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A kind of flux of lead-acid storage battery pole plate and preparation method thereof

A lead-acid battery and flux technology, applied in welding equipment, welding media, manufacturing tools, etc., can solve the problems of health hazards for operators, short effective storage period, poor compatibility of tabs, etc., to avoid physical hazards, anti-corrosion Good freezing and good compatibility

Active Publication Date: 2017-11-21
湖北长海新能源科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of water-based flux has good flame retardancy, but poor compatibility with tabs, and it is easy to cause virtual soldering, false soldering, etc.
In addition, sulfuric acid as an activator is too corrosive and easy to remain on the tab, resulting in the formation of an oxide layer on the surface of the tab
The effective storage period of phosphorous acid and metaphosphoric acid is short. Phosphorous acid is heated during use to produce highly toxic phosphine, and metaphosphoric acid itself is a highly toxic chemical. The use of this type of flux is harmful to the working environment and operators. serious harm to the health of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: It is the basic embodiment of the lead-acid storage battery plate flux of the present invention. A lead-acid storage battery electrode plate soldering flux, its components and mass percentages are: organic acid activator 12%~25%, surfactant 0.2%~0.5%, mixed organic solvent 40%~60%, deionized water 15%~45%.

[0023] The preparation method of the lead-acid storage battery electrode plate soldering flux comprises the following steps: firstly, under normal temperature conditions, the mixed organic solvent, deionized water, and organic acid activator are added to the stirring tank in proportion, and then mixed at 80 to 120rpm Stir at a constant speed for 30-60 minutes, then add surfactant, continue stirring for 15-20 minutes, and finally fill.

Embodiment 2

[0024] Embodiment 2: is a further embodiment. Described lead-acid storage battery electrode plate welding flux, its organic acid activator is selected from benzenesulfonic acid, p-toluenesulfonic acid, p-hydroxybenzenesulfonic acid, is one of the three, or two kinds thereof, or 3 types of combinations. The surfactant is: TX-10, or / and TX-10 phosphate. The mixed organic solvent is formed by mixing a high-boiling point solvent and a low-boiling point solvent, wherein the high-boiling point solvent is selected from N-methylpyrrolidone, ethylene glycol monobutyl ether, and dimethylformamide, which is one of the three , or 2 of them, or a combination of 3; the low boiling point solvent is methanol, or / and isopropanol. The mass ratio of the high boiling point solvent to the low boiling point solvent in the mixed organic solvent is 1˜1.5:1.

Embodiment 3

[0025] Embodiment 3: is a further embodiment. Described lead-acid storage battery polar plate soldering flux, its each component and mass percent are: organic acid activator 20%, surfactant 0.2%, mixed organic solvent 50%, deionized water 29.8%; Its mixed organic solvent medium high The mass ratio of boiling point solvent to low boiling point solvent is 1:1.

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Abstract

The invention relates to lead-acid storage battery polar plate scaling powder and a preparation method thereof. The lead-acid storage battery polar plate scaling powder comprises the following components in weight percent (wt%): 12-25% of an organic acid activating agent, 0.2-0.5% of a surfactant, 40-60% of a mixed organic solvent, and 15-45% of deionized water. The preparation method of the lead-acid storage battery polar plate scaling powder comprises the following steps: firstly, under normal temperature, sequentially adding the mixed organic solvent, deionized water and organic acid activating agent in an agitated vessel according to the proportion, then, uniformly stirring for 30-60 min at the speed of 80-120 rpm, adding the surfactant, continuously stirring for 15-20 min, and finally filling. The lead-acid storage battery polar plate scaling powder and the preparation method are simple, do not contain or generate extremely toxic substances; the lead-acid storage battery polar plate scaling powder is applicable to various polar plate alloy, has excellent compatibility with alloy, is better in freezing resistance, and facilitates increase of yield of polar plate welding.

Description

technical field [0001] The invention belongs to the technical field of accumulators, and relates to a flux and a preparation method thereof, in particular to a lead-acid accumulator polar plate flux and a preparation method thereof. Background technique [0002] Lead-acid battery is mainly composed of positive plate, negative plate, electrolyte, separator, battery tank, battery cover, pole, liquid injection cover, etc. It has the advantages of low price, long service life, high working stability and good reliability. . Since the practical use of lead-acid batteries, they have been widely used as power sources in many industries such as electric power, transportation, communications, power stations, and emergency power supplies. In recent decades, with the rapid development of power supply technology, new batteries have been continuously developed and brought to the market, but lead-acid batteries still occupy a pivotal position in the field of power supplies. [0003] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/36B23K35/40
CPCB23K35/3612B23K35/40
Inventor 吴飞孙震王振李文斌丁刚强
Owner 湖北长海新能源科技有限公司
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