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Method for preparing electrolyte of colloid storage battery capable of carrying out deep high-power discharging

A colloidal battery and electrolyte technology, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve problems such as few researches, and achieve the effects of simple preparation process, low production cost, and improved utilization rate and charging efficiency

Inactive Publication Date: 2012-07-11
扬州鸿熙电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are few studies on the use of rare earths as electrolyte additives in colloidal electrolytes, especially their mechanism of action.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] Dilute the 98% concentrated sulfuric acid solution with deionized water into an aqueous sulfuric acid solution with a specific gravity of 1.38.

[0016] Measure 0.1ml of fumed silica in a 50ml small beaker, dissolve it in 9ml of deionized aqueous solution (ultrasound if necessary), add the solution in the small beaker to 18 ml of sulfuric acid aqueous solution with a specific gravity of 1.38 to form a solution, and Add 6 mg of cerium sulfate to 90 mg of colloidal liquid electrolyte with a silicon dioxide content of 0.3%, and the added cerium sulfate accounts for 0.02% of the total weight, and the battery electrolyte is formed after thorough mixing.

[0017] A large-capacity lead-acid battery assembled with this electrolyte can be charged for 4 hours and discharged for 110 minutes.

example 2

[0019] Dilute the 98% concentrated sulfuric acid solution with deionized water into an aqueous sulfuric acid solution with a specific gravity of 1.38.

[0020] Measure 0.1 ml of fumed silica in a 50ml small beaker, dissolve it in 9ml of deionized aqueous solution (ultrasound if necessary), add the solution in the small beaker to 18ml of sulfuric acid aqueous solution with a specific gravity of 1.38 to form a solution, and dissolve it at 90 0.6 mg of cerium sulfate is added to the colloidal liquid electrolyte with a silica content of 0.3%, and the added cerium sulfate accounts for 0.002% of the total weight, and is fully mixed to form a battery electrolyte.

[0021] A large-capacity lead-acid battery assembled with this electrolyte can be charged for 4 hours and discharged for 115 minutes.

example 3

[0023] Dilute the 98% concentrated sulfuric acid solution with deionized water into an aqueous sulfuric acid solution with a specific gravity of 1.38.

[0024] Measure 0.1ml of fumed silica in a 50ml small beaker, dissolve it in 9ml of deionized aqueous solution (ultrasound if necessary), add the solution in the small beaker to 18ml of sulfuric acid aqueous solution with a specific gravity of 1.38 to form a solution, and dissolve it in 90mg 6 mg of europium sulfate was added to the colloidal liquid electrolyte with a silicon dioxide content of 0.3%, and the added europium sulfate accounted for 0.02% of the total weight, and was fully mixed to form a battery electrolyte.

[0025] A large-capacity lead-acid battery assembled with this electrolyte can be charged for 4 hours and discharged for 140 minutes.

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PUM

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Abstract

The invention discloses a method for preparing electrolyte of a colloid storage battery capable of carrying out deep high-power discharging, belongs to the technical field of the battery industry and particularly relates to the technical field of production of the storage battery. The method comprises the following steps of: mixing cerous sulfate or europium sulfate and deionized water to prepare a composite additive; then dropwise adding the composite additive into silicon dioxide hydrosol; and finally, under a stirring condition, adding aqueous solution of sulfuric acid, which has the specific gravity of 1.38, to form the electrolyte of the colloid storage battery. When being charged for 4 hours, the high-capacity lead-acid storage battery assembled by using the electrolyte can discharge for 110 to 150 minutes. The electrolyte of the colloid storage battery can be widely applied to a power plant, a switching control system of a substation, an uninterruptible power supply, solar and wind energy storage power supplies and the like.

Description

technical field [0001] The invention belongs to the technical field of battery industry, in particular to the technical field of storage battery production. Background technique [0002] It has been nearly a century and a half since the application of the storage battery. With the advantages of cheap price, easy access to raw materials, convenient use, reliable performance, and simple structure, it has become a widely used storage battery with the largest consumption, and occupies a major position in the secondary battery industry. status. In order to further improve the discharge characteristics of the battery and increase the high-rate discharge capacity, some people began to study the preparation method of the colloidal electrolyte, and added additives to the colloidal electrolyte to improve the performance of the battery. Adding additives to the colloidal electrolyte has the advantages of not changing the industrial production process of the battery, low additional cost...

Claims

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Application Information

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IPC IPC(8): H01M10/0561
CPCY02E60/12Y02E60/10
Inventor 刘天晴王元有左明明
Owner 扬州鸿熙电气有限公司
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