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Electrolyte of lead-acid accumulator and preparation method thereof

A technology for the preparation of lead-acid batteries and electrolytes, which is applied in the direction of lead-acid batteries, lead-acid battery construction, acid electrolytes, etc. It can solve the problems of affecting the filling and use of batteries, easy mutual adsorption, and large specific surface area, etc. Effects of environmental protection performance, prevention of vulcanization, and enhancement of ultra-low temperature performance

Inactive Publication Date: 2010-11-10
冯家齐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small particle size and large specific surface area of ​​fumed silica, it is very easy to adsorb each other, aggregate into agglomerates and settle. Layer, which affects the filling and use of the battery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation method of the electrolyte of lead-acid accumulator, comprises the following steps:

[0019] A. Preparation of electrolyte active agent

[0020] Weigh each raw material according to the weight ratio in the following electrolyte active agent: 1000 kg of deionized water, 2 kg of nickel sulfate, 2 kg of cobalt sulfate, 25 kg of aluminum sulfate, 15 kg of sodium sulfate, 25 kg of magnesium sulfate, 20 kg of aluminum phosphate , 5 kilograms of lithium iodide, 5 kilograms of lithium chloride, 20 kilograms of lithium carbonate, and after it is mixed homogeneously, move into high-speed shearing machine and shear, make electrolyte active agent;

[0021] B, take by weighing each raw material by the weight portion proportioning of electrolyte: 25 kilograms of deionized water, 60 kilograms of dilute sulfuric acid solution, 1.8 kilograms of gas-phase method nano silicon dioxide, 2.5 kilograms of the electrolyte activator made in the step A, Among them, the resistivit...

Embodiment 2

[0027] The preparation method of the electrolyte of lead-acid accumulator, comprises the following steps:

[0028] A. Preparation of electrolyte active agent

[0029] Weigh each raw material according to the weight ratio in the following electrolyte active agent: 1000 kg of deionized water, 2 kg of nickel sulfate, 2 kg of cobalt sulfate, 25 kg of aluminum sulfate, 15 kg of sodium sulfate, 25 kg of magnesium sulfate, 20 kg of aluminum phosphate , 5 kilograms of lithium iodide, 5 kilograms of lithium chloride, 20 kilograms of lithium carbonate, and after it is mixed homogeneously, move into high-speed shearing machine and shear, make electrolyte active agent;

[0030] B. The raw materials of the electrolyte are weighed: deionized water, dilute sulfuric acid solution, gas-phase method nano-silica and electrolyte active agent are respectively 45 kg, 70 kg, 2.8 kg, and 3 kg, wherein the resistance of deionized water The density of the dilute sulfuric acid solution is 1.55, and the...

Embodiment 3

[0036] The preparation method of the electrolyte of lead-acid accumulator, comprises the following steps:

[0037] A. Preparation of electrolyte active agent

[0038] Weigh each raw material according to the weight ratio in the following electrolyte active agent: 1000 kg of deionized water, 2 kg of nickel sulfate, 2 kg of cobalt sulfate, 25 kg of aluminum sulfate, 15 kg of sodium sulfate, 25 kg of magnesium sulfate, 20 kg of aluminum phosphate , 5 kilograms of lithium iodide, 5 kilograms of lithium chloride, 20 kilograms of lithium carbonate, and after it is mixed homogeneously, move into high-speed shearing machine and shear, make electrolyte active agent;

[0039] B, each raw material that takes electrolyte: deionized water, dilute sulfuric acid solution, fumed nano silicon dioxide and electrolyte active agent are respectively: 35 kilograms, 65 kilograms, 2.3 kilograms, 2.75 kilograms, wherein, deionized water The resistivity reaches more than 18 megohms per centimeter, the...

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Abstract

The invention discloses an electrolyte of a lead-acid accumulator and a preparation method thereof. The electrolyte comprises the following raw materials in part by weight: 25 to 45 parts of deionized water, 60 to 70 parts of dilute sulfuric acid solution, 1.8 to 2.8 parts of gas-phase nanometer silicon dioxide and 2.5 to 3 parts of electrolyte activating agent, wherein the electrolyte activating agent is prepared from the following raw materials in part by weight: 1,000 parts of deionized water, 2 parts of nickel sulfate, 2 parts of cobalt sulfate, 25 parts of aluminum sulfate, 15 parts of sodium sulfate, 25 parts of magnesium sulfate, 20 parts of aluminium phosphate, 5 parts of lithium iodide, 5 parts of lithium chloride and 20 parts of lithium carbonate. Because the nickel sulfate, the cobalt sulfate, the lithium chloride and the lithium carbonate are added into the electrolyte activating agent, the large current charge and discharge and the ultra-low temperature performance of the accumulator are increased by 25 to 30 percent, and the service life of the accumulator is prolonged by 25 to 30 percent compared with the traditional accumulator with the traditional electrolyte. Because of the adoption of the nanometer silicon dioxide and the adoption of high-speed shearing way in the preparation method, the prepared electrolyte does not settle down within 30 days.

Description

technical field [0001] The invention relates to an electrolyte solution of a storage battery and a preparation method thereof, in particular to an electrolyte solution of a lead-acid storage battery and a preparation method thereof. Background technique [0002] At present, colloidal electrolyte is commonly used in the production of lead-acid batteries. One of the main preparation methods is to use fumed silica powder as a gelling agent. Because fumed silica powder has good thixotropy, fluidity and thickening When used in lead-acid batteries, it can improve the electrical performance of lead-acid batteries and prolong their service life. Therefore, fumed silica has been widely used as the material of choice to improve the performance of battery electrolyte in recent years. However, due to the small particle size and large specific surface area of ​​fumed silica, it is very easy to adsorb each other, aggregate into agglomerates and settle. layer, which affects the filling a...

Claims

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Application Information

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IPC IPC(8): H01M10/10H01M10/12
CPCH01M2300/0011H01M10/08Y02E60/126H01M10/06Y02E60/10Y02P70/50
Inventor 冯家齐
Owner 冯家齐
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