Positive lead paste of storage battery and preparation method thereof

A battery and lead paste technology, which is applied to battery electrodes, circuits, electrical components, etc., can solve the problems of poor performance of battery high-current discharge and low-current deep discharge, low comprehensive performance of battery, and insufficient material analysis, so as to reduce the extreme The effect of board scrap rate, increase of deep discharge time, and extension of deep discharge time

Active Publication Date: 2014-03-26
HENAN CHAOWEI POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the raw material composition of lead-acid battery lead paste, various materials have multiple structures. Many manufacturers only pay attention to one of the structures or do not mix well the different structures of the materials. The material analysis is not delicate enough, resulting in t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The battery positive lead paste of this embodiment contains the following raw materials in parts by weight: 500 parts of high oxidation degree lead powder, 500 parts of low oxidation degree lead powder, 25 parts of red lead, 25 parts of yellow lead, 10 parts of tetrabasic lead sulfate, meteorological two 2 parts of silicon oxide, 2 parts of nano-silica, 0.5 part of 1-2mm polyester staple fiber, 0.5 part of 3-5mm polyester staple fiber, 1.5g / cm 3 50 parts of sulfuric acid solution, 1.2g / cm 3 50 parts of sulfuric acid solution.

[0032] The oxidation degree of the high oxidation degree lead powder is 80-85%, and the apparent density is 1.25g / cm 3 ; The oxidation degree of the low oxidation degree lead powder is 65-70%, and the apparent density is 1.5g / cm 3 ; The specific surface area of ​​the meteorological silica is 150~250m 2 / g, the specific surface area of ​​the nano-silica is 600-800m 2 / g; the apparent density of the resulting lead paste is 4.4g / cm 3

Embodiment 2

[0034] The battery positive lead paste of this embodiment contains the following raw materials in parts by weight: 490 parts of high oxidation degree lead powder, 490 parts of low oxidation degree lead powder, 22 parts of red lead, 22 parts of yellow lead, 8 parts of tetrabasic lead sulfate, meteorological two 1 part of silicon oxide, 1 part of nano-silica, 0.3 part of 1-2mm polyester staple fiber, 0.3 part of 3-5mm polyester staple fiber, 1.4g / cm 3 45 parts of sulfuric acid solution, 1.1g / cm 3 45 parts of sulfuric acid solution.

[0035] The oxidation degree of the high oxidation degree lead powder is 80-85%, and the apparent density is 1.25g / cm 3 ; The oxidation degree of the low oxidation degree lead powder is 65~70%, and the apparent density is 1.45g / cm 3 ; The specific surface area of ​​the meteorological silica is 150~250m 2 / g, the specific surface area of ​​the nano-silica is 600-800m 2 / g; the apparent density of the resulting lead paste is 4.5g / cm 3 .

Embodiment 3

[0037] The battery positive lead paste of this embodiment contains the following raw materials in parts by weight: 510 parts of high oxidation degree lead powder, 510 parts of low oxidation degree lead powder, 28 parts of red lead, 28 parts of yellow lead, 12 parts of tetrabasic lead sulfate, meteorological two 3 parts of silicon oxide, 3 parts of nano-silica, 0.7 parts of 1-2mm polyester staple fiber, 0.7 part of 3-5mm polyester staple fiber, 1.6g / cm 3 55 parts of sulfuric acid solution, 1.3g / cm 3 55 parts of sulfuric acid solution.

[0038] The oxidation degree of the high oxidation degree lead powder is 80-85%, and the apparent density is 1.3g / cm 3 ; The oxidation degree of the low oxidation degree lead powder is 65-70%, and the apparent density is 1.5g / cm3 ; The specific surface area of ​​the meteorological silica is 150~250m 2 / g, the specific surface area of ​​the nano-silica is 600-800m 2 / g; the apparent density of the resulting lead paste is 4.3g / cm 3 .

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Abstract

The invention belongs to the technical field of storage batteries, and particularly relates to positive lead paste of a storage battery and a preparation method thereof. The positive lead paste comprises following raw materials: 490-510 parts of high-oxidizability lead powder, 490-510 parts of low-oxidizability lead powder, 22-28 parts of red lead, 22-28 parts of yellow lead, 8-12 parts of tetrabasic lead sulfate, 1-3 parts of fumed silica, 1-3 parts of nano-silica, 0.3-0.7 part of terylene staple fiber having a length of 1-2 mm, 0.3-0.7 part of terylene staple fiber having a length of 3-5 mm, 45-55 parts of a sulfuric acid solution having a concentration of 1.4-1.6 g/cm<3> and 45-55 parts of a sulfuric acid solution having a concentration of 1.1-1.3 g/cm<3>. The lead paste is capable of facilitating preparation, filling and coating processes, enhancing the strength of polar plate, reducing the rejection rate of the polar plate, improving the battery capacity, increasing the deep discharging time, prolonging the service lifetime of the battery and improving the comprehensive performances of the battery. According to the lead paste and the preparation method thereof, the method and the design are reasonable, operation is simple, and the production efficiency is largely increased.

Description

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Claims

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Application Information

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Owner HENAN CHAOWEI POWER SUPPLY
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