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Positive pole lead paste of lead acid battery and paste blending method thereof

A lead-acid battery, positive lead paste technology, applied in lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of energy consumption, difficulty in ensuring 4BS content, etc., and achieve the effect of increasing the temperature of lead powder and prolonging the mixing time.

Inactive Publication Date: 2016-06-08
ANHUI YONGHENG STORAGE BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Tetrabasic lead sulfate (4BS) is one of the main components of the positive electrode paste. The lead paste with 4BS as the main component is used for the positive electrode. After the formation, the battery can generate an active material α-pbO with a good skeleton. 2 , in order to ensure the service life and good electrical performance of the battery, it is necessary to ensure that the content of 4BS in the positive electrode paste of the battery must be controlled before charging. The generation of 4BS is not only related to the temperature, but also related to the time to reach the temperature. Most of the content of 4BS adopts the method of rapid heating, which not only consumes energy, but also makes it difficult to guarantee the content of 4BS.

Method used

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  • Positive pole lead paste of lead acid battery and paste blending method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 1000kg of lead powder, the amount of dilute sulfuric acid with a density of 1.4g / ml is 80L, and the amount of water added to 1kg of polyester is 110Kg;

[0038] figure 1 It is a flow chart of the method for blending the positive electrode paste of a lead-acid storage battery of the present invention. As shown in the figure, the method for blending the positive electrode paste of the present invention is prepared by the following steps:

[0039] (1) Put the lead powder and fiber into the paste machine for dry mixing;

[0040] (2) Add water and stir for the first time; add water and stir for the first time, the amount of water added is 25Kg of lead powder, and the stirring time is 6 minutes;

[0041] (3) Add water and stir again; add water and stir again, the amount of water added is 10Kg of lead powder, and the stirring time is 4min;

[0042] (4) Quickly add the remaining 75Kg of water and stir, the time for adding water is 2 minutes, and the stirring time is 1 m...

Embodiment 2

[0048] Weigh 1000kg of lead powder, the amount of dilute sulfuric acid with a density of 1.4g / ml is 90L, and the amount of water added to 1.5kg of nylon is 100Kg; the following steps are used to prepare:

[0049] (1) Put the lead powder and fiber into the paste machine for dry mixing;

[0050] (2) Add water and stir for the first time; add water and stir for the first time, the amount of water added is 20Kg of lead powder, and the stirring time is 6 minutes;

[0051] (3) Add water and stir again; add water and stir again, the amount of water added is 10Kg of lead powder, and the stirring time is 4min;

[0052] (4) Quickly add the remaining 70Kg of water and stir, the time for adding the remaining water is 2 minutes, and the stirring time is 1 minute;

[0053] (5) Add dilute sulfuric acid and continue stirring until the temperature rises to 75°C, turn on the circulating water to cool down; the time for adding dilute sulfuric acid is 13 minutes;

[0054] (6) Turn off the circu...

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Abstract

The invention discloses a positive pole lead paste of lead acid battery. The main component of lead paste is lead powder. The auxiliary components of lead paste are diluted sulfuric acid and fibers. For 1000 parts by weight of lead powder, 1.0 to 1.5 parts by weight of fiber is added, and the added diluted sulfuric acid accounts for 8 to 9 vol.% of lead powder. The invention also discloses a method for blending the lead paste. According to the method, water is added for three times during the preparation process, the temperature of lead powder is increased so as to generate more active substances (alpha-PbO2) with a good skeleton in lead paste, during the process of water addition, the oxygen on the water surface is brought into the lead powder, the lead powder is oxidized; after acid is added, the lowest generation time is maintained for a long time, and then the mixing time is prolonged so as to ensure that 4BS is generated as much as possible.

Description

technical field [0001] The invention belongs to the field of lead-acid batteries, and more specifically, the invention relates to a positive electrode paste of a lead-acid battery and a paste mixing method thereof. Background technique [0002] Tetrabasic lead sulfate (4BS) is one of the main components of the positive electrode paste. The lead paste with 4BS as the main component is used for the positive electrode. After the formation, the battery can generate an active material α-pbO with a good skeleton. 2 , in order to ensure the service life and good electrical performance of the battery, it is necessary to ensure that the content of 4BS in the positive electrode paste of the battery must be controlled before charging. The generation of 4BS is not only related to the temperature, but also related to the time to reach the temperature. Most of the 4BS content adopts the method of rapid heating, which not only consumes energy, but also makes it difficult to guarantee the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/57H01M4/14H01M4/16
CPCH01M4/14H01M4/16H01M4/57Y02E60/10
Inventor 吴荣良张泽波宋昭润
Owner ANHUI YONGHENG STORAGE BATTERY
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