Method for improving charging efficiency of lead-acid storage battery

A lead-acid battery, charging efficiency technology, applied in lead-acid batteries, battery electrodes, secondary batteries, etc., can solve the problems of reduced utilization of active materials, increased internal resistance of batteries, weakened conductivity, etc., to reduce charging losses. , The effect of improving charging efficiency and improving service life

Inactive Publication Date: 2020-09-04
安徽国成顺风风力发电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The charging efficiency of the lead-acid batteries disclosed in the prior art is average. As the number of charge and discharge increases, the discharge capacity decreases continuously, the conductivity becomes weaker, and the internal resistance of the battery increases, resulting in capacity attenuation and a decrease in the utilization rate of active materials.

Method used

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  • Method for improving charging efficiency of lead-acid storage battery

Examples

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Comparison scheme
Effect test

Embodiment 1

[0066] A method for improving the charging efficiency of lead-acid batteries, preparing composite powder:

[0067] The tin powder and the zinc powder are sintered at high temperature in a carbon dioxide atmosphere to obtain a sintered material, and the mixing mass ratio of the tin powder and the zinc powder is 6:2. The high temperature sintering temperature is 680°C;

[0068] Add selenium powder treated with a coupling agent to the sintered material, grind it in the presence of a dispersant, and then dry it, then heat it at a high temperature in an aerobic atmosphere to obtain a high-temperature composite product. The high-temperature heating The treatment temperature is 250°C, and the selenium powder treated with the coupling agent is as follows: the selenium powder is evenly dispersed in the ethanol solution, heated to 40°C, and then the coupling agent is added to the ethanol solution, while adding While stirring, after the addition is complete, continue to stir for 1 hour,...

Embodiment 2

[0071] A method for improving the charging efficiency of lead-acid batteries, preparing composite powder:

[0072] The tin powder and the zinc powder are sintered at high temperature in a carbon dioxide atmosphere to obtain a sintered material, and the mixing mass ratio of the tin powder and the zinc powder is 10:3. The high temperature sintering temperature is 780°C;

[0073] Add selenium powder treated with a coupling agent to the sintered material, grind it in the presence of a dispersant, and then dry it, then heat it at a high temperature in an aerobic atmosphere to obtain a high-temperature composite product. The high-temperature heating The treatment temperature is 300°C, and the selenium powder treated with the coupling agent is as follows: the selenium powder is evenly dispersed in the ethanol solution, heated to 45°C, and then the coupling agent is added to the ethanol solution, while adding While stirring, after the addition is complete, continue to stir for 1 hour...

Embodiment 3

[0076] A method for improving the charging efficiency of lead-acid batteries, preparing composite powder:

[0077] The tin powder and the zinc powder are sintered at high temperature in a carbon dioxide atmosphere to obtain a sintered material, and the mixing mass ratio of the tin powder and the zinc powder is 8:2.5. The high temperature sintering temperature is 720°C;

[0078] Add selenium powder treated with a coupling agent to the sintered material, grind it in the presence of a dispersant, and then dry it, then heat it at a high temperature in an aerobic atmosphere to obtain a high-temperature composite product. The high-temperature heating The treatment temperature is 280°C, and the selenium powder treated with the coupling agent is as follows: the selenium powder is evenly dispersed in the ethanol solution, heated to 42°C, and then the coupling agent is added to the ethanol solution, while adding While stirring, after the addition is complete, continue to stir for 1 hou...

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Abstract

The invention discloses a method for improving the charging efficiency of a lead-acid storage battery, and relates to the technical field of storage batteries. The preparation method comprises the following steps: preparing composite powder: carrying out high-temperature sintering treatment on tin powder and zinc powder in a carbon dioxide atmosphere to obtain a sintering material; adding seleniumpowder treated by a coupling agent into the sintering material, carrying out grinding in the presence of a dispersing agent, drying, and carrying out high-temperature heating treatment in an aerobicatmosphere to obtain a high-temperature composite product; grinding the high-temperature composite product in the presence of the dispersing agent, and then sieving the composite product to obtain composite powder; and adding the composite powder into the positive electrode material of the lead-acid storage battery. According to the method for improving the charging efficiency of the lead-acid storage battery, the charging efficiency of the lead-acid storage battery is improved to a certain extent by adding a certain mass fraction of composite powder into lead plaster of a positive electrode of the lead-acid storage battery.

Description

technical field [0001] The invention belongs to the technical field of storage batteries, in particular to a method for improving the charging efficiency of lead-acid storage batteries. Background technique [0002] The Frenchman Plant invented the lead-acid battery in 1859. It has experienced nearly 150 years of development. Lead-acid batteries have made great progress in theoretical research, product types and varieties, and product electrical properties. Lead-acid batteries have played an indispensable and important role in various economic fields such as transportation, communication, electric power, military affairs or navigation and aviation. [0003] According to the difference in the structure and use of lead-acid batteries, batteries are roughly divided into four categories: 1. Lead-acid batteries for starting; 2. Lead-acid batteries for power; 3. Fixed valve-controlled sealed lead-acid batteries; 4. Other types , including small valve-regulated sealed lead-acid ba...

Claims

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Application Information

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IPC IPC(8): H01M4/62H01M4/57H01M4/04H01M10/06H01M10/42
CPCH01M4/04H01M4/57H01M4/62H01M10/06H01M10/4235Y02E60/10
Inventor 唐子成
Owner 安徽国成顺风风力发电有限公司
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