Lead-acid storage battery collide electrolyte, preparation method thereof and lead-acid storage battery

A technology of lead-acid battery and colloidal electrolyte, which is applied in the direction of lead-acid battery, lead-acid battery construction, and final product manufacturing. The effect of the loss of

Inactive Publication Date: 2012-06-27
SHANDONG HONGYI POWER SUPPLY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lead-acid battery colloidal electrolyte contains sodium molybdate, calcium molybdate, magnesium molybdate and sodium tungstate as stabilizers, which improves the overall charge acceptance of the lead-acid battery and prolongs the charge-discharge cycle life of the lead-acid battery , but due to the long-term use of the battery, the electrolyte dehydration and other problems are still serious, so that the number of cycles is only increased to 280 to 320 times, so the cycle life of the lead-acid battery still needs to be further improved

Method used

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preparation example Construction

[0048] The present invention also provides a preparation method of lead-acid battery colloidal electrolyte, comprising:

[0049] 40wt%-47wt% of sulfuric acid, 0.8wt%-1wt% of nano silicon dioxide, 0.1wt%-0.5wt% of hydroxyethyl cellulose, 0.1wt%-0.5wt% of ammonium sulfate, 0.1wt%- The phosphoric acid of 0.5wt% is mixed with water to obtain the colloidal electrolyte of the lead-acid storage battery.

[0050] The present invention has no particular limitation on the mixing. In the present invention, the preparation method is preferably:

[0051] mixing 0.1wt% to 0.5wt% of hydroxyethylcellulose, 0.1wt% to 0.5wt% of ammonium sulfate, 0.1wt% to 0.5wt% of phosphoric acid and water to obtain a first mixed solution;

[0052] mixing 40wt%-47wt% sulfuric acid with the first mixed solution to obtain a second mixed solution;

[0053] Mixing 0.8wt%-1wt% nano silicon dioxide with water to obtain a suspension;

[0054] The suspension is mixed with the second mixed solution to obtain a coll...

Embodiment 1

[0066] Sieve 0.5% hydroxyethyl cellulose accounting for the total weight of the lead-acid battery colloidal electrolyte into water at 80°C under stirring until the solution is transparent, then add 0.5% sulfuric acid respectively accounting for the total weight of the lead-acid battery colloidal electrolyte ammonium and 0.5% phosphoric acid to obtain the first mixed solution;

[0067] The sulfuric acid that accounts for 40% of lead-acid battery colloidal electrolyte gross weight is mixed with the first mixed solution under stirring, obtains the second mixed solution;

[0068] Adding 1% nano silicon dioxide to water under stirring to obtain a suspension;

[0069] The suspension is added into the second mixed solution under stirring to obtain the lead-acid storage battery colloidal electrolyte.

[0070] The obtained colloidal electrolyte solution of the lead-acid storage battery is injected into the battery by using an acid filling machine to obtain the lead-acid storage batter...

Embodiment 2

[0073] Sieve 0.3% of the hydroxyethyl cellulose accounting for the total weight of the lead-acid battery colloidal electrolyte into water at 90°C under stirring until the solution is transparent, then add 0.3% of the total weight of the lead-acid battery colloidal electrolyte. Sulfuric acid ammonium and 0.3% phosphoric acid to obtain the first mixed solution;

[0074] The sulfuric acid that accounts for 45% of lead-acid battery colloidal electrolyte gross weight is mixed with the first mixed solution under stirring, obtains the second mixed solution;

[0075] Adding 0.9% nano silicon dioxide accounting for the total weight of the lead-acid battery colloidal electrolyte into water under stirring to obtain a suspension;

[0076] The suspension is added into the second mixed solution under stirring to obtain the lead-acid storage battery colloidal electrolyte.

[0077] The obtained colloidal electrolyte solution of the lead-acid storage battery is injected into the battery by us...

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Abstract

The invention provides lead-acid storage battery collide electrolyte, which comprises from 40 to 47wt% of sulfuric acid, from 0.8 to 1wt% of nano silica, from 0.1 to 0.5% of hydroxyethyl cellulose, from 0.1 to 0.5wt% of ammonium sulfate, from 0.1 to 0.5wt% of phosphoric acid and the balance water. The invention further provides a preparation method of the lead-acid storage battery collide electrolyte and a lead-acid storage battery. The lead-acid storage battery collide electrolyte comprises the hydroxyethyl cellulose, water retaining capacity of the hydroxyethyl cellulose is good, the hydroxyethyl cellulose has good flowing adjustability, loss of water of the electrolyte in a using process of the storage battery can be effectively reduced, and accordingly the cycle life of the lead-acid storage battery is prolonged. In addition, the hydroxyethyl cellulose has a good collide protecting effect, the stable colloid electrolyte can be obtained by a small quantity of silica, application is benefited, and cost is saved.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a lead-acid battery colloidal electrolyte, a preparation method thereof and a lead-acid battery. Background technique [0002] Since the lead-acid battery was invented in 1958, it has a history of more than 100 years. Lead-acid batteries have the advantages of simple structure, reliable performance, convenient use, easy access to raw materials and low price. They are widely used in many fields of national economy such as transportation, communication and national defense, and have become indispensable in social production and human life. energy products. [0003] The five major components of a lead-acid battery are the positive electrode, the negative electrode, the diaphragm, the electrolyte, and the battery case, among which the electrolyte is one of the main factors affecting battery performance. For valve-regulated sealed lead-acid batteries (VRLA), the electrol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/10H01M10/12
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 张秋艳韩丽利
Owner SHANDONG HONGYI POWER SUPPLY TECH
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