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Positive pole lead paste formula for lead-acid battery

A technology for positive electrode paste and lead-acid batteries, applied in the direction of lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of easy decomposition of additives, increased formation time, red lead poisoning, etc.

Inactive Publication Date: 2003-03-19
江苏隆源双登电源有限公司
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

The general response to this situation is to increase the formation time. The result of this is to increase the battery manufacturing cycle and consume too much power, resulting in a waste of resources.
People have tried to improve this situation by adding positive electrode additives, but due to the high electrode potential of the positive electrode of lead-acid batteries, the additives are easy to decompose, so this work has not been carried out smoothly.
Later, it was proposed to add red lead (Pb 3 o 4 ), a better solution to this problem, but because red lead has a certain degree of toxicity, it is imperative to find a more suitable formula

Method used

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Embodiment Construction

[0007] Lead dioxide in waste batteries can be prepared by the following method: select a positive plate with a qualified capacity from waste batteries, wash it with pure water, dry it, then grind it, and pass it through a 150-250 mesh sieve, then it can be used in the paste when used as an additive. An example is as follows: each component is weighed according to the following weight percentage: 68.9% of lead powder, 13% of lead dioxide, 0.1% of short fiber, 13% of water, 5% of sulfuric acid, and a 2V5Ah battery is made, which is formed in the battery and the result of the formation is It shows that the content of lead dioxide in the positive plate has reached 91%, while the content of lead dioxide in the battery with common formula is only 82% after chemical formation reaction, and the capacity of the battery has been greatly improved.

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Abstract

The positive pole lead paste formula consists of lead powder 60-80 wt%, PbO2 5-20 wt%, dry short fiber 0.1-0.15 wt%, water 10-15 wt% and sulfuric acid 4-10 wt%. The addition of PbO2 to form skeleton of positive electrode before reduction can reduce through voltage, raise the current forming efficiency, shorten forming time and save cost. Using recovered PbO2 as additive can protect environment, and the addition of dry short fiber can increase the binding force between the active matters to ensure the enough strength of the positive pole.

Description

technical field [0001] The invention relates to a lead-acid battery cathode lead paste formula, which belongs to the technical field of lead-acid batteries. Background technique [0002] The performance of lead-acid batteries mostly depends on the performance of the positive electrode. For a long time, the positive electrode of lead-acid batteries has problems such as difficult formation and low conversion rate of active materials (especially when using battery formation), which makes the performance of lead-acid batteries has been severely affected, especially in terms of weight-to-energy. The general response to this situation is to increase the formation time. The result of this is to increase the battery manufacturing cycle and consume too much power, resulting in a waste of resources. People have tried to improve this situation by adding positive electrode additives, but due to the high electrode potential of the positive electrode of lead-acid batteries, the additives...

Claims

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Application Information

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IPC IPC(8): H01M4/14H01M4/36H01M4/62
CPCY02E60/126Y02E60/10
Inventor 杨宝峰邵双喜金笛管雄俊
Owner 江苏隆源双登电源有限公司
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