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Mixed glue electrolytic liquid of plumbous acid accumulator and production thereof

A colloidal electrolyte, lead-acid battery technology, applied in lead-acid batteries and other directions, can solve problems such as difficult to effectively control process operations, limitations in promotion and application, and inability to perform electrolyte perfusion normally, so as to extend the service life of deep discharge cycles and improve capacity, the effect of improving gelling properties

Inactive Publication Date: 2006-03-15
江苏华富能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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. It is difficult to effectively control the process operation, often making the electrolyte perfusion impossible, which limits the popularization and application of this type of colloid.

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] 1. Preparation of electrolyte by sodium silicate method:

[0028] 1. Weigh 2.7 grams of silicon dioxide powder, 2.295~2.565 grams of NaOH alkali flakes, add 27 grams of deionized water, and stir for 20 to 35 minutes to prepare a sodium silicate solution.

[0029] 2. Mix 105.6 grams of analytically pure concentrated sulfuric acid and 43 grams of deionized water to obtain a dilute sulfuric acid aqueous solution with a concentration of 71%.

[0030] 3. Dissolve polyacrylamide and sodium polyacrylate in deionized water respectively to obtain polyacrylamide aqueous solution and sodium polyacrylate aqueous solution whose concentrations of polyacrylamide and sodium polyacrylate are 0.005% to 4%, respectively.

[0031] 4. Add 120 grams of an aqueous solution with a polyacrylamide concentration of 120 ppm and a sodium polyacrylate concentration of 80 ppm to the diluted sulfuric acid aqueous solution prepared in step 2, while stirring to form a mixed solution.

[0032] 5. Add the pre...

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Abstract

The mixed gelling electrolyte comprise sulfuric acid, SiO2, sodium sulphate, polyacrylamide, polypropylene sodium, lanthanum sulfate, cerium sulfate, tungsten oxide, molybdenum oxide and deionized water.

Description

Technical field: [0001] The invention relates to a production technology of colloidal electrolyte for power-type lead-acid batteries. Background technique: [0002] There are mainly two types of preparation methods for the existing colloidal electrolytes for power-type lead-acid batteries for electric bicycles: [0003] One type is: using sodium silicate as a gel forming agent, which can prevent acid leakage and improve the working environment, but the resulting colloid is unstable. Under the deep discharge cycle working mode, the colloid is prone to hydration and delamination. The original colloidal properties are lost, and the service life of the battery is shortened. Due to the addition of sodium silicate, the capacity of the lead-acid battery is reduced. In addition, the high viscosity of sodium silicate colloid makes it difficult to infuse the battery, which limits the application range. [0004] The other is: using vapor phase silica nano powder as a gelling agent, the prep...

Claims

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Application Information

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IPC IPC(8): H01M10/08
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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