Nanometer silicon oxide colloid electrolyte for lead-acid storage battery and its preparing method

A technology of nano-silicon oxide and colloidal electrolyte, applied in lead-acid batteries, etc., can solve the problems of limited popularization and application, electrolyte infusion can not be carried out normally, etc., and achieve the effect of increasing capacity, improving gelation characteristics, and improving rheology

Inactive Publication Date: 2006-02-22
江苏华富能源有限公司
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AI Technical Summary

Problems solved by technology

However, the gel properties and rheological properties of this type of colloid are affected by the process conditions, and the changes are extremely significant, which often makes the electrolyte perfusion unable to proceed normally, which limits the popularization and application of this type of colloid.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0021] 1. Weigh 4.35-5.56 grams of fumed silica nanopowder, add 50 grams of water, and stir for 30 minutes to prepare a fumed silica suspension with a fumed silica content of 8% to 10%.

[0022] 2. Mix 0.001-0.05 grams of lanthanum sulfate, 0.001-0.05 grams of cerium sulfate, 0.001-0.05 grams of tungsten oxide, 0.001-0.05 grams of molybdenum oxide and deionized water to form 40 grams of deionized water mixture.

[0023] 3. Add 105.6 grams of analytically pure concentrated sulfuric acid to 40 grams of deionized water mixed solution containing lanthanum sulfate, cerium sulfate, tungsten oxide and molybdenum oxide to obtain 145.6 grams of dilute sulfuric acid aqueous solution.

[0024] 4. Dissolving polyacrylamide and sodium polyacrylate in deionized water to obtain a mixed aqueous solution of polyacrylamide and sodium polyacrylate containing 0.005% to 4% by weight of polyacrylamide and sodium polyacrylate respectively.

[0025] 5 Add the obtained 145.6 grams of dilute sulfuric a...

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Abstract

Disclosed a nanometer monox colloid electrolytic solution of lead-acid storage battery and its preparing method, relates to the manufacturing technique of lead-acid storage battery colloid electrolytic solution special for the electric bicycle. The invention prepares the nanometer monox colloid electrolytic solution by using the lead-acid analytical pure vitriol, vapor phase silica dioxide nanometer powder, salt cake, and the deionized water as main material, which are mixed to be added polyacrylamide and poly-sodium acrylate as gel modifying agent; then, adding litter lanthanum sulfate, cerous sulfate, tungsten oxide, and molybdenum oxide. The invention avoids the disadvantage effect of using sodium silicate colloid; uses vapor phase silica dioxide nanometer powder as gel agent; adds little chemical components, to form the new colloid electrolytic solution which can improve the agglutination property, increase the capacity of accumulator, and prolong the service life of deep discharging cycle. In addition, the invention can be used as electrolytic solution to replace present vitriol water electrolytic solution, to improve the rheological property of colloid electrolytic solution, and control the electrolytic process of water.

Description

Technical field: [0001] The invention relates to the production technology of colloidal electrolyte for lead-acid batteries dedicated to electric bicycles. Background technique: [0002] Existing colloidal electrolytes for lead-acid batteries mainly contain two types of preparation methods: [0003] The first type uses sodium silicate as a gelling agent, which can prevent acid leakage and improve the working environment, but the generated colloid is unstable. Under the deep discharge cycle working mode, the colloid is prone to hydration and stratification. Lose the original colloidal properties and shorten the service life of the battery. Due to the addition of sodium silicate, the capacity of the lead-acid battery is reduced. In addition, the viscosity of sodium silicate colloid is high, and it is difficult to perfuse the battery, which limits the scope of application. [0004] The second type uses fumed silicon dioxide nano-powder as a gelling agent. After the colloidal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/08H01M10/10
CPCY02E60/126Y02E60/10
Inventor 居春山陈小川魏相庚
Owner 江苏华富能源有限公司
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