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Storage battery panel grid alloy with rare earth element and production method thereof

A rare earth element, battery board technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problem of serious gas evolution and water loss in batteries, poor creep resistance and deep discharge cycle performance of lead-calcium alloys, and poor maintenance-free performance and other problems, to achieve the effect of reducing the rate of precipitation reaction, reducing structural defects, and improving comprehensive mechanical properties

Inactive Publication Date: 2018-11-06
江苏科耐尔新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lead-antimony alloy has a low hydrogen evolution overpotential, serious battery gas evolution and water loss, and poor maintenance-free performance
However, lead-calcium alloys have poor creep resistance and deep discharge cycle performance.

Method used

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  • Storage battery panel grid alloy with rare earth element and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A battery grid alloy with rare earth elements of the present invention has a total weight of 100kg, and the specific components are as follows:

[0021] Ca 5kg, La 0.1kg, Yb 0.1kg, Ce 1.8kg, Sm 0.1kg, Nd 2kg, Al 3.5kg, Ag 1.5kg, Zn 10kg, S 1kg, and the balance is Pb.

[0022] A method for producing battery grid alloys with rare earth elements, comprising the following steps:

[0023] 1) Weigh the raw materials according to the above ratio;

[0024] 2) Put the lead into a vacuum high-pressure melting furnace and heat it to 1300°C to melt it into lead night, the vacuum degree is 0.3Pa, and the heating time is 20-25min;

[0025] 3) Add metal Zn to 70% lead liquid, continue heating to 900°C, and stir evenly to obtain alloy liquid Zn-Pb;

[0026] 4) Transfer 30% of the remaining lead liquid to the lead melting furnace and continue to heat up. When the temperature rises to 1200°C, first add La, stir for 15 minutes, then add Yb, stir for another 5 minutes, add Ce, and contin...

Embodiment 2

[0030] A battery grid alloy with rare earth elements of the present invention has a total weight of 100kg, and the specific components are as follows:

[0031] Ca 15kg, La 1.5kg, Yb 0.8kg, Ce 2.7kg, Sm 1.5kg, Nd 3.5kg, Al 4.5kg, Ag 2kg, Zn 15kg, S 3.5kg, and the balance is Pb.

[0032] A method for producing battery grid alloys with rare earth elements, comprising the following steps:

[0033] 1) Weigh the raw materials according to the above ratio;

[0034] 2) Put the lead into a vacuum high-pressure melting furnace and heat it to 1325°C to melt it into lead night, the vacuum degree is 0.2Pa, and the heating time is 23min;

[0035] 3) Add metal Zn to 75% lead liquid, continue heating to 850°C, and stir evenly to obtain alloy liquid Zn-Pb;

[0036] 4) Transfer 35% of the remaining lead liquid to the lead melting furnace and continue to heat up. When the temperature rises to 1150°C, add La first, stir for 17 minutes, then add Yb, stir for 5.5 minutes, add Ce, and continue sti...

Embodiment 3

[0040] A battery grid alloy with rare earth elements of the present invention has a total weight of 100kg, and the specific components are as follows:

[0041] Ca 25kg, La 0.2kg, Yb 1.5kg, Ce 3.6kg, Sm 0.2kg, Nd 5kg, Al 5.5kg, Ag 2.5kg, Zn 20kg, S 5k and the balance is Pb.

[0042] A method for producing battery grid alloys with rare earth elements, comprising the following steps:

[0043] 1) Weigh the raw materials according to the above ratio;

[0044] 2) Put the lead into a vacuum high-pressure melting furnace and heat it to 1350 ° C to melt it into lead night. The vacuum degree is 0.1 Pa, and the heating time is 20 minutes;

[0045] 3) Add metal Zn to 80% lead liquid, continue heating to 900°C, and stir evenly to obtain alloy liquid Zn-Pb;

[0046] 4) Transfer 40% of the remaining lead liquid to the lead melting furnace and continue to heat up. When the temperature rises to 1200°C, first add La, stir for 15 minutes, then add Yb, stir for another 6 minutes, add Ce, and co...

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Abstract

The invention discloses a storage battery panel grid alloy with a rare earth element. The storage battery panel grid alloy comprises, by weight, 0.05-0.25% of Ca, 0.001-0.002% of La, 0.001-0.015% of Yb, 0.018-0.036% of Ce, 0.001-0.002% of Sm, 0.02-0.05% of Nd, 0.035-0.055% of Al, 0.015-0.025% of Ag, 0.1-0.2% of Zn, 0.01-0.05% of S, and the balance Pb. Through the storage battery panel grid alloy with the rare earth element, the properties of the lead-acid battery panel grid alloy are improved, the condition of water loss of batteries is reduced, and the maintenance-free performance of the batteries is improved; meanwhile, the corrosion resistance of the alloy is enhanced. The structure defects caused by impurities are reduced, so that the plasticity and toughness of the alloy are enhanced,and the creep resistance and corrosion resistance of the alloy are improved.

Description

technical field [0001] The invention specifically relates to a storage battery grid alloy with rare earth elements and a production method thereof, belonging to the technical field of lead storage batteries. Background technique [0002] With the development of science and technology and the continuous development of the new energy industry, the country pays more and more attention to environmental protection and the rational use of resources, and the requirements for batteries are getting higher and higher. The pursuit of high performance of batteries, the improvement of corrosion resistance of batteries, and deep cycle And charge acceptance, etc., among which the grid alloy plays a very important role in the battery. [0003] The grid is an important part of the lead-acid battery. It mainly plays the role of supporting the active material, conducting current and evenly distributing the current. Although it does not participate in the battery flow chemical reaction, it has ...

Claims

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Application Information

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IPC IPC(8): C22C11/00C22C1/02H01M4/68H01M4/73
CPCC22C1/02C22C11/00H01M4/685H01M4/73Y02E60/10
Inventor 刘恒
Owner 江苏科耐尔新能源科技有限公司