Durable lead-acid storage battery positive electrode lead paste and preparation method thereof

A technology of lead-acid battery and positive electrode paste, applied in the direction of lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of shortened processing cycle of positive electrode paste and short service life of lead-acid batteries, so as to improve battery performance and Production efficiency, easy plate formation, and the effect of increasing 4BS content

Inactive Publication Date: 2021-10-22
SHUANGDENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the service life of the lead-acid battery is short in the prior art, and the processing cycle of the positive electrode lead paste needs to be shortened, and a kind of durable lead-acid battery positive electrode lead paste is proposed

Method used

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  • Durable lead-acid storage battery positive electrode lead paste and preparation method thereof

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Effect test

Embodiment 1

[0032] A durable lead-acid battery positive lead paste, including lead powder, short fiber, red lead, pure water and sulfuric acid, also includes tetrabasic lead sulfate (4BS) and carbon black, the amount of lead powder is 100 parts, short fiber 0.2 parts for red lead, 9 parts for red lead, 1 part for tetrabasic lead sulfate (4BS), 1.5 parts for carbon black, 13-14 parts for pure water, and 11 parts for sulfuric acid parts, the concentration of sulfuric acid is 50%.

[0033] Adding tetrabasic lead sulfate (4BS) can increase the 4BS content in the lead-acid battery plate and improve the 4BS crystal size. It can greatly accelerate the formation of 4BS during the paste and subsequent curing process, even at a slightly lower temperature. Formed quickly, adding carbon black can improve the porosity of the plate and the conductive network.

Embodiment 2

[0035] refer to figure 1 , a kind of preparation method of durable type lead-acid accumulator anode lead paste, comprises the following steps:

[0036] S1: Take 100 parts of lead powder and put it into the paste mixing machine for dry mixing;

[0037] S2: Add 0.2 parts of short fiber, 9 parts of red lead, 1 part of tetrabasic lead sulfate (4BS), and 1.5 parts of carbon black;

[0038] S3: Add 13-14 parts of pure water and continue stirring:

[0039] S4: Add 11 parts of 50% sulfuric acid, and continue to stir the lead paste evenly when adding;

[0040] S5: final mixing for 10 min.

[0041] The dry stirring time in S1 is controlled at 3 minutes, and the dry stirring for 3 minutes makes the lead powder that may be agglomerated be stirred away.

Embodiment 3

[0043] refer to figure 1 , a kind of preparation method of durable type lead-acid accumulator anode lead paste, comprises the following steps:

[0044] S1: Take 100 parts of lead powder and put it into the paste mixing machine for dry mixing;

[0045] S2: Add 0.2 parts of short fiber, 9 parts of red lead, 1 part of tetrabasic lead sulfate (4BS), and 1.5 parts of carbon black;

[0046] S3: Add 13-14 parts of pure water and continue stirring:

[0047] S4: Add 11 parts of 50% sulfuric acid, and continue to stir the lead paste evenly when adding;

[0048] S5: final mixing for 10 min.

[0049] The time for adding pure water to S3 is controlled at 2-3 minutes, and the mixing time is controlled at 5 minutes.

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Abstract

The invention discloses a durable lead-acid storage battery positive electrode lead paste, and belongs to the technical field of lead storage battery paste mixing processes. The durable lead-acid storage battery positive electrode lead paste comprises 100 parts of lead powder, 0.2 part of short fibers, 9 parts of red lead, 13-14 parts of pure water, 11 parts of sulfuric acid, 1 part of tetrabasic lead sulfate (4BS) and 1.5 parts of carbon black. Th concentration of the sulfuric acid is 50%. According to the invention, by adding the 4BS and the carbon black, on the basis of the same curing process, the content of 4BS in the lead-acid storage battery polar plate can be increased, the size of 4BS crystals can be improved, the battery formation difficulty can be reduced, and the battery performance and the production efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of lead storage battery and paste technology, in particular to a durable lead-acid storage battery cathode lead paste. Background technique [0002] At present, lead-acid batteries have an absolute advantage in the market due to their low price, safety and reliability, and abundant raw materials. However, lead-acid batteries have low charge formation current efficiency (less than 50%), long internalization time, and long recharge time. and other shortcomings, resulting in waste of electric energy and low production efficiency and limiting the further development of lead-acid batteries, because the performance (such as service life, etc.) of lead-acid batteries mainly depends on the positive electrode, so most of the existing research focuses on the improvement of the positive electrode , and the lead paste formula is the top priority. [0003] The formulation of the lead paste is related to the service life...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/57H01M4/16
CPCH01M4/57H01M4/16Y02E60/10
Inventor 王洪宇
Owner SHUANGDENG GRP
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