CN102569883B - Method for preparing electrolyte of colloid storage battery capable of carrying out deep high-power discharging - Google Patents
Method for preparing electrolyte of colloid storage battery capable of carrying out deep high-power discharging Download PDFInfo
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- CN102569883B CN102569883B CN201210032608.3A CN201210032608A CN102569883B CN 102569883 B CN102569883 B CN 102569883B CN 201210032608 A CN201210032608 A CN 201210032608A CN 102569883 B CN102569883 B CN 102569883B
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- storage battery
- electrolyte
- deionized water
- colloid storage
- sulfate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a method for preparing electrolyte of a colloid storage battery capable of carrying out deep high-power discharging, belongs to the technical field of the battery industry and particularly relates to the technical field of production of the storage battery. The method comprises the following steps of: mixing cerous sulfate or europium sulfate and deionized water to prepare a composite additive; then dropwise adding the composite additive into silicon dioxide hydrosol; and finally, under a stirring condition, adding aqueous solution of sulfuric acid, which has the specific gravity of 1.38, to form the electrolyte of the colloid storage battery. When being charged for 4 hours, the high-capacity lead-acid storage battery assembled by using the electrolyte can discharge for 110 to 150 minutes. The electrolyte of the colloid storage battery can be widely applied to a power plant, a switching control system of a substation, an uninterruptible power supply, solar and wind energy storage power supplies and the like.
Description
Technical field
The invention belongs to battery industry technical field, particularly storage battery production technical field.
Background technology
Storage battery self-application a century and a half nearly so far, with low price, raw material be easy to get, easy to use, dependable performance, advantages of simple structure and simple, become application very extensively, the maximum storage battery of consumption figure, in secondary battery industry in occupation of main status.In order further to improve the flash-over characteristic of storage battery, improve high-multiplying power discharge capacity, someone preparation method of colloidal electrolyte that begins one's study, and in colloidal electrolyte, add the methods such as additive to improve the performance of storage battery.In colloidal electrolyte, add additive, have do not change battery industry production process, fringe cost low, effective, be convenient to the advantages such as popularization, all actively develop at present additive agent electrolyte miscellaneous both at home and abroad, selecting suitable additive agent electrolyte is the main path that improves colloid battery performance.More the having of research additive agent electrolyte at present: gel additives, alkalies and alkaline earth sulfate, phosphoric acid and NH
4 +, organic polymer and complex etc., have related researcher by add rare earth sulfate in electrolyte sulfuric acid solution, can be by traditional lead alloy by adding rare earth ion to improve the performance of lead accumulator in sulfuric acid solution.
But in colloidal electrolyte, study using rare earth as additive agent electrolyte seldom, especially study its mechanism of action just still less.Because the rare earth resources of China is very abundant, exploration rare earth is applied in colloidal electrolyte has application prospect more widely.
Summary of the invention
The object of the invention be to propose a kind of accumulation of energy is large, discharge time is long can degree of depth high power discharge the preparation method of colloid storage battery electrolyte.
Technical solution of the present invention is: cerous sulfate or europium sulfate are mixed with deionized water, be made into compound additive, then compound additive is added drop-wise in silica hydrosol, finally, under stirring, then to add proportion be 1.38 aqueous sulfuric acid, forms colloid storage battery electrolyte.
Because rare earth element has special catalytic performance, the situation of separating out of gas can improve charge in batteries time, improves active material utilization and charge efficiency, thereby plays the effect that increases battery capacity.The inventive method rare earth consumption is few, and preparation technology is simple, and production cost is low, is the effective ways with the rare earth modified battery liquid performance of essential industry application prospect.Use the high-capacity lead-acid storage battery that this electrolyte is assembled into charge 4 hours, can discharge 110～150 minutes, can be widely used in on-off control system, uninterrupted power supply and solar energy and the wind energy accumulation power supply etc. of power plant, transformer station.
Advantage of the present invention be embodied in following some:
1, rare earth its there is special catalytic performance, can improve the utilance of active material, thereby increase the effect of battery capacity.
2, the technology of the present invention highly versatile, applicable to the optimization composition and ratio that obtains cell electrolyte and additive.Use high-capacity lead-acid storage battery that this electrolyte is assembled into can be widely used in on-off control system, uninterrupted power supply and solar energy and the wind energy accumulation power supply of power plant, transformer station.
3, superpower deep discharge and the large current discharging capability of bearing, has and overcharges and overdischarge self-protection performance.The anti-deep discharge ability of battery is strong, after 100% electric discharge, still can continue to be connected in load, and charging can recover former capacity within a certain period of time.
4, sulfuric acid plays a part delivered charge on the one hand, and it is again active reaction thing on the other hand.In electrolyte sulfuric acid content and concentration number affect to a certain extent capacity and the life-span of storage battery, in the time of preparation colloidal electrolyte, often sulfuric acid density is transferred to 1.38g/cm
3.
In compound additive of the present invention, the mass percent that cerous sulfate or europium sulfate account for compound additive is 0.002%～0.02%.Can improve the utilance of active material, thereby increase the effect of battery capacity.Suppress the loss of the early stage capacity of battery, improve the cycle life of battery.
Silica hydrosol of the present invention is mixed and is formed by aerosil and deionized water, and the volume ratio that feeds intake of described aerosil and deionized water is 1 ︰ 90.Can ensure SiO
2content is 0.3% time, and the discharge effect of colloid liquid electrolyte is best.
Embodiment
Example 1:
It is 1.38 aqueous sulfuric acid that 98% concentrated sulfuric acid solution is diluted to proportion with deionized water.
Measure 0.1ml aerosil in 50ml small beaker, being dissolved in 9ml deionized water solution (carries out ultrasonic) if desired, solution in small beaker is joined in the aqueous sulfuric acid that 18 ml proportions are 1.38, form solution, in the colloid liquid electrolyte of 90 mg dioxide-containing silicas 0.3%, add 6 mg cerous sulfates, the cerous sulfate adding accounts for 0.02% of gross weight, through being thoroughly mixed to form battery liquid.
Use the high-capacity lead-acid storage battery that this electrolyte is assembled into charge 4 hours, can discharge 110 minutes.
Example 2:
It is 1.38 aqueous sulfuric acid that 98% concentrated sulfuric acid solution is diluted to proportion with deionized water.
Measure 0.1 ml aerosil in 50ml small beaker, being dissolved in 9ml deionized water solution (carries out ultrasonic) if desired, it is in 1.38 aqueous sulfuric acid that solution in small beaker is joined to 18ml proportion, form solution, in the colloid liquid electrolyte of 90 mg dioxide-containing silicas 0.3%, add 0.6mg cerous sulfate, the cerous sulfate adding accounts for 0.002% of gross weight, through being thoroughly mixed to form battery liquid.
Use the high-capacity lead-acid storage battery that this electrolyte is assembled into charge 4 hours, can discharge 115 minutes.
Example 3:
It is 1.38 aqueous sulfuric acid that 98% concentrated sulfuric acid solution is diluted to proportion with deionized water.
Measure 0.1ml aerosil in 50ml small beaker, being dissolved in 9ml deionized water solution (carries out ultrasonic) if desired, it is in 1.38 aqueous sulfuric acid that solution in small beaker is joined to 18ml proportion, form solution, in the colloid liquid electrolyte of 90mg dioxide-containing silica 0.3%, add 6mg europium sulfate, the europium sulfate adding accounts for 0.02% of gross weight, through being thoroughly mixed to form battery liquid.
Use the high-capacity lead-acid storage battery that this electrolyte is assembled into charge 4 hours, can discharge 140 minutes.
Example 4:
It is 1.38 aqueous sulfuric acid that 98% concentrated sulfuric acid solution is diluted to proportion with deionized water.
Measure 0.1 ml aerosil in 50ml small beaker, being dissolved in 9ml deionized water solution (carries out ultrasonic) if desired, solution in small beaker is joined in the aqueous sulfuric acid that proportion that 18 ml are configured to is 1.38, form solution, in the colloid liquid electrolyte of 90mg dioxide-containing silica 0.3%, add 0.6mg europium sulfate, the europium sulfate adding accounts for 0.002% of gross weight, through being thoroughly mixed to form battery liquid.
Use the high-capacity lead-acid storage battery that this electrolyte is assembled into charge 4 hours, can discharge 150 minutes.
Claims (1)
1. the preparation method of colloid storage battery electrolyte that can degree of depth high power discharge, it is characterized in that cerous sulfate or europium sulfate to mix with deionized water, be made into compound additive, then compound additive is added drop-wise in silica hydrosol, finally, under stirring, then to add proportion be 1.38 aqueous sulfuric acid, forms colloid storage battery electrolyte; In described compound additive, the mass percent that cerous sulfate or europium sulfate account for compound additive is 0.002～0.02%; Described silica hydrosol is mixed and is formed by aerosil and deionized water, and the volume ratio that feeds intake of described aerosil and deionized water is 1 ︰ 90.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210032608.3A CN102569883B (en) | 2012-02-15 | 2012-02-15 | Method for preparing electrolyte of colloid storage battery capable of carrying out deep high-power discharging |
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| CN201210032608.3A CN102569883B (en) | 2012-02-15 | 2012-02-15 | Method for preparing electrolyte of colloid storage battery capable of carrying out deep high-power discharging |
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| CN102569883A CN102569883A (en) | 2012-07-11 |
| CN102569883B true CN102569883B (en) | 2014-12-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104681880A (en) * | 2013-12-03 | 2015-06-03 | 北京科技大学 | Additive for electrolyte of lead-acid storage battery |
| CN104511266B (en) * | 2014-12-17 | 2016-08-17 | 安徽超威电源有限公司 | A kind of colloid electrolyte for lead-acid battery ultrasonic machining device |
| CN105680102B (en) * | 2016-01-13 | 2019-01-11 | 超威电源有限公司 | A kind of lead-acid accumulator graphene electrolyte and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532983A (en) * | 2003-03-24 | 2004-09-29 | 谯凤华 | Rare-earth containing collidal electrolyte solution for accumulator and its preparing method |
| CN102231443A (en) * | 2011-05-17 | 2011-11-02 | 汪训国 | Colloidal electrolyte used in power lead-acid battery, and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532983A (en) * | 2003-03-24 | 2004-09-29 | 谯凤华 | Rare-earth containing collidal electrolyte solution for accumulator and its preparing method |
| CN102231443A (en) * | 2011-05-17 | 2011-11-02 | 汪训国 | Colloidal electrolyte used in power lead-acid battery, and preparation method thereof |
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Effective date of registration: 20190116 Address after: 3 Floors of Building 10, Yangzhou Information Service Industry Base, Jiangsu Province, 225000 Patentee after: Yangzhou Hongxi Electric Co., Ltd. Address before: No. 88, South Road, University of Yangzhou, Jiangsu, Jiangsu Patentee before: Yangzhou University |
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Granted publication date: 20141210 Termination date: 20200215 |