CN103441308A - Electrolyte of lead-acid storage battery, method for preparing electrolyte, and lead-acid storage battery - Google Patents
Electrolyte of lead-acid storage battery, method for preparing electrolyte, and lead-acid storage battery Download PDFInfo
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- CN103441308A CN103441308A CN2013103913248A CN201310391324A CN103441308A CN 103441308 A CN103441308 A CN 103441308A CN 2013103913248 A CN2013103913248 A CN 2013103913248A CN 201310391324 A CN201310391324 A CN 201310391324A CN 103441308 A CN103441308 A CN 103441308A
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- lead
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- acid accumulator
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- storage battery
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses an electrolyte of a lead-acid storage battery, a method for preparing the electrolyte, and the lead-acid storage battery. The electrolyte of the lead-acid storage battery comprises sulfuric acid, nano-fumed silica, potassium sulfate, zinc sulfate, ammonium sulfate, magnesium sulfate, aluminum sulfate, sodium sulfate, nickel sulfate, cobalt sulfate, lead sulfate, lithium iodide, hydroxymethyl cellulose, polyvinyl alcohol, polyglycol ether, sodium ethylene diamine tetracetate and deionized water. The defects in the prior art can be overcome, the using frequency of the lead-acid storage battery can be remarkably improved, and the popularization and use are easy.
Description
Technical field
The present invention relates to the Lead-acid Battery Technology field, especially a kind of lead-acid accumulator electrolyte and preparation method thereof and lead acid accumulator.
Background technology
Lead acid accumulator, since 1958 are invented, has had the history of more than 100 year so far.That lead acid accumulator has is simple in structure, dependable performance, easy to use, raw material is easy to get and the advantage such as low price, be widely used in the various fields in the national economy such as communications and transportation, communication and national defence, become indispensable energy products in social production and human lives.
Five large parts of lead acid accumulator are positive pole, negative pole, barrier film, electrolyte and battery case, and wherein electrolyte is one of principal element affected battery performance.Common electrolyte internal resistance is large, Gu sour ability, useful life are short.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of lead-acid accumulator electrolyte and preparation method thereof and lead acid accumulator, can significantly improve the access times of lead acid accumulator, is easy to promote the use of.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
A kind of lead-acid accumulator electrolyte, comprise
The sulfuric acid of 48wt%～50wt%,
The nano fumed silica of 0.3wt%～0.5wt%,
The potassium sulfate of 0.1wt%～0.3wt%,
The zinc sulfate of 0.1wt%～0.3wt%,
The ammonium sulfate of 0.07wt%～0.2wt%,
The magnesium sulfate of 0.2wt%～0.5wt%,
The aluminum sulfate of 0.4wt%～0.7wt%,
The sodium sulphate of 0.5wt%～1.0wt%,
The nickelous sulfate of 0.1wt%～0.2wt%,
The cobaltous sulfate of 0.02wt%～0.08wt%,
The lead sulfate of 0.3wt%～0.5wt%,
The lithium iodide of 0.05wt%～0.2wt%,
The CMC of 0.2wt%～0.4wt%,
The polyvinyl alcohol of 0.3wt%～0.5wt%,
The polyglycol ether of 0.4wt%～0.6wt%,
The sodium ethylene diamine tetracetate of 0.3wt%～0.7wt%,
Surplus is deionized water.
A kind of preparation method of lead-acid accumulator electrolyte comprises the following steps:
A, the sulfuric acid of 48wt%～50wt% is slowly poured in deionized water, and at the uniform velocity stirred with the speed of 5～10r/min, heat is volatilized fast, the temperature of sulfuric acid solution is down to<50 ℃;
B, to the potassium sulfate of putting into 0.1wt%～0.3wt% in the sulfuric acid solution prepared in above-mentioned steps A, the zinc sulfate of 0.1wt%～0.3wt%, the ammonium sulfate of 0.07wt%～0.2wt%, the magnesium sulfate of 0.2wt%～0.5wt%, the aluminum sulfate of 0.4wt%～0.7wt%, the sodium sulphate of 0.5wt%～1.0wt%, the nickelous sulfate of 0.1wt%～0.2wt%, the cobaltous sulfate of 0.02wt%～0.08wt%, the lead sulfate of 0.3wt%～0.5wt%, the lithium iodide of 0.05wt%～0.2wt%, stir, and the temperature of mixed solution is down to<40 ℃;
C, to the CMC that adds 0.2wt%～0.4wt% in the mixed solution prepared in above-mentioned steps B, the polyvinyl alcohol of 0.3wt%～0.5wt%, the polyglycol ether of 0.4wt%～0.6wt%, the sodium ethylene diamine tetracetate of 0.3wt%～0.7wt%, stir, the temperature of mixed solution is down to<30 ℃;
D, to the nano fumed silica that adds 0.3wt%～0.5wt% in the mixed solution prepared in above-mentioned steps C, stir, make the temperature of mixed solution be down to room temperature, obtain lead-acid accumulator electrolyte.
As a kind of optimal technical scheme of this preparation method, deionization resistivity of water >=18M Ω.
As a kind of optimal technical scheme of this preparation method, the purity of sulfuric acid is for analyzing pure rank.
As a kind of optimal technical scheme of this preparation method, the particle diameter of nano fumed silica is 50nm～80nm, specific area>200 ㎡/g.
A kind of lead acid accumulator, the lead-acid accumulator electrolyte that comprises above-mentioned lead-acid accumulator electrolyte or prepare according to the preparation method of above-mentioned lead-acid accumulator electrolyte.
The beneficial effect that adopts technique scheme to bring is: the present invention adopts hydroxyethylcellulose to form colloidal electrolyte of lead acid accumulator, described hydroxyethylcellulose is a kind of nonionic surface active agent, it has stronger water holding capacity and good flow adjustment, can effectively reduce the loss of electrolyte moisture in the battery use procedure, thereby improve the cycle life of lead acid accumulator.The present invention controls the content of described hydroxyethylcellulose for 0.2wt%～0.4wt%, can improve preferably the performance of electrolyte.Experiment shows, colloidal electrolyte of lead acid accumulator provided by the invention is at least the cycle life of lead acid accumulator 560 times, and lead acid accumulator has cycle life preferably.In addition, described hydroxyethylcellulose has good thickening, bonding, emulsification and peptizaiton; Described hydroxyethylcellulose dissolves in hot water or cold water, at high temperature or while boiling, do not precipitate, having large-scale dissolubility, viscosity characteristics and non-thermal gelation, can coexist with multiple waterborne polymeric, surfactant and salt, is a kind of good colloid thickener containing high concentration electrolysis matter solution; And it has the effect of protecting colloid preferably, make the present invention adopt a small amount of silicon dioxide can obtain stable colloidal electrolyte, not only be beneficial to the application of colloidal electrolyte, and can save production cost.Moreover preparation method's technique of colloidal electrolyte of lead acid accumulator provided by the invention is simple, cost is lower, is suitable for suitability for industrialized production.
Ammonium sulfate, magnesium sulfate and sodium ethylene diamine tetracetate form deoxidier jointly, in the use procedure of lead acid accumulator, the reasons such as the dehydration that the impacts such as pole plate is put owing to overcharging, crossing, temperature cause or sulfuration, can form the acidifying phenomenon, cause lead oxide to come off, pole plate is loose, poor activity, the deoxidation of this deoxidier is to assist the lead sulfate particle to decompose fast and reduction.Can supplement the moisture in electrolyte, solve the problem of dehydration, the PH value is adjusted to optimum state simultaneously.
Nanometer grade silica has good thixotropy, mobility and thickening property.
Polyvinyl alcohol can with metal ion-chelant, increase active material utilization.Polyglycol ether can improve the dispersiveness of nanometer grade silica in electrolyte, makes electrolyte more stable, alleviates well the vibrations that battery is subject to.
Nickelous sulfate, cobaltous sulfate and lithium iodide, as stabilizer, have reduced the self-discharge rate of storage battery; Reduced the dehydration of storage battery; High temperature, cryogenic property improve; Ability to accept with anti-charging, saturated charging, improve charge acceptance; Improved the service life cycle of storage battery.
Embodiment
A kind of lead-acid accumulator electrolyte, comprise
The sulfuric acid of 49.75wt%,
The nano fumed silica of 0.46wt%,
The potassium sulfate of 0.13wt%,
The zinc sulfate of 0.20wt%,
The ammonium sulfate of 0.10wt%,
The magnesium sulfate of 0.45wt%,
The aluminum sulfate of 0.58wt%,
The sodium sulphate of 0.85wt%,
The nickelous sulfate of 0.15wt%,
The cobaltous sulfate of 0.05wt%,
The lead sulfate of 0.48wt%,
The lithium iodide of 0.11wt%,
The CMC of 0.26wt%,
The polyvinyl alcohol of 0.41wt%,
The polyglycol ether of 0.53wt%,
The sodium ethylene diamine tetracetate of 0.35wt%,
Surplus is deionized water.
A kind of preparation method of lead-acid accumulator electrolyte is characterized in that comprising the following steps:
A, the sulfuric acid of 49.75wt% is slowly poured in deionized water, and at the uniform velocity stirred with the speed of 5～10r/min, heat is volatilized fast, the temperature of sulfuric acid solution is down to<50 ℃;
B, to the potassium sulfate of putting into 0.13wt% in the sulfuric acid solution prepared in above-mentioned steps A, the zinc sulfate of 0.20wt%, the ammonium sulfate of 0.10wt%, the magnesium sulfate of 0.45wt%, the aluminum sulfate of 0.58wt%, the sodium sulphate of 0.85wt%, the nickelous sulfate of 0.15wt%, the cobaltous sulfate of 0.05wt%, the lead sulfate of 0.48wt%, the lithium iodide of 0.11wt%, stir, and the temperature of mixed solution is down to<40 ℃;
C, to the CMC that adds 0.26wt% in the mixed solution prepared in above-mentioned steps B, the polyvinyl alcohol of 0.41wt%, the polyglycol ether of 0.53wt%, the sodium ethylene diamine tetracetate of 0.35wt%, stir, and the temperature of mixed solution is down to<30 ℃;
D, to the nano fumed silica that adds 0.46wt% in the mixed solution prepared in above-mentioned steps C, stir, make the temperature of mixed solution be down to room temperature, obtain lead-acid accumulator electrolyte.
It should be noted that deionization resistivity of water >=18M Ω.
It should be noted that the purity of sulfuric acid is for analyzing pure rank.
In addition, the particle diameter of nano fumed silica is 50nm～80nm, specific area>200 ㎡/g.
The present embodiment also provides a kind of lead acid accumulator, the lead-acid accumulator electrolyte that comprises above-mentioned lead-acid accumulator electrolyte or prepare according to the preparation method of above-mentioned lead-acid accumulator electrolyte.After obtaining lead-acid accumulator electrolyte, utilize acid filling machine to be injected in battery, obtain lead acid accumulator.
According to CNS GB/T 22473-2008 " energy storage lead acid accumulator ", it is tested.Test result shows, the gained lead acid accumulator has good charging and discharging capabilities, and its cycle life is more than 560 times.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a lead-acid accumulator electrolyte, is characterized in that: comprise
The sulfuric acid of 48wt%～50wt%,
The nano fumed silica of 0.3wt%～0.5wt%,
The potassium sulfate of 0.1wt%～0.3wt%,
The zinc sulfate of 0.1wt%～0.3wt%,
The ammonium sulfate of 0.07wt%～0.2wt%,
The magnesium sulfate of 0.2wt%～0.5wt%,
The aluminum sulfate of 0.4wt%～0.7wt%,
The sodium sulphate of 0.5wt%～1.0wt%,
The nickelous sulfate of 0.1wt%～0.2wt%,
The cobaltous sulfate of 0.02wt%～0.08wt%,
The lead sulfate of 0.3wt%～0.5wt%,
The lithium iodide of 0.05wt%～0.2wt%,
The CMC of 0.2wt%～0.4wt%,
The polyvinyl alcohol of 0.3wt%～0.5wt%,
The polyglycol ether of 0.4wt%～0.6wt%,
The sodium ethylene diamine tetracetate of 0.3wt%～0.7wt%,
Surplus is deionized water.
2. the preparation method of a lead-acid accumulator electrolyte is characterized in that comprising the following steps:
A, the sulfuric acid of 48wt%～50wt% is slowly poured in deionized water, and at the uniform velocity stirred with the speed of 5～10r/min, heat is volatilized fast, the temperature of sulfuric acid solution is down to<50 ℃;
B, to the potassium sulfate of putting into 0.1wt%～0.3wt% in the sulfuric acid solution prepared in above-mentioned steps A, the zinc sulfate of 0.1wt%～0.3wt%, the ammonium sulfate of 0.07wt%～0.2wt%, the magnesium sulfate of 0.2wt%～0.5wt%, the aluminum sulfate of 0.4wt%～0.7wt%, the sodium sulphate of 0.5wt%～1.0wt%, the nickelous sulfate of 0.1wt%～0.2wt%, the cobaltous sulfate of 0.02wt%～0.08wt%, the lead sulfate of 0.3wt%～0.5wt%, the lithium iodide of 0.05wt%～0.2wt%, stir, and the temperature of mixed solution is down to<40 ℃;
C, to the CMC that adds 0.2wt%～0.4wt% in the mixed solution prepared in above-mentioned steps B, the polyvinyl alcohol of 0.3wt%～0.5wt%, the polyglycol ether of 0.4wt%～0.6wt%, the sodium ethylene diamine tetracetate of 0.3wt%～0.7wt%, stir, the temperature of mixed solution is down to<30 ℃;
D, to the nano fumed silica that adds 0.3wt%～0.5wt% in the mixed solution prepared in above-mentioned steps C, stir, make the temperature of mixed solution be down to room temperature, obtain lead-acid accumulator electrolyte.
3. the preparation method of lead-acid accumulator electrolyte according to claim 2 is characterized in that: in steps A, and deionization resistivity of water >=18M Ω.
4. the preparation method of lead-acid accumulator electrolyte according to claim 2 is characterized in that: in steps A, the purity of sulfuric acid is for analyzing pure rank.
5. the preparation method of lead-acid accumulator electrolyte according to claim 2, it is characterized in that: in step D, the particle diameter of nano fumed silica is 50nm～80nm, specific area>200 ㎡/g.
6. a lead acid accumulator is characterized in that: the lead-acid accumulator electrolyte that comprises lead-acid accumulator electrolyte claimed in claim 1 or prepare according to the preparation method of the described lead-acid accumulator electrolyte of claim 2～5 any one.
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Cited By (10)
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| CN104393351A (en) * | 2014-10-15 | 2015-03-04 | 超威电源有限公司 | Preparation and glue injection technology of lead acid storage battery gel electrolyte |
| CN104466219A (en) * | 2014-11-13 | 2015-03-25 | 无锡中洁能源技术有限公司 | Storage battery electrolyte and preparation method thereof |
| CN104659372A (en) * | 2015-02-15 | 2015-05-27 | 天能集团江苏科技有限公司 | Acid-free lead-lithium secondary battery negative plate and preparation method thereof |
| CN104779414A (en) * | 2015-04-18 | 2015-07-15 | 宁波维科电池股份有限公司 | Storage battery electrolyte and storage battery |
| CN105355984A (en) * | 2015-09-28 | 2016-02-24 | 芜湖日升重型机床有限公司 | Battery electrolyte for numerical control machine tool and preparation method of battery electrolyte and battery |
| CN106678721A (en) * | 2016-12-31 | 2017-05-17 | 新昌县迪斯曼科技有限公司 | Night lighting device for farmland |
| CN108258328A (en) * | 2017-11-13 | 2018-07-06 | 天能集团（河南）能源科技有限公司 | A kind of preparation method of colloidal electrolyte of lead acid accumulator |
| CN109546232A (en) * | 2018-11-02 | 2019-03-29 | 小洋电源股份有限公司 | A kind of Solid silica gel traction accumulator |
| CN114094202A (en) * | 2021-10-28 | 2022-02-25 | 天能电池集团股份有限公司 | Electrolyte for valve-regulated lead storage battery and lead storage battery |
| CN114597354A (en) * | 2022-02-25 | 2022-06-07 | 天能电池集团股份有限公司 | Lead storage battery positive electrode lead paste and preparation method thereof, and lead storage battery |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104393351A (en) * | 2014-10-15 | 2015-03-04 | 超威电源有限公司 | Preparation and glue injection technology of lead acid storage battery gel electrolyte |
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| CN104659372A (en) * | 2015-02-15 | 2015-05-27 | 天能集团江苏科技有限公司 | Acid-free lead-lithium secondary battery negative plate and preparation method thereof |
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| CN106678721A (en) * | 2016-12-31 | 2017-05-17 | 新昌县迪斯曼科技有限公司 | Night lighting device for farmland |
| CN108258328A (en) * | 2017-11-13 | 2018-07-06 | 天能集团（河南）能源科技有限公司 | A kind of preparation method of colloidal electrolyte of lead acid accumulator |
| CN109546232A (en) * | 2018-11-02 | 2019-03-29 | 小洋电源股份有限公司 | A kind of Solid silica gel traction accumulator |
| CN109546232B (en) * | 2018-11-02 | 2021-11-05 | 小洋电源股份有限公司 | Solid-state silica gel traction storage battery |
| CN114094202A (en) * | 2021-10-28 | 2022-02-25 | 天能电池集团股份有限公司 | Electrolyte for valve-regulated lead storage battery and lead storage battery |
| CN114597354A (en) * | 2022-02-25 | 2022-06-07 | 天能电池集团股份有限公司 | Lead storage battery positive electrode lead paste and preparation method thereof, and lead storage battery |
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