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Electrolyte of lead-acid battery and preparation method thereof

A lead-acid battery and electrolyte technology, applied in the direction of lead-acid battery, lead-acid battery construction, final product manufacturing, etc., can solve the problem of small nano-silica particle size, large specific surface area, affecting battery filling and use effects, etc. problem, to achieve the effect of good stability, good dispersion, good high current charge and discharge

Active Publication Date: 2010-03-31
深圳市夺标环保技术有限公司
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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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Examples

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Embodiment Construction

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

[0007] Deionized water (resistivity ≥ 16 megohms) 30.5kg

[0008] Dilute sulfuric acid (density 1.56) 65.0kg

[0009] Nanoscale fumed silica (average particle size 30nm) 2.0kg

[0010] Electrolyte active agent 2.0kg

[0011] Among them, deionized water has a resistivity of more than 16 megohms, a density of dilute sulfuric acid solution of 1.5-1.6, a particle size of nano-scale fumed silica of 20-40nm, and a specific surface area of ​​300m 2 / g or more, the components and proportions of the electrolyte active agent are prepared according to the following ratio:

[0012] Name Specification Dosage

[0013] Deionized water resistivity ≥ 16 megohm 100kg

[0014] Potassium sulfate analytically pure 2.0kg

[0015] Zinc sulfate analytically pure 2.0kg

[0016] Ammonium sulfate analytically pure 1.3kg

[0017] Magnesium sulfate analytically pure 2.5kg

[0018] Aluminum sulfate analytically ...

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PUM

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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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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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