CN103219547B - Novel electrolyte for storage battery - Google Patents

Abstract

The invention relates to an electrolyte for storage battery,which is made of bisulfate, EDTA (Ethylene Diamine Tetraacetic Acid), anhydrous sodium sulfate, antiager, vanillin, a tensio-active agent, stannous mono-sulphate, deionized water. The novel electrolyte can be used for enhancing the charge acceptance of the storage battery, ensuring that the internal formation of the storage battery can be performed more easily, and solving the problem of great water pollution caused by the tank formation of lead-acid storage battery.The electrolyte provided by the invention has the advantages of reasonable formula, simple process, stable quality, low cost and obvious effect on improving the performances of lead storage batteries.

Description

A kind of secondary cell electrolyte

Technical field

The present invention relates to a kind of battery liquid, particularly relate to a kind of secondary cell electrolyte.

Background technology

The energy is the power of the national economic development, is also the important indicator of measurement national overall national strength, development of civilization degree and living standards of the people.The history identity of progress of human society, the development of productivity and the progress of society, energy technology plays powerful impetus.Storage battery occupies critical positions hereinto as the secondary power energy and active force is larger along with the development of economic and science and technology and social life.

Lead acid accumulator is that applicating history is the longest, technology is the most ripe, the cheapest storage battery of cost, and since invention, with the stability of its performance and fail safe in occupation of irreplaceable status, be still the main flow of secondary cell so far, range of application is very extensive.But Specific Energy of Lead Acid Storage Batteries is low, cycle life is short, charge efficiency is lower, run counter to the energy requirements that future society is efficient, clean, economic, safe.The reaction mechanism of the present invention in conjunction with lead acid accumulator and the production technology of lead acid accumulator, obtain best electrolyte prescription by theoretical research and bulk trial.The product that the present invention does has obvious improvement than traditional plumbous class battery performance, and technique is simple, and economic benefit is obvious.

Summary of the invention

Object of the present invention overcomes the deficiency of above-mentioned technology, provide that a kind of production. art is simple, stable performance, secondary cell that reliability is high electrolyte, improve the performance of lead accumulator.

The present invention solves the problems of the technologies described above by the following technical solutions:

A kind of secondary cell electrolyte, its weight proportion is: bisulfate is 35.0-50.0%, EDTA is 0.2-0.5%, anhydrous sodium sulfate is 0.6-1.0%, age resister is 0.3-0.5%, and vanillic aldehyde is 1.0-1.5%, and surfactant is 0.1-0.4%, stannous sulfate is 0.01-0.1%, and all the other are deionized water.

The production technology of electrolyte of the present invention is as follows:

1) bisulfate taking aforementioned proportion weight adds in reactor;

2) add the deionized water of aforementioned proportion amount, be heated to 50 ± 5 degrees Celsius, be stirred to solid and dissolve completely;

3) add the EDTA of aforementioned proportion amount, anhydrous sodium sulfate, age resister, vanillic aldehyde, surfactant, stannous sulfate, stirring and dissolving is complete;

4) solution is positioned over room temperature.

Described electrolyte be applied to pole plate operation simultaneously with cream and assembling after the liquid feeding of battery, for traditional sulfuric acid electrolyte.

The technology of the present invention preferred weight proportioning is:

Bisulfate is 44%, EDTA is 0.3%, and anhydrous sodium sulfate is 0.8%, and age resister is 0.35%, and vanillic aldehyde is 1.2%, and surfactant is 0.2%, and stannous sulfate is 0.02%, and all the other are deionized water.

Beneficial effect of the present invention is: the charge acceptance that improve storage battery, makes being internalized into of storage battery be more prone to carry out, solves the problem that lead acid accumulator tank formation pole plate causes a large amount of water pollutions; This electrolyte prescription is reasonable, technique is simple, steady quality, with low cost, the performance of plumbous class storage battery is improved and has positive effect; Use the storage battery of this electrolyte manufacture to meet or exceed national standard in capacity, cold-starting ability, charge acceptance, retention of charge, cyclic endurance, vibration resistance ability, damage by water consumption etc. comprehensively; Electrolyte is replacing traditional sulfuric acid electrolyte with during cream operation, make whole with during cream reaction be in the relative weak environment of acidity, the ratio producing four basic lead sulphates in active cream increases, thus active material α-PbO2 content increases, and effectively extends the useful life of storage battery.

Embodiment

According to weight proportion: bisulfate is 35.0-50.0%, EDTA is 0.2-0.5%, and anhydrous sodium sulfate is 0.6-1.0%, age resister is 0.3-0.5%, and vanillic aldehyde is 1.0-1.5%, and surfactant is 0.1-0.4%, stannous sulfate is 0.01-0.1%, and all the other are deionized water.

Concrete operations are as follows:

1) bisulfate taking aforementioned proportion weight adds in reactor;

2) add the deionized water of aforementioned proportion amount, be heated to 50 ± 5 degrees Celsius, be stirred to solid and dissolve completely;

3) add the EDTA of aforementioned proportion amount, anhydrous sodium sulfate, age resister, vanillic aldehyde, surfactant, stannous sulfate, stirring and dissolving is complete;

4) solution is positioned over room temperature.

Get a part of electrolyte and make required lotion.Electrolyte with cream plate coating process in easily increase the dehydration of lotion, thus cause pole plate crackle in solidification process, should try one's best quick when being therefore coated with cream, curing room should heat up humidification in advance.The plate coated enters curing room as early as possible.

Example 1:

Use electrolyte of the present invention according to weight proportion ratio and the lotion making needs, be then coated onto and grid carry out high temperature and heavy wet solidification and make pole plate required for 12V12Ah electric bicycle.Then 7 positive 8 be negatively assembled into resultant battery, add electrolyte 120ml of the present invention and shelve 2h and change into as follows: 1.5A fills 2h 3A fills 36h 1.5A fills 8h 2A puts 3h 1.5A fills 3h 2A puts 3h 2.5A fills 6h 1.5A fills 8h.

Change into after terminating and the results are shown in following table by 5A constant-current discharge detection battery capacity:

Battery is numbered	1	2	3
				Discharging current	5A	5A	5A
Final voltage	10.8V	10.8V	10.8V
				Discharge time	155	153	156

Measured result shows, the container formation result adding electrolyte of the present invention is good, and average discharge times improves 7-8min than common lead acid accumulator.And battery capacity consistency is good, successfully solves common lead acid accumulator and be internalized into time length, change into the defect saturating, homogeneity is poor.

Example 2:

Make the positive/negative plate of monolithic 13Ah with electrolyte of the present invention and cream, be negatively assembled into 12V65AH battery with 5 positive 6, add electrolyte 700ml of the present invention and change into.Detect Sample Cell according to lead acid accumulator GB and correlated sampling and test stone after changing into end, testing result is as follows:

Sequence number	Project	1	2	3
					1	Open circuit voltage	13.13V	13.15V	13.15V
2	10h leads capacity	72Ah	72 Ah	71 Ah
					3	3h leads capacity	55Ah	54 Ah	54 Ah
4	1h leads capacity	44Ah	44Ah	43.5Ah
					5	Sealing reaction efficiency	100%	100%	100%

Testing result and submitted sample result show, meet national standard completely by the little close and various performance of fixed battery that electrolyte of the present invention does, some index has surmounted common valve control sealed lead acid battery greatly.And the battery of each sampling observation is all carry out according to the sample sampling standard of science, the representative and generality of result of the test.Shown by multi items and batch experiment result, the resultant battery stable performance that electrolyte of the present invention is produced, production technology reasonable.

Claims (1)

1. a secondary cell electrolyte, it is characterized in that: its weight proportion is: bisulfate is 35.0-50.0%, EDTA is 0.2-0.5%, anhydrous sodium sulfate is 0.6-1.0%, age resister is 0.3-0.5%, and vanillic aldehyde is 1.0-1.5%, and surfactant is 0.1-0.4%, stannous sulfate is 0.01-0.1%, and all the other are deionized water;

The production technology of electrolyte is as follows:

1) bisulfate taking aforementioned proportion weight adds in reactor;

2) add the deionized water of aforementioned proportion amount, be heated to 50 ± 5 degrees Celsius, be stirred to solid and dissolve completely;

3) add the EDTA of aforementioned proportion amount, anhydrous sodium sulfate, age resister, vanillic aldehyde, surfactant, stannous sulfate, stirring and dissolving is complete;

4) solution is positioned over room temperature.