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Electrolyte of lead-acid battery and preparation method thereof

A lead-acid battery, electrolyte technology, applied in lead-acid battery, lead-acid battery construction, sustainable manufacturing/processing, etc. Small and other problems, to achieve good high current charge and discharge, good dispersion, good stability

Inactive Publication Date: 2012-07-11
深圳市夺标环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the small particle size and large specific surface area of ​​nano-silica, it is very easy to adsorb each other and cause agglomeration and sedimentation. When it is applied to the battery electrolyte, it will cause sedimentation and stratification in a short time due to poor dispersion, which will affect the filling of the battery. and the effect of using

Method used

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  • Electrolyte of lead-acid battery and preparation method thereof
  • Electrolyte of lead-acid battery and preparation method thereof

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Embodiment Construction

[0006] The electrolyte is prepared according to the following proportions by weight:

[0007]

[0008] Among them, the resistance of deionized water is not less than 16 megohms, the density of dilute sulfuric acid solution is 1.5-1.6, the particle size of nano-scale fumed silica is 20-40nm, and the specific surface area is 300m 2 / g or more, the components of the electrolyte active agent and their weight ratios are prepared according to the following ratio:

[0009]

[0010] Follow the steps in the following order, the first step: put 2.0kg potassium sulfate, 2.0kg zinc sulfate, 1.3kg ammonium sulfate, 2.5kg magnesium sulfate, 3.0kg aluminum sulfate, 1.5kg sodium sulfate, 1.3kg cobalt sulfate, 2.5kg aluminum phosphate , 0.5kg lithium iodide was dissolved in 100kg deionized water, and mixed uniformly to obtain an electrolyte activator; the second step: 30.5kg deionized water, 2.0kg nano-scale fumed silica, 2.0kg electrolyte activator, Mix 65.0 kg of dilute sulfuric acid ...

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Abstract

The invention relates to an electrolyte of lead-acid battery and preparation method thereof. The electrolyte comprises the following raw materials by parts by weight: 20-40 parts of deionized water, 62-68 parts of dilute sulphuric acid, 1.5-2.5 parts of nano aerosol and 2-2.5 parts of electrolyte active agent; wherein the electrolyte active agent is formed by analytically pure potassium sulphate, zinc sulphate, ammonium sulphate, magnesium sulphate, aluminium sulphate, sodium sulphate, cobalt sulphate, aluminium phosphate and lithium iodide in certain ratio; and multiple micro elements are added into the electrolyte, so that the nano silicon oxide particles have favourable dispersity, the prepared electrolyte has no sedimentation, flocculation or layering for a long time, and meantime service life and environmental performance of battery can be effectively improved.

Description

technical field [0001] The invention relates to an electrolyte and a preparation method thereof, in particular to an electrolyte of a lead-acid storage battery and a preparation method thereof. Background technique [0002] At present, colloidal electrolyte is commonly used in the production of lead-acid batteries. One of the main preparation methods is to use nano-fumed silica powder as a gelling agent. Because nano-fumed silica powder has good thixotropy, fluidity, and Consistency, used in lead-acid batteries, can improve the electrical properties of lead-acid batteries and prolong the service life. Therefore, nano fumed silica has been widely used as the first choice material to improve the function of battery electrolyte in recent years. However, due to the small particle size and large specific surface area of ​​nano-silica, it is very easy to adsorb each other and cause agglomeration and sedimentation. When it is applied to the battery electrolyte, it will cause sedime...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/08H01M10/12
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 周逢能钟言荣龚招栋
Owner 深圳市夺标环保技术有限公司
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