A kind of water-based soldering flux for lead-acid battery

A lead-acid battery, water-based technology, applied in welding equipment, welding medium, welding/cutting medium/material, etc., can solve the problem of serious corrosion of the base material and solder to be welded, increased welding processing costs, and poor flux removal ability etc. to reduce surface tension, protect against corrosion, and improve firmness

Active Publication Date: 2020-06-16
TIANNENG GRP HENAN ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the prior art that the solder flux has poor film removal ability, serious corrosion to the base metal to be welded and solder, and increased welding processing costs, and proposes a water-based flux for lead-acid batteries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～17

[0020] Examples 1-17, according to 0.1 part of corrosion inhibitor, 1 part of anionic surfactant, 6 parts of acetone, 6 parts of isopropanol, and 55 parts of water are sampled, and then according to the corresponding parts by weight in Table 1, ionic liquid and carbon black and graphene sampling, and carry out the preparation of water-based flux for lead-acid accumulator according to the preparation method of water-based flux proposed by the present invention respectively, concrete operations are as follows: S1, take each raw material according to weight; S2, acetone, isopropyl Mix alcohol and water, mix evenly to obtain a mixed solvent, add anionic surfactant to the mixed solvent, ultrasonically, until it is completely dissolved, add ionic liquid, stir, mix evenly, transfer to an ultrasonic instrument, add corrosion inhibitor, Carbon black and graphene, after the corrosion inhibitor, carbon black and graphene are uniformly dispersed, the ionic liquid is protonated betaine func...

Embodiment 18

[0026] The anionic surfactant in Example 12 was replaced with a mixture of polyacrylamide and sodium lauryl sulfate with a mass ratio of 1:2, and other conditions were the same as in Example 12 to prepare a water-based active agent.

Embodiment 19

[0034] The same amount of deionized water in Example 12 was replaced by ultrapure water, and other conditions were the same as in Example 12 to prepare a water-based active agent.

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PUM

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Abstract

The invention provides a water-based flux for lead-acid batteries, which relates to the technical field of lead-acid batteries. The water-based flux for lead-acid batteries includes the following raw materials in parts by weight: 0.05-0.15 parts of ionic liquid, 1-3 parts of carbon black, 0.5-1.5 parts of graphene, 0.05-0.15 parts of corrosion inhibitor, 0.5-1.5 parts of anionic surfactant, 5-8 parts of acetone, 5-8 parts of isopropanol, and 40-72 parts of water. The soldering flux proposed by the present invention has strong film-removing ability, low corrosiveness, and is easy to disperse on the base material to be welded and the surface of the solder, and the firmness between the solder and the base material to be welded is strong, and the electrical conductivity of the solder joint is good, and the welded flux is The service life of the parent material is long, and the invention also provides a method for preparing water-based flux with simple operation, reasonable method and uniform dispersion of raw materials.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a water-based flux for lead-acid batteries. Background technique [0002] After more than a hundred years of development and improvement, lead-acid batteries have become a chemical power source widely used in the world. They have the advantages of good reversibility, stable voltage characteristics, long service life, wide application range, abundant raw materials and low cost. It is mainly used in various fields of national economy such as transportation, communication, electric power, railway, mine, port, national defense, computer, scientific research, etc. It is an indispensable product in social production and operation activities and human life. [0003] Flux is one of the auxiliary materials needed in the production process of lead-acid batteries. It can dissolve the oxide film on the surface of the base material to be welded, prevent re-oxidation on the surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/362
CPCB23K35/0255B23K35/3612B23K35/362
Inventor 欧阳万忠李乃军庞明朵周强华程可红
Owner TIANNENG GRP HENAN ENERGY TECH
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