Lead paste for storage battery positive electrode and preparation method thereof

A positive lead paste, battery technology, applied in lead-acid battery electrodes, battery electrodes, secondary batteries, etc., can solve problems such as fuel economy fluctuations, and achieve improved deep cycle life, improved corrosion resistance, and uniform lead paste. Effect

Inactive Publication Date: 2017-02-15
叶晓东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to different working conditions, the fuel economy of idling start and stop fluctuates, but it can basically achieve 5%-10% fuel saving ability, which has a significant effect on reducing emissions and protecting the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A preparation method of battery positive lead paste, the preparation method is as follows:

[0028] S1: 0-0.8 parts of 4BS seed crystal, 5-12 parts of trilead tetraoxide, 2-8 parts of polyvinyl alcohol, 2-6 parts of red lead, 2-7 parts of sulfuric acid, 6-8 parts of complex rare earth, core-shell Add 15-20 parts of acrylic elastic emulsion, 0.5-1.5 parts of carboxymethyl cellulose, and 0.35-1.05 parts of chemical resistance modifier into a paste machine, mix and stir evenly to obtain an additive mixed solution;

[0029] S2: Add 70-90 parts of lead powder, 0.01-0.1 parts of non-glue carbon fiber, 0.01-0.1 part of basalt fiber, 1-5 parts of polyester staple fiber, and 3-6 parts of nano-silica into the additive mixed solution in step S1 , fully stirred and mixed, the mixing and stirring time is 5-8min, and then an appropriate amount of pure water is added, and fully stirred and mixed, and the mixing and stirring time is 2-3min to obtain a mixture.

[0030] S3: adding sulf...

Embodiment 1

[0032] A preparation method of battery positive lead paste, the preparation method is as follows:

[0033] S1: 0.4 parts of 4BS seed crystal, 5 parts of trilead tetraoxide, 2 parts of polyvinyl alcohol, 2 parts of red lead, 2 parts of sulfuric acid, 6 parts of complex rare earth, 15 parts of core-shell acrylic elastic emulsion, 0.5 parts of carboxymethyl cellulose Part, 0.35 parts of chemical-resistant modifiers are added in the paste machine and mixed and stirred to obtain the additive mixed solution;

[0034] S2: Add 70 parts of lead powder, 0.01 part of glue-free carbon fiber, 0.01 part of basalt fiber, 1 part of polyester staple fiber, and 3 parts of nano-silica into the additive mixed solution in step S1, fully stir and mix, and the mixing time is 5- 8 minutes, then add an appropriate amount of pure water, and fully stir and mix, and the mixing and stirring time is 2-3 minutes to obtain a mixture.

[0035] S3: adding sulfuric acid into the mixture in step S2 in the form ...

Embodiment 2

[0037] A preparation method of battery positive lead paste, the preparation method is as follows:

[0038]S1: 0.8 parts of 4BS seed crystal, 12 parts of trilead tetraoxide, 8 parts of polyvinyl alcohol, 6 parts of red lead, 7 parts of sulfuric acid, 8 parts of complex rare earth, 20 parts of core-shell acrylic elastic emulsion, 1.5 parts of carboxymethyl cellulose 1.05 parts of chemical-resistant modifier is added into the paste machine, mixed and stirred evenly to obtain the additive mixed solution;

[0039] S2: Add 90 parts of lead powder, 0.1 part of non-glue carbon fiber, 0.1 part of basalt fiber, 5 parts of polyester short fiber, and 6 parts of nano-silica into the additive mixed solution in step S1, fully stir and mix, and the mixing time is 5- 8 minutes, then add 13 parts of an appropriate amount of pure water, and fully stir and mix, and the mixing and stirring time is 2-3 minutes to obtain a mixture.

[0040] S3: adding sulfuric acid into the mixture in step S2 in th...

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PUM

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Abstract

The invention discloses a lead paste for a storage battery positive electrode and a preparation method thereof. The paste comprises, by weight, 70-90 parts of lead powder, 0.01-0.1 part of non-gel carbon fiber, 0.0-0.1 part of basalt fiber, 0-0.8 part of 4BS seed crystal, 5-12 parts of lead tetrachloride, 2-8 parts of polyvinyl alcohol, 1-5 parts of polyester staple fiber, 2-6 parts of red lead, 2-7 parts of sulfuric acid, 6-8 parts of composite rare earth, 3-6 parts of nano-silica, 15-20 parts of core-shell propylene elastic emulsion, 0.5-1.5 parts of carboxymethyl cellulose, 0.35-1.05 parts of chemical-resistant modifier and 9-13 parts of pure water. The paste uses the additive technology of non-gel carbon fiber which enhances the adhesiveness of the lead paste. The lead paste also applies the technology of low acidic content in the lead paste to greatly prolong the battery deep cycle life. The adding of core-shell propylene elastic emulsion and nano-silica improves the weather resistance of the lead paste. The acrylic additives with perfluoroalkyl group is introduced as the modifier, so the anti-corrosion ability of the lead paste is greatly enhanced.

Description

technical field [0001] The invention relates to the field of accumulators, in particular to an anode lead paste of an accumulator and a preparation method thereof. Background technique [0002] With the attention of various countries on climate change and the gradual improvement of people's awareness of environmental protection, the voice of reducing vehicle exhaust emissions is also getting higher and higher. Pollutants emitted by motor vehicles mainly include hydrocarbons (HC), nitrogen oxides (NOx), carbon monoxide (CO), particulates (PM) and other harmful substances, which will have a direct impact on global climate change, environmental pollution, and human health. Reducing vehicle exhaust emissions has basically become the common understanding of the world's major economies. [0003] The micro-hybrid idling start-stop car has obvious practical significance in terms of saving fuel, reducing greenhouse gas, and toxic and harmful gas emissions. According to different wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/14H01M4/16H01M4/62H01M10/42
CPCH01M4/14H01M4/16H01M4/62H01M4/625H01M10/4235Y02E60/10
Inventor 叶晓东
Owner 叶晓东
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