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A kind of preparation method of lead-acid battery positive electrode curing-free lead paste

A lead-acid battery and lead paste technology, which is applied in the direction of lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of tedious, lengthy, time-consuming and wasteful production process of lead-acid batteries

Active Publication Date: 2017-12-29
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But at the same time, lead-acid batteries also have the disadvantage of cumbersome and lengthy production process, especially the curing and drying process of the plates. The curing process is time-consuming and wastes energy such as electricity and heat.

Method used

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  • A kind of preparation method of lead-acid battery positive electrode curing-free lead paste
  • A kind of preparation method of lead-acid battery positive electrode curing-free lead paste
  • A kind of preparation method of lead-acid battery positive electrode curing-free lead paste

Examples

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Embodiment 1

[0032] A preparation method of a lead-acid storage battery positive electrode curing-free lead paste, comprising the following steps:

[0033] (1) Dry mixing: dry mix the lead paste raw materials in the paste mixing machine for 1 min;

[0034] (2) Wet mixing: Heat the lead paste raw materials in the paste machine with electric heating for 1 minute, and then add hot water at 60°C for 5 minutes of wet mixing;

[0035] (3) Acid addition: add the preheated compound acid after 1 minute of wet mixing, and the temperature of the preheated compound acid is 60°C;

[0036] (4) Stirring: After adding the acid, stir for 5 minutes with the paste machine to obtain the lead paste;

[0037] (5) Paste output and plate coating: After the stirring is completed, turn off the heating function of the paste machine, and pass in cooling water, and at the same time turn on the cooling fan of the paste machine to cool down. When the temperature of the lead paste drops to 35°C, the paste is discharged ...

Embodiment 2

[0041] A preparation method of a lead-acid storage battery positive electrode curing-free lead paste, comprising the following steps:

[0042] (1) Dry mixing: dry mix the lead paste raw materials in the paste mixing machine for 3 minutes;

[0043] (2) Wet mixing: heat the raw materials of the lead paste in the paste machine with steam heating for 1 minute, and then add hot water at 60°C for 5 minutes of wet mixing;

[0044] (3) Acid addition: 5 minutes after the wet mixing, add the preheated compound acid, and the temperature of the preheated compound acid is 60°C;

[0045] (4) Stirring: After adding the acid, stir for 15 minutes in the paste mixing machine to obtain the lead paste;

[0046] (5) Paste output and plate coating: After the stirring is completed, turn off the heating function of the paste machine, and pass in cooling water, and at the same time turn on the cooling fan of the paste machine to cool down. When the temperature of the lead paste drops to 35°C, the pas...

Embodiment 3

[0050] A preparation method of a lead-acid storage battery positive electrode curing-free lead paste, comprising the following steps:

[0051] (1) Dry mixing: dry mix the lead paste raw materials in the paste mixing machine for 4 minutes;

[0052] (2) Wet mixing: heat the lead paste raw materials in the paste mixing machine for 2 minutes, then add hot water at 70°C for 6 minutes of wet mixing;

[0053] (3) Acid addition: 6 minutes after the wet mixing, add the preheated compound acid, and the temperature of the preheated compound acid is 70°C;

[0054] (4) Stirring: After adding acid, stir for 20 minutes with a paste mixer to obtain lead paste;

[0055] (5) Paste output and plate coating: After the stirring is completed, turn off the heating function of the paste machine, and pass in cooling water, and at the same time turn on the cooling fan of the paste machine to cool down. When the temperature of the paste drops to 40°C, the paste is discharged and painted board;

[005...

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PUM

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Abstract

The invention belongs to the production field of a lead-acid storage battery, and provides a preparation method for lead paste used for a lead-acid storage battery positive electrode and capable of saving a curing process. According to the preparation method, a lead-acid storage battery paste-mixing dynamic principle is adopted; high-temperature hot water paste mixing is performed, and a rapid acidification process is carried out; hot water or steam passes through a jacket of a paste mixer to provide external hot source to keep the temperature of the paste at 70-100 DEG C; alkali lead sulfate in the lead paste can be fully generated by the high temperature in the paste mixing process by the paste mixer; high binding force among the paste active substances can be achieved by controlling the paste mixing time; therefore, when the lead paste prepared by the preparation method is used for manufacturing a positive electrode plate for the lead-acid storage battery, a troublesome curing process is not required; instead, the positive electrode plate with an excellent performance can be obtained by only requiring a special drying process; when a polar plate is coated with the lead paste prepared by the invention, the polar plate does not require to be cured; and therefore, production efficiency can be improved, energy consumption can be lowered, and the preparation method is quite suitable for the manufacturing industries of the lead-acid storage battery.

Description

technical field [0001] The invention belongs to the field of lead-acid storage battery production and manufacturing, and in particular relates to a preparation method of a non-curing lead paste for the anode of a lead-acid storage battery. Background technique [0002] Lead-acid battery has a history of more than 150 years since it was invented by Plant in 1859. The technology is very mature and it is the most widely used chemical power source in the world. Although new batteries such as nickel-cadmium batteries, nickel-metal hydride batteries, and lithium-ion batteries have been introduced and applied in recent years, lead-acid batteries still rely on high-current discharge performance, stable voltage characteristics, wide temperature range, and large single-cell capacity. It can charge and discharge hundreds of cycles, good storage performance (especially suitable for dry charge storage), high safety, rich and renewable raw materials, low price and other advantages, in mos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/56H01M4/57H01M4/16H01M4/21
CPCH01M4/16H01M4/21H01M4/56H01M4/57Y02E60/10
Inventor 李伟伟黄思淼叶剑马永泉
Owner CHAOWEI POWER CO LTD