Carbonaceous lead powder, its preparation method, battery lead paste and its application

A technology of lead powder and lead paste, which is applied in the field of battery preparation, can solve the problems of easy falling off and weak adhesion, and achieve the effects of improving electrical conductivity and cycle performance, preventing carbon particles from falling off, and reducing internal resistance

Active Publication Date: 2012-06-27
SHENZHEN CENT POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In view of this, the present invention provides a method for preparing lead powder, which solves the technical problem that the bonding force between the carbon material and the lead powder in the carbon-containing battery lead paste

Method used

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  • Carbonaceous lead powder, its preparation method, battery lead paste and its application
  • Carbonaceous lead powder, its preparation method, battery lead paste and its application
  • Carbonaceous lead powder, its preparation method, battery lead paste and its application

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preparation example Construction

[0028] see figure 1 , figure 1 Show the embodiment of the present invention to carry the flow chart of the method for preparing carbon-lead powder, including the following steps:

[0029] Step S01, preparing the first mixture:

[0030] Mixing organic carbon source monomers and lead powder to obtain a first mixture, the mass ratio of the organic carbon source monomers and lead powder being 0.02 to 0.4:1;

[0031] Step S02, preparing a second mixture:

[0032] heat-treating the first mixture in an inert atmosphere at a temperature of 500-800°C for 3-8 hours to obtain a second mixture;

[0033] Step S03, preparing a third mixture:

[0034] activating the second mixture with carbon dioxide or water vapor at a temperature of 700-850° C. to obtain a third mixture;

[0035] Step S04, preparing carbon-containing lead powder:

[0036] The third mixture is dried and crushed to obtain carbon-containing lead powder.

[0037] Specifically, in step S01,

[0038] The lead powder is o...

Embodiment 1

[0060] The preparation method of the super battery containing the above-mentioned battery lead paste of the present invention comprises the following steps:

[0061] (1) Weighing 10Kg of glucose and 100Kg of lead powder, mixing with a suitable mixer, stirring for 2 hours, making it evenly mixed to obtain the first mixture;

[0062] (2) Put the above-mentioned first mixture into the sintering kiln, and under the ambient condition of the presence of argon, pyrolyze it at 600°C for 7 hours to complete the carbonization process and obtain the second mixture. Carbonization makes the glucose change from a close-packed structure to Activated carbon structure with developed micropore structure and huge specific surface area;

[0063] (3) activating the second mixture with water vapor at 750° C. for 7 hours to obtain a third mixture;

[0064] (4) The third mixture is dried at 110° C., if there are lumps, gently crush and sieve to obtain carbon-containing lead powder;

[0065] (5) Pre...

Embodiment 2

[0068] (1) Weighing 20Kg of glucose and 100Kg of lead powder, mixing with a suitable mixer, stirring for 2 hours, making it evenly mixed to obtain the first mixture;

[0069] (2) Put the above-mentioned first mixture into a sintering kiln, and in the presence of argon, pyrolyze it at 700°C for 6 hours to complete the carbonization process and obtain the second mixture. Carbonization makes the glucose change from a close-packed structure to Activated carbon structure with developed micropore structure and huge specific surface area;

[0070] (3) activating the second mixture with water vapor at 800° C. for 7 hours to obtain a third mixture;

[0071] (4) The third mixture is dried at 110° C., if there are lumps, gently crush and sieve to obtain carbon-containing lead powder;

[0072] (5) Prepare battery lead paste by the raw materials of following proportioning by weight: lead powder: 100Kg (carbon-containing lead powder weight ratio is 50%), sulfuric acid: 9Kg (sulfuric acid d...

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Abstract

The invention is suitable for the technical field of battery preparation and provides a carbonaceous lead powder, its preparation method, a battery lead paste and its application. The preparation method of the carbonaceous lead powder contains steps of: preparing a first mixture, preparing a second mixture, preparing a third mixture, preparing the carbonaceous lead powder and the like. According to the preparation method of the carbonaceous lead powder, an organic carbon monomer and a lead powder undergo mixing, carbonization and activation to make carbon particles clad the external surface of the lead powder, thus greatly raising the bonding force between the carbon particles and the lead powder. The battery lead paste is prepared by the application of the above carbonaceous lead powder. By good bonding force between the carbon particles and the lead powder, problems such as carbon particle shedding, material dropping of a pole plate and the like are effectively prevented. Conductive performance and cyclic performance of the battery lead paste are significantly realized.

Description

technical field [0001] The invention belongs to the technical field of battery preparation, and in particular relates to a carbon-containing lead powder and a preparation method thereof, a battery lead paste and an application thereof. Background technique [0002] Super battery, also known as lead-carbon battery, is the latest upgraded replacement product of lead-acid battery. In English, Super battery or lead-carbon battery is a kind of lead-acid battery negative electrode with high content of activated carbon (carbon content mass percentage 0.5% to 3%) ), making it a new type of energy storage device with hybrid characteristics of batteries and supercapacitors. Since batteries have high energy storage ratio, low power ratio, and short service life; while supercapacitors have high power ratio, low energy storage ratio, and long service life, the effective combination of the two can play a role The effect of promoting strengths and avoiding weaknesses. Furthermore, the so...

Claims

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Application Information

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IPC IPC(8): H01M4/38H01M4/56H01M4/14
CPCY02E60/126Y02E60/10
Inventor 陈宏衣守忠裴祖奎洪鹤
Owner SHENZHEN CENT POWER TECH
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