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Lead acid storage battery electrolyte additive and preparation method thereof

An electrolyte additive and lead-acid battery technology, applied in the direction of lead-acid batteries, etc., can solve the problems such as cycle life needs to be improved, and achieve the effect of improving charge acceptance, improving cycle life, and reducing internal resistance

Active Publication Date: 2013-04-17
易德维能源科技(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its cycle life still needs to be improved

Method used

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  • Lead acid storage battery electrolyte additive and preparation method thereof
  • Lead acid storage battery electrolyte additive and preparation method thereof
  • Lead acid storage battery electrolyte additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of electrolyte additive for 1# lead-acid battery

[0027] It is to use a certain amount of pure water obtained by ion exchange, add concentrated sulfuric acid and adjust the density to 1.28g / ml to prepare dilute sulfuric acid, take out 1L of dilute sulfuric acid and heat it to 40-45 degrees Celsius, and then gradually add ethylenediaminetetraacetic acid dilute Sodium 1500mg, aluminum sulfate 150mg, sodium sulfate 1000mg, cadmium sulfate 1200mg, stannous sulfate 1500mg, magnesium sulfate 4500mg, cobalt sulfate 350mg, copper sulfate 300mg, potassium sulfate 1000mg, and fully stirred, cooled to room temperature to obtain.

Embodiment 2

[0029] Preparation of electrolyte additive for 2# lead-acid battery

[0030] It is to use a certain amount of pure water obtained by ion exchange, add concentrated sulfuric acid and adjust the density to 1.30g / ml to prepare dilute sulfuric acid, take out 1L of dilute sulfuric acid and heat it to 40-45 degrees Celsius, and then gradually add ethylenediaminetetraacetic acid di Sodium 1600mg, aluminum sulfate 160mg, sodium sulfate 1100mg, cadmium sulfate 1300mg, stannous sulfate 1600mg, magnesium sulfate 5000mg, cobalt sulfate 380mg, copper sulfate 320mg, potassium sulfate 1100mg, and fully stirred, cooled to room temperature to obtain.

Embodiment 3

[0032] Preparation of electrolyte additive for 3# lead-acid battery

[0033] It is to use a certain amount of pure water obtained by ion exchange, add concentrated sulfuric acid and adjust the density to 1.32g / ml to prepare dilute sulfuric acid, take out 1L of dilute sulfuric acid and heat it to 40-45 degrees Celsius, and then gradually add ethylenediaminetetraacetic acid dilute Sodium 1600mg, aluminum sulfate 160mg, sodium sulfate 1100mg, cadmium sulfate 1300mg, stannous sulfate 1600mg, magnesium sulfate 5000mg, cobalt sulfate 380mg, copper sulfate 320mg, potassium sulfate 1100mg, and fully stirred, cooled to room temperature to obtain.

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Abstract

The invention discloses a lead acid storage battery electrolyte additive and a preparation method thereof. Concentrated sulphuric acid is added into a certain quantity of purified water obtained through ion exchange to prepare dilute sulfuric acid, EDTA (Ethylene Diamine Tetraacetic Acid), aluminum sulfate, sodium sulfate, cadmium sulfate, stannous sulfate, magnesium sulfate, cobaltous sulfate, copper sulfate and potassium sulfate are added into 1L dilute sulfuric acid, which is taken out and heated, step by step according to the formula quantity, and the mixture is fully stirred and cooled to the room temperature to obtain the lead acid storage battery electrolyte additive. According to the invention, the cycle life of a traditional storage battery is remarkably improved, lead dendritic crystals in the battery are effectively prevented from short circuit, the internal resistance of the battery in the later period of cycle life is reduced, the charge acceptance capability is improved, water loss during charging is reduced, heat generated during battery charging is decreased and the battery is protected against thermorunaway. The lead acid storage battery electrolyte additive is suitable for various lead acid storage batteries, such as lead acid storage batteries for starting up automobiles and motorcycles, deep-cycle batteries and AGM (Absorptive Glass Mat) valve-regulated sealed lead acid storage batteries for power vehicles, flat-plate / tubular flooded storage batteries and flat-plate / tubular colloid storage batteries and the like.

Description

technical field [0001] The invention relates to an electrolyte additive for a lead-acid storage battery and a preparation method thereof. Background technique [0002] Lead-acid batteries have been widely used in various fields, especially in the field of telecommunications, backup power, energy storage power and power applications, etc., but traditional lead-acid batteries also have a series of problems such as early capacity decay and short service life. Corrosion of the positive plate grid, softening and falling off of the lead paste, sulfation of the negative electrode, etc. [0003] Most of the current lead-acid battery additives are liquids, and the main function of the additive is to prevent deposits from forming on the lead plates of the batteries and remove lead sulfate deposits on corroded lead plates. After using liquid additives, although the original performance of the battery can be maintained, it has no effect on prolonging the life of the battery. [0004] ...

Claims

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Application Information

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IPC IPC(8): H01M10/08
CPCY02E60/10
Inventor 倪华胜
Owner 易德维能源科技(深圳)有限公司
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