Colloidal electrolyte and preparation method thereof

A technology of colloidal electrolyte and weight, applied in the field of electrolyte, can solve the problems of ineffective reduction of electrolyte, low over-discharge resistance, and aggravated electrolyte internal resistance, etc., to achieve the effect of improving charge acceptance, capacity increase, and effective use rate

Inactive Publication Date: 2010-11-03
长兴诺力电源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For example, a high-conductivity sodium salt electrolyte disclosed in Chinese Patent No. 200710090477.3 is made of the following components by weight: sodium silicate and/or sodium fluorosilicate, 1.95~2.20% by weight; cobalt sulfate And/or zinc sulfate, 0.0012~0.0062‰ by weight; sodium phosphate and/or slightly calcium acid, 0.0051~0.014‰ by weight; density 1.260~1.400g/cm 3 dilute sulfuric acid, 90.80~91.30% by weight; inhibitor, 0.0035~0.024‰ weight; hydrogen inhibitor, 0.0015~0.0085‰ weight; deionized water, balance; cobalt sulfate in the preparation material of this kind of high conductivity sodium salt electrolyte And/or the weight part of zinc sulfate is too little, cause the internal resistance of this kind of electrolyte is still high; And its weight part of sodium silicate and/or sodium fluorosilicate is too much, further exacerbates the internal resistance of this ele

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Embodiment 1: A preparation method of colloidal electrolyte, which includes the following steps:

[0035] (1) Put a small amount of sodium hydroxide into 456.5 grams of ionized water to prepare weakly alkaline water with a pH of 7.5;

[0036] (2) Place 19.3 grams of silica in one of the above-mentioned weakly alkaline waters, and stir for 5 minutes with a high-speed disperser to form component A;

[0037] (3) Dissolve 3.2 grams of cobalt sulfate, 32.1 grams of sodium sulfate, and 3.2 grams of stannous sulfate in 5915.7 grams, with a density of 1.330 g / cm 3 In the dilute sulfuric acid, component B is formed;

[0038] (4) Mix components A and B, put them in a low-speed disperser for 5 minutes, and stir evenly.

[0039] The weight of each component is: silica, 0.3% by weight; cobalt sulfate, 0.05% by weight; sodium sulfate, 0.5% by weight; stannous sulfate, 0.05% by weight; density is 1.330g / cm 3 Dilute sulfuric acid, 92% by weight; weakly alkaline water with PH value of 7.5, th...

Example Embodiment

[0043] Embodiment 2: A preparation method of a colloidal electrolyte includes the following steps:

[0044] (1) Put a small amount of sodium hydroxide into 144 grams of ionized water to prepare weakly alkaline water with a pH of 8;

[0045] (2) Put 64.3 grams of silica in the above weakly alkaline water and stir for 15 minutes with a high-speed disperser to form component A;

[0046] (3) Dissolve 16.1 grams of cobalt sulfate, 64.3 grams of sodium sulfate, and 32.2 grams of stannous sulfate in 6108.5 grams. The density is 1.400g / cm 3 In the dilute sulfuric acid, component B is formed;

[0047] (4) Mix components A and B, put them in a low-speed disperser for 15 minutes, and stir evenly.

[0048] The weight of each component is: silicon dioxide, 1.0% by weight; cobalt sulfate, 0.25% by weight; sodium sulfate, 1.0% by weight; stannous sulfate, 0.5% by weight; density is 1.400g / cm 3 Dilute sulfuric acid, 95% by weight; weakly alkaline water with PH 8, the balance.

[0049] The stirring s...

Example Embodiment

[0052] Embodiment 3: A preparation method of a colloidal electrolyte includes the following steps:

[0053] (1) Put a small amount of sodium hydroxide into 312 grams of ionized water to prepare weakly alkaline water with a pH of 9;

[0054] (2) Put 51.4 grams of silica in one of the above-mentioned weakly alkaline waters and stir with a high-speed disperser for 10 minutes to form component A;

[0055] (3) Dissolve 12.9 grams of cobalt sulfate, 51.4 grams of sodium sulfate, and 22.5 grams of stannous sulfate in 5979.9 grams with a density of 1.345 g / cm 3 In the dilute sulfuric acid, component B is formed;

[0056] (4) Mix components A and B, put them in a low-speed disperser for 10 minutes, and stir evenly.

[0057] The weight of each component is: silicon dioxide, 0.8% by weight; cobalt sulfate, 0.2% by weight; sodium sulfate, 0.8% by weight; stannous sulfate, 0.35% by weight; density is 1.345g / cm 3 Dilute sulfuric acid, 93% by weight; weakly alkaline water with PH value of 9, the b...

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Abstract

The invention relates to an electrolyte for a lead-acid accumulator, in particular to a colloidal electrolyte and a preparation method thereof. The invention adopts the following technical scheme that the colloidal electrolyte is prepared from the following components in percentage by weight: 0.3 to 1.0 percent of silicon dioxide, 0.05 to 0.25 percent of cobaltous sulphate, 0.5 to 1.0 percent of sodium sulphide, 0.05 to 0.5 percent of stannous sulfate, 92 to 95 percent of dilute sulphuric acid of which the density is 1.330 to 1.400g/cm<3> and the balance of water of which the pH value is 7 to 9.

Description

technical field [0001] The invention relates to an electrolyte used in a lead-acid storage battery, in particular to a colloidal electrolyte used in a lead-acid storage battery. Background technique [0002] At present, the common batteries used in the prior art are still mainly lead-acid batteries. The electrolyte of lead-acid batteries is prepared from dilute sulfuric acid and deionized water. The preparation method is relatively simple and the cost is low. Therefore, this battery Still widely used in all walks of life. [0003] For example, a high-conductivity sodium salt electrolyte disclosed in Chinese Patent No. 200710090477.3 is made of the following components by weight: sodium silicate and / or sodium fluorosilicate, 1.95~2.20% by weight; cobalt sulfate And / or zinc sulfate, 0.0012~0.0062‰ by weight; sodium phosphate and / or slightly calcium acid, 0.0051~0.014‰ by weight; density 1.260~1.400g / cm 3 dilute sulfuric acid, 90.80~91.30% by weight; inhibitor, 0.0035~0.024...

Claims

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Application Information

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IPC IPC(8): H01M10/10
CPCY02E60/126Y02E60/10
Inventor 杨新明庄建郑文明张国东
Owner 长兴诺力电源有限公司
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