aluminum has the advantages of relatively negative electrode potential, high theoretical energy density, small electrochemical equivalent, abundant resources, and low price. It is likely to become an excellent active material for electrodynamic chemical batteries. However, as an electrode active material, it must have two performance requirements: 1. It has excellent electrochemical performance; 2. It has excellent corrosion resistance. However, this is contradictory and mutually restrictive for metal aluminum. Therefore, developing the huge potential of aluminum metal has always been the focus and difficulty of research. [0003] The high-performance requirements of new high-activity aluminum alloy an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22F1/047B23P15/00C22C1/02
CPCC22C21/08C22C1/026C22F1/047B23P15/00
Inventor 林顺岩温庆红牟春田士王彬孙黎明曹以恒
Owner 重庆国创轻合金研究院有限公司
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