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Electrolyte, manufacturing method thereof and lead-acid storage battery prepared from electrolyte

A lead-acid battery and electrolyte preparation technology, applied in lead-acid battery, lead-acid battery construction, final product manufacturing, etc., to reduce water loss, ensure cold-start life, and improve product consistency

Active Publication Date: 2022-04-12
CAMEL GRP XIANGYANG BATTERY
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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 problems of shrinkage of the negative electrode caused by the high and low temperature alternating environment or the high temperature use environment, and the decomposition of the negative electrode expansion agent in the high temperature environment, and provide a method that can delay the shrinkage of the negative electrode. It can also increase the starting performance of the battery, better adapt to the requirements of the start-stop system, and prolong the service life of the lead-acid battery

Method used

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  • Electrolyte, manufacturing method thereof and lead-acid storage battery prepared from electrolyte

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Manufacture of electrolyte:

[0047] (1) Preparation of porous silica nanoparticles: Take 2 parts by weight of cetyltrimethylammonium bromide and add 50 parts by weight of deionized water, which contains 0.5% by weight of ammonia water, cetyltrimethylammonium bromide Contain 0.5% by weight of triethanolamine in methyl ammonium bromide, heat to 75°C, continue stirring at a constant temperature for 60 minutes, then drop in 5 parts by weight of ethyl orthosilicate at a constant speed, control the time at about 10 minutes, and continue stirring at a constant temperature for 4 hours Finally, take it out and separate it with a centrifuge at 10,000 rpm for 10 minutes to obtain a white solid, dry it in a vacuum at 80°C for more than 12 hours, and then place it in a muffle furnace for calcination at 300°C for 10 hours to obtain porous silica nanoparticles. The size of silicon oxide nano-ions is between 100-200nm, and the pore size is 5-8nm;

[0048] (2) Prepare a solution conta...

Embodiment 2

[0058] Manufacture of electrolyte:

[0059] (1) Preparation of porous silica nanoparticles: Take 3 parts by weight of the structure-directing agent cetyltrimethylammonium bromide and add it to 100 parts by weight of deionized water, which contains 1% by weight of sodium hydroxide, Hexadecyltrimethylammonium bromide contains 5% by weight of triethanolamine, heat it to 60°C, continue to stir at constant temperature for 45 minutes, then drop in 6 parts by weight of tetraethyl orthosilicate at a constant speed, control the time at about 10 minutes, continue After stirring and reacting at constant temperature for 3 hours, take it out and separate it with a centrifuge at 10,000 rpm for 10 minutes to obtain a white solid, dry it in vacuum at 80°C for more than 12 hours, and then place it in a muffle furnace for calcination at 300°C for 10 hours to obtain porous silica Nano-ion, the size of porous silica nano-ion is between 50-100nm, and the pore size is 3-6nm;

[0060] (2) The prepa...

Embodiment 3

[0070] Manufacture of electrolyte:

[0071](1) Preparation of porous silica nanoparticles: Take 4 parts by weight of the structure-directing agent cetyltrimethylammonium bromide and add it to 100 parts by weight of deionized water, which contains 0.5% by weight of sodium hydroxide, Hexadecyltrimethylammonium bromide contains 3% by weight of triethanolamine, heat to 80°C, continue to stir at constant temperature for 30 minutes, then drop in 5 parts by weight of tetraethyl orthosilicate at a uniform speed, control the time at about 10 minutes, continue After stirring and reacting at constant temperature for 2 hours, take it out and separate it with a centrifuge at 10,000 rpm for 10 minutes to obtain a white solid, dry it in vacuum at 80°C for more than 12 hours, and then place it in a muffle furnace for calcination at 300°C for 10 hours to obtain porous silica Nano-ion, the size of porous silica nano-ion is between 200-300nm, and the pore size is 6-10nm;

[0072] (2) The prepar...

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Abstract

The invention relates to an electrolyte, a manufacturing method and a lead-acid storage battery prepared from the electrolyte. The manufacturing method comprises the following steps: preparing porous silicon dioxide nanoparticles; preparing a solution containing a dispersing agent and an organic expanding agent at the same time, dispersing the synthesized porous silicon dioxide nanoparticles in the solution, and performing ultrasonic treatment for later use; adding the solution into a sulfuric acid solution, placing the solution in a shaking table for oscillation at room temperature, and depositing or adsorbing the organic expanding agent on pores and the surface of the porous silicon dioxide; and adding sulfate to prepare the electrolyte. According to the lead-acid storage battery prepared by the electrolyte disclosed by the invention, the low-temperature and dynamic charge acceptance is greatly improved under the condition that the capacity requirement is met, the low-temperature discharge voltage is improved by 10-30%, and the dynamic charge acceptance is improved by 30-70%. And particularly, the high-low temperature alternate life or the high-temperature life is prolonged by 14-50%. Through real vehicle test, the service life of the battery is at least prolonged by more than half a year. The problems of insufficient shrinkage and low-temperature performance of the negative electrode can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of lead-acid storage batteries, in particular to an electrolyte for a lead-acid storage battery, a manufacturing method and a lead-acid storage battery prepared by the electrolyte. Background technique [0002] The car start-stop system means that the engine is automatically turned off when the vehicle is temporarily stopped (such as waiting for a red light) while the vehicle is running. When it is necessary to continue moving, the system automatically restarts the engine. In this system, when the engine is started frequently, the battery needs to support frequent high-current discharge; when the hybrid system provides power to the wheels, the battery needs to provide energy support, which can meet the needs of electrical equipment such as audio and lighting in the car; on-board charger When charging the battery, the battery must have a strong charge acceptance performance. At present, both AGM and liquid-r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/08H01M10/06H01M10/12
CPCY02E60/10Y02P70/50
Inventor 刘长来夏诗忠余萍高国兴
Owner CAMEL GRP XIANGYANG BATTERY
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