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A method for rapid determination of corrosion resistance of lead-acid battery grid

A lead-acid battery, rapid measurement technology, used in weather resistance/light resistance/corrosion resistance, measuring device, weighing by removing certain components, etc., can solve the problems of long time, complicated operation, etc. Simple and convenient for real-time measurement

Active Publication Date: 2016-08-10
艾诺斯(重庆)华达电源系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method takes a very long time, the operation is complicated, and the circuit must be connected to test

Method used

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  • A method for rapid determination of corrosion resistance of lead-acid battery grid
  • A method for rapid determination of corrosion resistance of lead-acid battery grid
  • A method for rapid determination of corrosion resistance of lead-acid battery grid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 1. Acid etching test: Cut about 3cm sample from the side frame of the 85A positive grid (for grain test), measure the thickness of the grid lug (point A), the thickness of the main rib (point B), and the frame of zone 1 Thickness (point C), the thickness of the border of zone 2 (point D), and then put it into the acid etching tank filled with 1500mL glacial acetic acid and 500mL 30% hydrogen peroxide, start timing, take out the grid in about 3 minutes, wash it with water, and measure B Point thickness, if the thickness of point B is reduced to 12±1%, measure the data of other 3 points, if the thickness reduction of point B does not meet the requirements, continue acid etching until the thickness of point B is reduced to 12±1%, then measure points A and C , The thickness of point D, and calculate the metal remaining rate before and after acid etching. The remaining rate of point A is 96%, the remaining rate of point C is 92%, and the remaining rate of point D is 90%, and...

Embodiment 2

[0061] 1. Acid etching test: Cut about 3cm sample from the side frame of the 72A positive grid (for grain test), measure the thickness of the grid lug (point A), the thickness of the main rib (point B), and the frame of zone 1 Thickness (point C), the thickness of the border of zone 2 (point D), then put it into the acid etching tank filled with 1000mL glacial acetic acid and 500mL 30% hydrogen peroxide, start timing, take out the grid in about 2 minutes, wash it with water, and measure B Point thickness, if the thickness of point B is reduced by 12±1%, measure the data of other 3 points, if the thickness of point B does not meet the requirements, continue acid etching until the thickness of point B is reduced by 12±1%, then measure point A, point C, point D Point thickness, and calculate the metal remaining rate before and after acid etching. The remaining rate of point A is 92%, the remaining rate of point C is 89%, and the remaining rate of point D is 85%, and there is no b...

Embodiment 3

[0068] 1. Acid etching test: cut a 3cm sample from the side frame of the 100A positive grid (for grain test), measure the thickness of the grid lug (point A), the thickness of the main rib (point B), and the thickness of the frame of zone 1 (point C), the thickness of the frame in zone 2 (point D), and then put it into an acid etching tank filled with 1600mL glacial acetic acid and 400mL 30% hydrogen peroxide, start timing, take out the grid in about 4 minutes, wash it with water, and measure point B Thickness, if the thickness of point B is reduced by 12±1%, measure the data of other 3 points, if the thickness of point B is not reduced to meet the requirements, continue acid etching until the thickness of point B is reduced by 12±1%, then measure points A, C and D thickness, and calculate the metal remaining rate before and after acid etching. The remaining rate of point A is 90%, the remaining rate of point C is 87%, and the remaining rate of point D is 83%, and there is no ...

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Abstract

The present invention proposes a method for quickly measuring the corrosion resistance of lead-acid storage battery grids. The method includes three steps: acid etching test, grain test and comprehensive judgment. The results of the two together evaluate the corrosion resistance of the grid, and the corrosion resistance of the grid can be quickly inspected from the material composition, chemical properties and microstructure of the grid. This method is simple and fast, which is conducive to real-time determination and improves detection efficiency.

Description

technical field [0001] The invention belongs to the technical field of accumulators, and relates to the corrosion resistance test of lead-acid accumulator grids. Background technique [0002] Since 1859, lead-acid battery has a history of more than 100 years. It has the advantages of low price, high specific power, safe use, and excellent cost performance, so it is widely used in telecommunications, electric power, railways, UPS and other fields. As the core of the entire lead-acid battery, the grid has the following main functions: 1. As a carrier of battery active materials, it acts as a skeleton and support; 2. It plays the role of collecting, converging and conducting current; 3. Makes the current evenly distributed to the role of active substances. [0003] The corrosion resistance of the grid is determined by the composition, chemical properties and structure of the material. At present, the acid etching test is used to evaluate the corrosion resistance of the grid. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04G01N17/00
Inventor 张文贵魏文静张宾许卫疆程亮陶许涛许锴张慧
Owner 艾诺斯(重庆)华达电源系统有限公司
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