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Preparation method of electrolyte of alkaline zinc battery

A technology of electrolyte and zinc batteries, which is applied in the direction of alkaline storage batteries, etc., and can solve the problems of battery electrical performance and insulation resistance decline, battery failure, etc.

Inactive Publication Date: 2012-12-19
SHANGHAI JINZHONG INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After a long period of electricity storage, the zinc electrode will dissolve and the diaphragm will degrade, which will lead to the decrease of the battery's electrical performance and insulation resistance, and eventually lead to the failure of the battery.

Method used

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  • Preparation method of electrolyte of alkaline zinc battery
  • Preparation method of electrolyte of alkaline zinc battery
  • Preparation method of electrolyte of alkaline zinc battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] base solution

[0027] The parts by mass of each component of the base solution are:

[0028]

[0029] The balance is deionized water

[0030] After the above components are dissolved and stirred sufficiently, a basic solution with a total alkali concentration of 5 mol / L is formed. Electrolyte additives are added to the base solution to form the final alkaline zinc battery electrolyte

[0031] Wherein the component of additive is by mass ratio:

[0032]

[0033] The additives of the above components accounting for 1% of the mass of the basic solution are added to the basic solution, heated and fully stirred to obtain an alkaline battery electrolyte.

Embodiment 2

[0035] base solution

[0036] The parts by mass of each component of the base solution are:

[0037]

[0038]

[0039] The balance is deionized water

[0040] After the above components are dissolved and fully stirred, a basic solution with a total alkali concentration of 8mol / L is formed; electrolyte additives are added to the basic solution to form the final alkaline zinc battery electrolyte

[0041] Wherein the component of additive is by mass parts:

[0042]

[0043] The additives of the above components accounting for 3% of the mass of the basic solution are added to the basic solution, heated and fully stirred to obtain an alkaline battery electrolyte.

[0044] The electrolytic solution that embodiment 1 and 2 prepares and existing electrolytic solution (comparative example) are used for the performance detection of alkaline zinc-nickel battery as follows:

[0045]

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PUM

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Abstract

The invention relates to a preparation method of an electrolyte of an alkaline zinc battery, a basic solution comprises the following components: KOH, LiOH, NaOH, ZnO, Na2Zn(OH)4 and plasma water; an addictive comprises the following components: polyacrylate, polyethylene glycol, polyacrylamide, zinc carbonate, sodium borate and lithium tungstate. The method comprises the following steps: adding the above components which accounts for 1-3% of mass of the basic solution in the basic solution, heating and fully stirring to obtain the electrolyte of alkaline zinc battery. The alkaline zinc battery by using the electrolyte has the advantages of good performance and long usage life.

Description

technical field [0001] The invention relates to a preparation method of battery electrolyte, in particular to a preparation method of alkaline zinc battery electrolyte. Background technique [0002] Alkaline zinc batteries have the characteristics of high cost performance, high power, low cost, and convenient use, and are widely used in civilian appliances. In an alkaline battery system using zinc as the negative electrode, the performance of the battery electrolyte determines the energy storage and energy density of the battery system. However, after long-term electric storage, the zinc electrode of the alkaline zinc battery will dissolve and the diaphragm will degrade, which will lead to a decrease in the electrical performance and insulation resistance of the battery, and eventually cause the battery to fail. By properly adjusting the composition of the electrolyte and additives, battery life can be extended. At present, it is generally believed that an electrolyte solu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/26
CPCY02E60/124Y02E60/10
Inventor 姜波
Owner SHANGHAI JINZHONG INFORMATION TECH
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