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Method for testing corrosion resistance of lead acid battery plate grid

A technology of lead-acid battery and test method, which is applied in the direction of weather resistance/light resistance/corrosion resistance, measuring device, weighing by removing certain components, etc., can solve the problem of no grid corrosion resistance test, etc., to avoid measurement errors , the effect of improving accuracy

Inactive Publication Date: 2014-12-17
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to reduce the risk of return due to blind production due to unclear grasp of the performance of the grid material in the production process, but there is no problem with the corrosion resistance test of the grid at present, and to provide a corrosion-resistant lead-acid battery grid Performance testing methods to address the many deficiencies of current methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for testing the corrosion resistance of a lead-acid storage battery grid, specifically comprising the following steps:

[0029] a. Sample preparation, take the grid to be tested, clean its surface, and accurately measure its length L and width W, and record the weight G of the grid to be tested 1 The grid to be measured with surface greasy dirt adopts the NaOH solution that mass concentration is 10% to clean the greasy dirt on surface, then with the mass concentration that is 10% H 2 SO 4 Clean the oxide film on the surface of the grid with the solution, then wash with deionized water to remove the acid and alkali residues on the surface of the grid, then wipe the surface of the grid with absorbent cotton dipped in acetone, put it in a drying box, and dry it at a temperature of 105°C In the environment, dry for more than 3 hours, cool to the ambient temperature of 25°C, weigh every hour, and record the grid weight G when the weight is stable to a constant weig...

Embodiment 2

[0038] A method for testing the corrosion resistance of a lead-acid storage battery grid, specifically comprising the following steps:

[0039] a. Sample preparation, take the grid to be tested, clean its surface, and accurately measure its length L and width W, and record the weight G of the grid to be tested 1The grid to be measured with surface greasy dirt adopts the NaOH solution that mass concentration is 10% to clean the greasy dirt on surface, then with the mass concentration that is 10% H 2 SO 4 Clean the oxide film on the surface of the grid with the solution, then wash with deionized water to remove the acid and alkali residues on the surface of the grid, then wipe the surface of the grid with absorbent cotton dipped in acetone, put it in a drying box, and dry it at a temperature of 105°C In the environment, dry for more than 3 hours, cool to the ambient temperature of 25°C, weigh every hour, and record the grid weight G when the weight is stable to a constant weigh...

Embodiment 3

[0050] A method for testing the corrosion resistance of a lead-acid storage battery grid, specifically comprising the following steps:

[0051] a. Sample preparation, take the grid to be tested, clean its surface, and accurately measure its length L and width W, and record the weight G of the grid to be tested 1 The grid to be measured with surface greasy dirt adopts the NaOH solution that mass concentration is 10% to clean the greasy dirt on surface, then with the mass concentration that is 10% H 2 SO 4 Clean the oxide film on the surface of the grid with the solution, then wash with deionized water to remove the acid and alkali residues on the surface of the grid, then wipe the surface of the grid with absorbent cotton dipped in acetone, put it in a drying box, and dry it at a temperature of 105°C In the environment, dry for more than 3 hours, cool to the ambient temperature of 25°C, weigh every hour, and record the grid weight G when the weight is stable to a constant weig...

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PUM

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Abstract

The invention belongs to the field of battery manufacture and relates to a method for testing corrosion resistance of a lead acid battery plate grid. The method comprises the following steps of putting a dilute sulphuric acid solution into a container, respectively putting a battery plate grid to be tested as a positive pole and a battery plate grid as a negative pole into the container, carrying out constant current charging, immersing the charged battery plate grid to be tested in a treatment solution so that surface oxides of the corroded battery plate grid to be tested are dissolved, taking out the battery plate grid to be tested, carrying out drying, calculating weight reduction amount of the battery plate grid to be tested, and carrying out determination on the corrosion degree of the battery plate grid according to the weight reduction amount of the battery plate grid.

Description

technical field [0001] The invention relates to the field of lead battery manufacturing, in particular to a method for testing the corrosion resistance of lead-acid battery grids. Background technique [0002] Lead-acid water battery is also called lead-acid battery. Its electrodes are composed of lead and lead oxides, and the electrolyte is an aqueous solution of sulfuric acid. The main advantages are stable voltage and low price; the disadvantages are low specific energy (that is, the electric energy stored per kilogram of battery), short service life and frequent daily maintenance. Old-fashioned ordinary batteries generally have a lifespan of about 2 years, and the height of the electrolyte needs to be checked regularly and distilled water added. However, with the development of technology, the life of ordinary batteries has become longer and easier to maintain. [0003] The grid is an important part of the lead-acid battery. It is the carrier and conductor of the activ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04G01N17/00
Inventor 杨绍坡赵文超张森
Owner CHAOWEI POWER CO LTD
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