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Grid alloy and manufacturing method and applications thereof

A manufacturing method and alloy technology, which are applied in lead-acid battery electrodes, electrode carriers/current collectors, lead-acid batteries, etc., can solve the problems of grid fracture and extension, poor permeability, poor bonding ability of positive active materials, etc. Achieve the effect of high hydrogen evolution overpotential and good corrosion resistance

Inactive Publication Date: 2010-03-03
SOUTH CHINA NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the grid alloy provided by the scheme of the prior art generally adopts the lead-calcium alloy grid, and the calcium in the lead-calcium alloy is easily burned and oxidized, and when it is used as the positive electrode grid material of the concentration cycle battery, the permeability is very low. Poor and dense corrosion film causes increased resistance, difficult charging, poor bonding ability with positive active material, corrosion resistance needs to be improved, grid will grow due to fracture and elongation, resulting in early attenuation of battery capacity

Method used

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  • Grid alloy and manufacturing method and applications thereof
  • Grid alloy and manufacturing method and applications thereof
  • Grid alloy and manufacturing method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 provides a grid alloy, which may include: lead Pb, calcium Ca, tin Sn, aluminum Al and titanium Ti, and its mass percentage content is as follows:

[0028] Calcium Ca: 0.06~0.09%;

[0029] Tin Sn: 0.05~0.9%;

[0030] Aluminum Al: 0.005~0.053%;

[0031] Titanium Ti: 0.00225~0.068%;

[0032] Lead Pb: balance;

[0033] The purity of the titanium Ti, tin Sn, aluminum Al and lead Pb are all 99.9% or above.

[0034] Of course, in actual situations, the specific content of the grid alloy can also be shown in Table 1:

[0035] Table 1:

[0036]

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Calcium Ca

(%)

0.06

0.07

0.075

0.08

0.085

0.09

Tin Sn

(%)

0.9

0.7

0.5

0.3

0.1

0.05

Aluminum Al

(%)

0.005

0.0082

0.03 ...

Embodiment 2

[0040] A grid alloy provided in Example 2, the grid alloy may include: lead Pb, calcium Ca, tin Sn, aluminum Al and titanium Ti, and its mass percentage content is as follows:

[0041] Calcium Ca: 0.06~0.09%;

[0042] Tin Sn: 0.05~0.9%;

[0043] Aluminum Al: 0.005~0.053%;

[0044] Titanium Ti: 0.00225~0.068%;

[0045] Copper Cu: 0.0045~0.176%;

[0046] Lead Pb: balance;

[0047] Among them, the purity of titanium Ti, tin Sn, aluminum Al, lead Pb and copper Cu are all 99.9% or above.

[0048] Of course, in actual situations, the specific content of the grid alloy can be shown in Table 2:

[0049] Table 2:

[0050]

Example

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25

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Calcium Ca

(%)

0.06

0.07

0.075

0.08

0.085

0.09

Tin Sn

(%)

0.9

0.7

0.5

0.3 ...

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Abstract

The invention provides a grid alloy and a manufacturing method and applications thereof, the alloy comprises lead (Pb), calcium (Ca), tin (Sn), aluminum (Al), titanium (Ti) and copper (Cu), and the contents thereof by weight percent are as follows: Ca: 0.06-0.09%, Sn: 0.05-0.9%, Al: 0.005-0.053%, Ti: 0.00225-0.068%, Cu: 0.0045-0.176%, Pb: the balance, the purity of the Ti is 99.9%, and the sum ofthe weight percent of all the parts is 100%. The invention provides the titanium-containing grid alloy and the manufacturing method and the applications thereof, and the grid alloy has the advantagesof good corrosion resistance and very high hydrogen overpotential.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a grid alloy and its manufacturing method and application. Background technique [0002] At present, the total output value of lead-acid batteries is half of the total output value of all chemical power sources. Because of its high-current discharge performance, lead-acid batteries are widely used in electric vehicles, hybrid vehicles, wind power, solar cells, and communication infrastructure. The grid alloy material is the key to determine the performance of the battery. In lead-acid batteries, its high-current discharge performance, float charge life, self-discharge, recovery rate and economy all have advantages. The grid alloys in the prior art generally use lead-calcium alloy grids. [0003] In the process of realizing the present invention, the inventor finds that the prior art has the following problems: [0004] Because the grid alloy provided by the scheme of the prior ...

Claims

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Application Information

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IPC IPC(8): H01M4/68C22C11/00C22C11/02C22C11/06C22C11/04C22C1/03H01M10/06H01M4/16
CPCY02E60/12Y02E60/126Y02E60/10
Inventor 陈红雨唐莉萍李爱菊唐明成何立新
Owner SOUTH CHINA NORMAL UNIVERSITY
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