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Colloid electrolyte of storage battery and preparation method thereof

A colloidal electrolyte and battery technology, applied in lead-acid batteries, etc., can solve problems such as low glue filling efficiency, poor battery performance, and difficult glue filling, and achieve the effects of increasing glue filling speed, improving fluency, and improving wettability

Inactive Publication Date: 2011-04-06
广西天鹅蓄电池有限责任公司 +1
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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 difficult glue pouring, low glue pouring efficiency, poor battery performance and short service life caused by the poor glue pouring fluidity of the existing battery colloidal electrolyte, and then provide a battery gelled electrolyte and its preparation method

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0013] The accumulator colloidal electrolyte that this specific embodiment provides is made by the following method: Under constant stirring, 2.9g specific surface area is 400m 2 / g gas phase nano-SiO 2 Gradually added to 97.1g dilute sulfuric acid solution with a concentration of 35%, heated up to 50°C and stirred vigorously for 2 hours to obtain colloidal dispersion A; Add ZnO whiskers to dispersion A, continue to stir vigorously for 4 hours, cool down to room temperature, and obtain dispersion B; under stirring conditions, dissolve 1 g of starch, 3 g of sodium sulfate and 4.5 g of phosphoric acid into dispersion B and dissolve until dispersed In liquid B, continue stirring for 1 hour to obtain a colloidal electrolyte with good thixotropic fluidity and gel stability. The viscosity of the control colloid without ZnO whiskers was 1398mPa.s, and the viscosity of the colloid with ZnO whiskers was 174mPa.s.

specific Embodiment approach 2

[0014] The accumulator colloidal electrolyte that this specific embodiment provides is made by the following method: Under constant stirring, 10g specific surface area is 150m 2 / g gas phase nano-SiO 2 Gradually added to 90g of dilute sulfuric acid solution with a concentration of 40%, heated to 50°C and stirred vigorously for 4 hours to obtain 100g of colloidal dispersion A; Needle-shaped MgO whiskers were added to the dispersion A, and continued to stir vigorously for 6 hours, then cooled to room temperature to obtain the dispersion B; under stirring conditions, 1.5g sucrose, 3.5g sodium sulfate, 0.05g cobalt sulfate and 5.0g phosphoric acid Dissolved in dispersion B and continued to stir for 2 hours to obtain a colloidal electrolyte with good thixotropic fluidity and gel stability. The viscosity of the control colloid without MgO whiskers was 2471mPa.s, and the viscosity of the colloid with MgO whiskers was 426mPa.s.

specific Embodiment approach 3

[0015] The battery colloidal electrolyte provided in this specific embodiment is prepared by the following method: 14.9g of the specific surface area is 100m under constant stirring 2 / g gas phase SiO 2 Gradually added to 85.1g dilute sulfuric acid solution with a concentration of 45%, heated to 50°C and stirred vigorously for 8 hours to obtain colloidal dispersion A; Add the glass microfibers into the dispersion A, continue to stir vigorously for 8 hours, cool down to room temperature, and obtain the dispersion B; under stirring conditions, dissolve 3g of glycerol, 5g of sodium sulfate and 6.5g of phosphoric acid into the dispersion B, Stirring was continued for 3 hours to obtain a colloidal electrolyte with good thixotropic fluidity and gel stability. The viscosity of the control colloid without glass microfibers is 3219mPa.s, and the viscosity of the colloid with glass microfibers is 632mPa.s.

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Abstract

The invention discloses a colloid electrolyte of a storage battery and a preparation method thereof. The colloid electrolyte of the storage battery mainly comprises silicon-containing jellies, flow improvers, colloid intensifiers, complex additives and electrolytic solutions, wherein the flow improvers and the colloid intensifiers are acicular nanometer crystal whiskers or acicular nanometer microfibrils of oxides. The colloid electrolyte comprises the following components by weight percent: 2.9%-14.9% of gelatinizing agents, 0.05%-1% of the flow improvers, 8.5%-15% of the complex additives, and the balance of dilute sulfuric acid solutions. The colloid electrolyte has good thixotropic flowability and jel stability and low colloid kinematic viscosity, greatly enhances the colloid pouring efficiency of the colloid electrolyte and the immersional wetting action of the colloid electrolyte on a partition plate and a polar plate, is used for assembling the colloid storage batteries with different applications, has simple preparation process, greatly improves the smoothness of colloid pouring, improves the immersional wetting of colloids on the partition plate and the polar plate inside the storage battery and enhances the colloid pouring speed and the electrochemical property of the storage battery.

Description

technical field [0001] The invention relates to a battery colloidal electrolyte and a preparation method for the battery colloidal electrolyte. Background technique [0002] The existing colloidal battery mainly adopts valve control technology, which is a kind of sealed battery. The colloidal electrolyte in the gel state does not flow in the battery, so it is not easy to leak acid, which can effectively prevent the active material from falling off, effectively inhibit the growth and penetration of lead dendrites, reduce battery self-discharge, and prolong battery life. Compared with AGM valve-regulated batteries, gel batteries have obvious advantages in use. [0003] However, since the viscosity of the colloidal electrolyte used in the colloidal battery is much higher than that of the ordinary sulfuric acid electrolyte, this brings a severe test to the acid filling process of the battery; in addition, if the colloid is not strong enough, it may cause the colloid to Broken,...

Claims

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Application Information

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IPC IPC(8): H01M10/08
CPCY02E60/126Y02E60/10
Inventor 向力石光徐志宁李核陈红雨
Owner 广西天鹅蓄电池有限责任公司
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