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Carbon-material-containing negative electrode lead paste homogenization process

A negative electrode paste and carbon material technology, applied to battery electrodes, lead-acid battery electrodes, electrical components, etc., can solve the problems of difficult homogeneity of carbon materials, and achieve the effects of easy implementation, saving production costs, and reducing environmental pollution

Inactive Publication Date: 2017-10-20
SHUANGDENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problem that it is difficult to homogeneously add carbon materials to the negative electrode paste in the prior art, and proposes a negative electrode paste homogenization process containing carbon materials, which realizes homogeneity through pre-mixing, acid dispersion and final mixing processes Purpose, the above process steps are simple, reasonable and easy to implement

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  • Carbon-material-containing negative electrode lead paste homogenization process
  • Carbon-material-containing negative electrode lead paste homogenization process

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Embodiment 1

[0022] Lead-carbon battery is a new type of battery developed on the basis of lead-acid battery. Its technological progress is mainly through adding an appropriate amount of carbon materials to the negative electrode paste to increase its service life. Due to the different physical properties and poor compatibility between carbon materials and lead powder, it is difficult to achieve homogeneous mixing by conventional mixing process. For this reason, the present invention proposes a kind of negative pole lead paste homogeneous process that contains carbon material, and this process is implemented according to the following steps:

[0023] 1.1 First, measure the carbon material and the low-density acid by weight percentage. The proportion of the carbon material measured in this embodiment is 25% of the low-density acid, and the acidity of the low-density acid is 1.24g / cm 3 ;

[0024] 1.2 Put the measured low-density acid in the dispersing equipment. The operating speed of the d...

Embodiment 2

[0029] Present embodiment is identical with embodiment 1 process route, and only part parameter values ​​are different, and its steps are as follows:

[0030] 1.1 First, measure the carbon material and the low-density acid by weight percentage. The weight of the carbon material measured in this embodiment accounts for 20% of the weight of the low-density acid, and the acidity of the low-density acid is 1.20g / cm 3 ;

[0031] 1.2 Place the measured low-density acid in the dispersing equipment. The operating speed of the dispersing equipment in this embodiment is 3000r / min;

[0032] 1.3 Then add the carbon material evenly into the dispersing equipment, the carbon material and the low-density acid are dispersed at a high speed for 40 minutes to obtain the premix;

[0033] 1.4 For filtration treatment, the excess low-density acid in the premix is ​​filtered out to obtain a paste material, and 62% of the low-density acid is filtered out in this embodiment;

[0034] 1.5 For the pas...

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Abstract

The invention discloses a carbon-material-containing negative electrode lead paste homogenization process, which is performed according to the following steps of taking carbon materials and low-density acid in percentage by weight: putting the weighed low-density acid into dispersing equipment; then, uniformly adding the carbon materials into the dispersion equipment; obtaining premixed materials after the dispersion treatment on the carbon materials and the low-density acid; filtering away the excessive low-density acid in the premixed materials to obtain the paste carbon material. During the paste mixing, firstly, the lead powder and the additives are taken according to the proportion; then, the paste carbon material accounting for 10 to 12 percent of the lead powder is taken; according to the addition mode, the paste carbon material is added into the lead powder together with the additives; through sufficient mixing, the homogenized negative electrode lead paste is obtained. The prepared negative electrode lead paste uses the pre-mixing work procedure, so that the carbon material is sufficiently dispersed into the lead paste ingredient; the goal of reinforcing the texture density is achieved through the homogenization; therefore the sulfation resistance of a negative electrode plate is obviously improved; the charging and discharging times of the prepared negative electrode plate reach the electric network equipment matching requirements.

Description

technical field [0001] The invention relates to a homogeneous process for making battery lead paste, specifically, the invention relates to a process for homogenizing negative electrode paste for lead-carbon batteries, especially a process for homogenizing negative electrode paste containing carbon materials . Background technique [0002] Power grid equipment is composed of some energy equipment. Such public infrastructure projects are usually large in scale and require a lot of investment. Therefore, there are strict requirements on the performance indicators of supporting equipment, especially high requirements on safety and reliability indicators. For example, the design specification of the industry requires that the battery life of supporting wind power or solar power generation equipment is 15 years, calculated as one charge and discharge per day, and has a charge and discharge capacity of 5,500 times. The average service life of lead-acid batteries on the market tod...

Claims

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Application Information

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IPC IPC(8): H01M4/14H01M4/57H01M10/42H01M4/583H01M4/62
CPCH01M4/14H01M4/57H01M4/583H01M4/625H01M10/4235Y02E60/10
Inventor 徐小亮薛奎网曾刘芳
Owner SHUANGDENG GRP