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Lead plaster containing conductive agent and lead-acid storage battery

A lead-acid battery and conductive agent technology, applied in lead-acid batteries, battery electrodes, circuits, etc., can solve problems such as consumption and oxidation, and achieve the effects of large process current, increased capacity, and stable and long-lasting effect

Inactive Publication Date: 2021-01-12
上海春森欣能新能源科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The more and more commonly used conductive agents in lead-acid batteries are carbon-based conductive agents, but carbon-based conductive agents in the positive electrode of lead-acid batteries, or in the electrodes of polarity-reversed lead-acid batteries will increase with the number of battery cycles. Or polarity reversal or the increase in the number of reverse poles is quickly oxidized and consumed

Method used

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  • Lead plaster containing conductive agent and lead-acid storage battery
  • Lead plaster containing conductive agent and lead-acid storage battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052]In this example, the positive and negative lead paste of the lead-acid battery, the mass parts of each component of the lead paste are 100 parts of lead powder, 1 part of lead-tin 1wt.% alloy powder, 0.8 part of barium sulfate, 10 parts of dilute sulfuric acid, and 8.5 parts of ionized water. Among them, the lead-tin 1wt.% alloy means that the mass proportion of tin contained in the lead-tin alloy is 1%, and the following are similar.

[0053]The lead powder is ball milled lead powder with an oxidation degree of 75%; optionally, the lead powder may also be lead oxide with a degree of oxidation of 100%.

[0054]The method for preparing the positive and negative lead pastes of the present embodiment includes the following steps: weigh each component according to the above-mentioned lead paste formula, and add lead powder, lead-tin 1wt.% alloy powder, and barium sulfate into the paste machine Stir for 5 minutes, mix well, quickly add deionized water, stir for 5 minutes, then slowly add...

Embodiment 2

[0056]The difference from Example 1 is that the positive and negative lead pastes of the lead-acid battery of this example are composed of 100 parts of lead powder, 2 parts of lead-samarium 0.3wt.% alloy powder, and barium sulfate. 0.8 parts, 10 parts dilute sulfuric acid, 8.5 parts deionized water.

Embodiment 3

[0058]The difference from Example 1 is that the lead-acid battery positive and negative lead pastes of this example contain 100 parts by mass of lead powder and 0.5wt.% lead-lanthanum-tin 1wt.% alloy powder. 3 parts, 0.8 parts of barium sulfate, 10 parts of dilute sulfuric acid, 8.5 parts of deionized water.

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Abstract

The invention discloses a lead plaster containing a conductive agent, the conductive agent contained in the lead plaster is a lead alloy containing tin or rare earth, or a strip-shaped conductive object, the maximum size of the strip-shaped conductive object is not less than 0.5 mm, and the strip-shaped conductive object is made of lead, the lead alloy, the rare earth, rare earth oxide, tin, tin oxide and a composite material containing the same. The lead plaster containing the conductive agent can stably and durably improve the conductivity of an electrode of a polarity inversion type lead-acid storage battery in the polarity inversion or inversion process of a positive electrode and a negative electrode of the polarity inversion type lead-acid storage battery, so that the polarity inversion or inversion process of the battery can be carried out and completed relatively quickly and safely; the lead plaster containing the conductive agent can also improve the formation, charging and discharging efficiency and the like of polarity inversion type lead-acid storage batteries and other types of lead-acid storage batteries.

Description

Technical field[0001]The invention relates to battery materials and batteries, in particular to a lead paste and lead-acid batteries containing conductive agents.Background technique[0002]In the polarity reversal type lead-acid battery, in the process of reversing or reversing the polarity of the positive and negative electrodes, more lead sulfate is generated in the battery, which makes the conductivity of the electrode worse, the resistance increases, and the polarity is reversed. Or the process current of the reverse polarity process is small and the heat production is large, which is not conducive to the rapid and safe progress and completion of the polarity reversal or reverse polarity; the electrical conduction distance between the lead-acid battery current collector and the lead paste is large, which will cause the above Unfavorable phenomena and problems in the process of polarity reversal or reversal are more obvious. Adding a conductive agent to the lead paste of a lead-ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M10/06
CPCH01M4/624H01M4/626H01M10/06Y02E60/10
Inventor 杨春晓
Owner 上海春森欣能新能源科技发展有限公司
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