A kind of high-performance flux for lead-acid battery and preparation method thereof

A lead-acid battery and flux technology, applied in welding equipment, manufacturing tools, welding media, etc., can solve problems such as unsatisfactory wetting effect, poor solder joint firmness, unsatisfactory solder joint conductivity, etc., and achieve excellent phase Capacitance, excellent temperature resistance, and the effect of improving the soldering effect

Active Publication Date: 2020-08-11
TIANNENG GRP HENAN ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of unsatisfactory solder joint conductivity, poor solder joint firmness and unsatisfactory wetting effect in the prior art, and propose a high-performance flux for lead-acid batteries and its preparation method

Method used

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  • A kind of high-performance flux for lead-acid battery and preparation method thereof
  • A kind of high-performance flux for lead-acid battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-performance soldering flux for lead-acid batteries proposed by the present invention comprises the following raw materials in parts by weight: 3 parts of chlorogenic acid, 4 parts of 1-dodecyl-3-methylimidazole nitrate, tetrakis(hexadecane Thio) tetrathiafulvalene 0.2 parts, silane coupling agent 2 parts, epoxy modified acrylic resin 8 parts, surfactant 2 parts, (2,4,6-trimethylbenzoyl) diphenyl 0.25 parts of phosphine oxide, 13 parts of 2-phenylethylamine, 26 parts of ethanol, and 52 parts of water; the epoxy-modified acrylic resin is a resin obtained by modifying the acrylic resin with water-based epoxy resin as the main body;

[0022] Its preparation method comprises the following steps:

[0023] S1. Weigh the raw materials of the high-performance soldering flux for lead-acid batteries and set aside;

[0024] S2. Add the weighed tetrakis(hexadecylthio)tetrathiafulvalene into the silane coupling agent, and disperse evenly to obtain the mixture A, which is set ...

Embodiment 2

[0028] A high-performance soldering flux for lead-acid batteries proposed by the present invention comprises the following raw materials in parts by weight: 2 parts of chlorogenic acid, 2 parts of 1-dodecyl-3-methylimidazole nitrate, 2 parts of tetrakis(hexadecane) Thio) tetrathiafulvalene 0.1 part, silane coupling agent 1 part, epoxy modified acrylic resin 5 parts, surfactant 1 part, (2,4,6-trimethylbenzoyl) diphenyl 0.2 parts of phosphine oxide, 3 parts of 2-phenylethylamine, 20 parts of ethanol, and 40 parts of water; the epoxy-modified acrylic resin is a resin obtained by modifying the acrylic resin with water-based epoxy resin as the main body;

[0029] Its preparation method is with embodiment 1.

Embodiment 3

[0031] A high-performance soldering flux for lead-acid batteries proposed by the present invention comprises the following raw materials in parts by weight: 4 parts of chlorogenic acid, 6 parts of 1-dodecyl-3-methylimidazole nitrate, tetrakis(hexadecane Thio) tetrathiafulvalene 0.3 parts, silane coupling agent 3 parts, epoxy modified acrylic resin 10 parts, surfactant 3 parts, (2,4,6-trimethylbenzoyl) diphenyl 0.3 parts of phosphine oxide, 6 parts of 2-phenylethylamine, 30 parts of ethanol, and 60 parts of water; the epoxy-modified acrylic resin is a resin obtained by modifying the acrylic resin with water-based epoxy resin as the main body;

[0032] Its preparation method is with embodiment 1.

[0033] The fluxes prepared in Examples 1-3 and the fluxes prepared in accordance with Chinese patent authorization announcement number: CN104139252B (inorganic flux) and Chinese patent authorization announcement number: CN105171272B (organic flux) were tested for performance, and used...

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Abstract

The invention provides high-performance scaling powder for a lead-acid storage battery and a preparing method of the high-performance scaling powder. The high-performance scaling powder for the lead-acid storage battery comprises following raw materials including chlorogenic acid, 1-dodecyl-3-methylimidazole nitrate, quadri (cetane sulfenyl) tetrathiafulvalene, a silane coupling agent, epoxy modified acrylic resin, a surface active agent, 2-phenylethylamine, ethanol and water. The preparing method of the high-performance scaling powder for the lead-acid storage battery comprises the followingsteps that firstly, the raw materials are weighed; secondly, the quadri (cetane sulfenyl) tetrathiafulvalene is scattered in the silane coupling agent, and a mixture A is obtained; thirdly, other rawmaterials except 2,4,6(trimethylbenzoyl) diphenylphosphine oxide are mixed with the mixture A; and fourthly, before usage, the 2,4,6(trimethylbenzoyl) diphenylphosphine oxide is mixed, and then the high-performance scaling powder is obtained. The provided scaling powder is good in weld aid effect, and welded base metal is free of corrosion; and after usage, the welding spot electric conductivity is high, and firmness is good.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a high-performance flux for lead-acid batteries and a preparation method thereof. Background technique [0002] Lead-acid batteries are widely used in transportation, communication, electric power and other fields due to their good reversibility, stable voltage characteristics, long service life, wide application range, abundant raw materials and low cost. In order to ensure the smooth progress of the lead-acid battery welding process, solder resist is usually used to assist the welding operation. It is required that the flux can remove the oxide film on the surface of the base material to be welded, and can also reduce the surface tension of the molten solder and improve the solder and the firmness of the base metal being welded. However, the overall performance of the currently used soldering flux is not ideal, and the shortcomings are mainly as follows: 1) the ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/36B23K35/362
CPCB23K35/3612B23K35/362
Inventor 李亚非李乃军常传杰秦应林
Owner TIANNENG GRP HENAN ENERGY TECH
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