CN1381919A - Electrolyte additive for lead-acid accumulator - Google Patents

Electrolyte additive for lead-acid accumulator Download PDF

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Publication number
CN1381919A
CN1381919A CN01115335A CN01115335A CN1381919A CN 1381919 A CN1381919 A CN 1381919A CN 01115335 A CN01115335 A CN 01115335A CN 01115335 A CN01115335 A CN 01115335A CN 1381919 A CN1381919 A CN 1381919A
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battery
lead
acid accumulator
additive
charge
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CN01115335A
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CN1172396C (en
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刘淑娟
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JIAJIE-HENGXIN ENERGY TECHNOLOGY Co Ltd BEIJING
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JIAJIE-HENGXIN ENERGY TECHNOLOGY Co Ltd BEIJING
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Publication of CN1381919A publication Critical patent/CN1381919A/en
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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

An electrolyte additive for lead-acid accumulator is prepared from carbon, several inorganic salts, antioxidizing agent "264", antiageing agent MN, anticorrosion agent and distilled water. It can decrease the internal resistance of accumulator, elongate its service life and speed up charge.

Description

Electrolyte additive for lead-acid accumulator
The present invention relates to a kind of lead-acid accumulator electrolyte, especially relate to a kind of electrolyte that carries out the lead acid accumulator of quick charge.
In many fields today, the rise of particularly electric motor car industry, the quick charge problem of battery more and more comes into one's own.For satisfying the requirement of quick charge, must solve the two large problems that exists in the present lead-acid battery charging, the one, the battery polarization in the charging process is serious, when charging with big electric current, battery polarization makes charging voltage rise to gassing voltage very soon, at this moment re-uses big electric current, does not improve charge efficiency, on the contrary, battery itself also had certain damage; The 2nd, the corrosion resistance of battery in the cyclic process, particularly in the circulation of charging with macrocell, to the battery pole plates infringement greatly, has a strong impact on the life-span of lead acid accumulator like this.
In order to improve accumulator property, usually adopt and in the positive/negative plate of battery, add various active materials, resemble and use some cathode activation material such as MnO 2, CuO, NiOOH, PbO 2, CFx etc. with use carbon dust, metal dust etc. to stick with paste the electric conducting material of compound as negative electrode, for example, the technology of coating carbon dust on the PbO2 electrode is disclosed in (1) Japanese kokai publication sho 53-10828 number invention; (2) in the Japanese kokai publication sho 54-61642 number invention same technology with the coating of carbon suspension-turbid liquid is disclosed; Disclose in (3) Japanese kokai publication sho 57-158955 number invention in addition in the inner technology that adds carbon fiber of metallic lead; (4) CN 1146642A discloses the technology that adds the carbon of electrolytic oxidation in electrolyte.Foregoing invention all is to use the internal resistance that carbon element reduces battery.
Lead acid accumulator is cheap because of it, and technology maturation is used now in large quantities, though there are many novel batteries to begin to occur at present, lead-acid battery still has irreplaceable status in a lot of fields.Find that according to the study lead acid accumulator pole plate utilance in existing use approximately has only about 30%, battery used after a period of time, and the utilance of pole plate is also low.Particularly after carrying out continuous high current charge-discharge circulation, it is very fast that battery performance descends.
The objective of the invention is to develop a kind of efficient compound electrolyte additive for lead-acid accumulator, to adapt to the market demand of quick charge.When joining this electrolysis additive in the battery, can reduce the internal resistance of cell effectively, the polarization of battery when as far as possible eliminating charging, thereby use large current charge can charge into more electric weight, reduce the charging interval, by the synergy of composite parts, reduce of the infringement of large current charge mode simultaneously, prolong the useful life of battery battery.
The objective of the invention is to realize by following technical solution.A kind of electrolyte additive for lead-acid accumulator is characterized in that its composition is: carbon element, plurality of inorganic salt, antioxidant 264, age resistor MN, anticorrisive agent and distilled water.
Wherein said each composition is:
Form proportioning (by weight percentage) optimum ratio
Carbon element 0.2-5 0.45%
Sodium sulphate 0.3-3 0.44%
Magnesium sulfate 0.2-2 0.33%
Sodium metasilicate 0.1-1.5 0.2%
Sodium acetate 0.07-0.7 0.11%
Cobalt acetate 0.001-0.05 0.02%
Phosphoric acid 0.5-8 1%
Antioxidant 264 0.1-2 0.211%
Age resistor MN 0.1-2 0.103%
Distilled water is supplemented to 100%
The manufacture method of electrolyte additive for lead-acid accumulator of the present invention is divided into following step:
1, the making of carbon element: the method by electrochemical oxidation makes the surface of carbon be with negative electrical charge, makes it can be adsorbed by positive plate in when charging, gives full play to its effectiveness.
Raw material: sodium sulphate, magnesium sulfate, sodium metasilicate, sodium acetate and distilled water, fibrous carbon.With above-mentioned electrolyte and distilled water preparation electrolyte solution, be that anode passes to direct current with the fibrous carbon, carry out electrolytic oxidation, in this process, carbon surface is generated the group that has anion by the oxygen institute oxidation that brine electrolysis produced.
2, with the carbonoxide mixing and doping of other quantitative component and above-mentioned making, make compound electrolysis additive.
What the present invention was different with above-mentioned example is: the carbon element particulate is a component as composite parts; bring into play synergy jointly with other component; make in the battery electrolyte add additive of the present invention after; can not only reduce internal resistance effectively; can also improve ability to accept to big electric current; and the useful life of prolongation battery, thereby improved the battery serviceability, the protection battery.
Further specify composition of the present invention and experiment effect below in conjunction with drawings and Examples.
Fig. 1 shows two Battery pack charge acceptances contrast situation in the experiment;
Fig. 2 shows in the experiment 1 #Electric current ability to accept contrast situation before and after the battery circulation;
Fig. 3 shows in the experiment 2 #Electric current ability to accept contrast situation before and after the battery circulation;
Fig. 4 shows two Battery pack charge acceptance comparable situation in the experiment;
Fig. 5 shows the comparable situation of two Battery pack discharge capacities in the experiment;
Fig. 6 shows when experiment finishes, not the picture of doping battery pole plate;
Fig. 7 shows when experiment finishes, and adds the picture of this additive battery pole plates.
Embodiment 1:
Preferred carbon element 0.2, sodium sulphate 0.3, magnesium sulfate 0.2, sodium metasilicate 0.1, sodium acetate 0.07, cobalt acetate 0.001, phosphoric acid 0.5, antioxidant 264 0.1, age resistor MN 0.1, all the other are distilled water.Can prepare electrolyte additive for lead-acid accumulator of the present invention according to the method described above.
Embodiment 2:
Preferred carbon element 5, sodium sulphate 3, magnesium sulfate 2, sodium metasilicate 1.5, sodium acetate 0.7, cobalt acetate 0.05, phosphoric acid 8, antioxidant 264 2, age resistor MN 2, all the other are distilled water.Can prepare electrolyte additive for lead-acid accumulator of the present invention according to the method described above.
Embodiment 3:
Preferred carbon element 0.45%, Na 2SO 40.44%, MgSO 40.33%, Na 2SiO 30.2%, CH 3COONa 0.11%, cobalt acetate 0.02%, phosphatase 11 %, antioxidant 264 0.211%, age resistor MN 0.103%, distilled water are supplemented to 100%.
Prepare electrolysis additive of the present invention with said method, do the experiment of battery big electric current ability to accept.
Get the simple and easy battery of two joint 2V, 2AH, (being assembled into by 1.28 sulfuric acid) with a positive plate and negative plate, dividing plate and a proportion, a batteries wherein, do not add any additives, another batteries is added the compound additive of made of the present invention, and through after the initial charge, be that deboost carries out modified constant-voltage charge every day with 2.7V, electric current in the computer record charging process and voltage data write down a data point per 1 second.Then to decide resistance to battery discharge.Change charging current, with conventional and large current charge mode battery is charged respectively.Describe the variation of charging curve respectively, draw the result in constant current charge stage, relatively the two Battery packs electric weight that constant-current phase charges into different current charges the time.
Can prove by contrast test, little in charging cycle initial stages two Battery pack charge acceptance difference, carrying out along with circulation, the battery large current charge ability to accept that does not add any additives is descending gradually, and add the battery of electrolysis additive of the present invention, the charge acceptance of the charge acceptance of battery, particularly big electric current does not only descend, and is not that good battery also is greatly improved relatively for the pole plate performance.
Fig. 1 is that charging cycle is carried out after 50 times, the contrast situation of two Battery pack charge acceptances.From figure, can be clear that very much, add additive of the present invention after, battery is greatly improved on the large current charge ability to accept.
Fig. 2 and Fig. 3 compare the situation of change of two Battery packs at circulation initial stage and later stage charge acceptance respectively.
From Fig. 2 and Fig. 3 as can be seen, do not add the battery of any electrolysis additive, charge and discharge cycle is after a period of time, the big electric current ability to accept of battery reduces significantly, and add the battery of electrolysis additive of the present invention, and carrying out after one section circulation, the charge acceptance of big electric current does not only reduce, for the not good battery of performance, also has certain increase accordingly.
Fig. 4 does not add any additives battery and the comparison of adding additive battery of the present invention charge acceptance with different current charges the time.As can be seen from the figure the difference of the two is little when little electric current, and with the increase of charging current, the quality of charge acceptance is obvious gradually.
Embodiment 4:
Preferred carbon element 0.3%, Na 2SO 40.38%, MgSO 40.3%, Na 2SiO 30.2%, CH 3COONa 0.11%, cobalt acetate 0.02%, phosphatase 11 %, antioxidant 264 0.2%, age resistor MN 0.1%, distilled water are supplemented to 100%.
Prepare electrolysis additive of the present invention with said method, do the battery experiment in useful life.
Get the simple and easy battery of two joint 2V, 2AH, (being assembled into by 1.28 sulfuric acid) with a positive plate and negative plate, dividing plate and a proportion, a batteries wherein, do not add any additives, another batteries is added the compound additive of made of the present invention, through after the initial charge, be that deboost carries out overcharge test every day with 2.7V, electric current in the computer record charging process and voltage data, write down a data point per 1 second, draws two cell set capacity change curves.Mode is bigger to the infringement of pole plate because overcharge, so shortened the process of experiment.When the pole plate heavy corrosion of blank electrolysis solution battery, capacity stops test when descending rapidly.
Fig. 5 is the comparison that does not add battery with the discharge capacity of the cell that adds this additive of any additives in the cyclic process, as can be seen from the figure at first in circulation, two kinds of discharge capacity of the cell difference are little, but carrying out along with circulation, the discharge capacity of adding the battery of additive of the present invention is higher than the discharge capacity of not adding any additives battery always, at last, when the pole plate heavy corrosion of blank electrolysis solution battery, capacity stops test when descending rapidly.
When being off-test, Fig. 6 do not attach the picture of this additive battery pole plates.As can be seen from Figure 6, do not add the battery of any additives, pole plate is badly damaged during loop ends, can find out clearly that from cromogram black part is divided into active material and is bed separation.
Fig. 7 adds the picture that adds this additive battery pole plates.During off-test, bed separation does not appear in battery pole plates.
Can be clear that the battery that does not add any additives in the above-mentioned accompanying drawing under this specification example 2 described experiment conditions, pole plate comes off seriously, the active material fall in flakes; And the battery that adds additive of the present invention is under same experiment condition, and pole plate is not seen obvious impairment.This shows that electrolysis additive of the present invention can effectively be protected the pole plate of battery, prolong the useful life of battery.

Claims (3)

1, a kind of electrolyte additive for lead-acid accumulator is characterized in that its composition is: carbon element, plurality of inorganic salt, antioxidant 264, age resistor MN, anticorrisive agent and distilled water.
2, electrolyte additive for lead-acid accumulator according to claim 1 is characterized in that wherein said each composition is:
Form proportioning (by weight percentage)
Carbon element 0.2-5
Sodium sulphate 0.3-3
Magnesium sulfate 0.2-2
Sodium metasilicate 0.1-1.5
Sodium acetate 0.07-0.7
Cobalt acetate 0.001-0.05
Phosphoric acid 0.5-8
Antioxidant 264 0.1-2
Age resistor MN 0.1-2
Distilled water.
3, electrolyte additive for lead-acid accumulator according to claim 2 is characterized in that wherein said each composition is:
Form proportioning (by weight percentage)
Carbon element 0.45
Sodium sulphate 0.44
Magnesium sulfate 0.33
Sodium metasilicate 0.2
Sodium acetate 0.11
Cobalt acetate 0.02
Phosphatase 11
Antioxidant 264 0.211
Age resistor MN 0.103
Distilled water is supplemented to 100.
CNB011153350A 2001-04-20 2001-04-20 Electrolyte additive for lead-acid accumulator Expired - Fee Related CN1172396C (en)

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CNB011153350A CN1172396C (en) 2001-04-20 2001-04-20 Electrolyte additive for lead-acid accumulator

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Application Number Priority Date Filing Date Title
CNB011153350A CN1172396C (en) 2001-04-20 2001-04-20 Electrolyte additive for lead-acid accumulator

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CN1172396C CN1172396C (en) 2004-10-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1317789C (en) * 2005-06-24 2007-05-23 沈涛 Valve controlling type sealed lead acid battery with Nano carbon in electrolyte
CN104264075A (en) * 2005-12-09 2015-01-07 Posco公司 High Strenght Cold Rolled Steel Sheet Having Excellent Formability And Coating Property, Zinc-based Metal Plated Steel Sheet Made Of It And The Method For Manufacturing Thereof
CN105098260A (en) * 2015-09-17 2015-11-25 高文梅 Method for preparing high-durability storage battery

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280605B (en) * 2013-06-03 2015-08-26 湖北长信中电通信科技有限公司 A kind ofly prevent and remove the protection liquid of lead-acid storage battery vulcanization
CN105789710A (en) * 2016-05-04 2016-07-20 福建紫雄能源发展有限公司 Silicate-magnesium salt composite electrolyte for storage batteries

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1317789C (en) * 2005-06-24 2007-05-23 沈涛 Valve controlling type sealed lead acid battery with Nano carbon in electrolyte
CN104264075A (en) * 2005-12-09 2015-01-07 Posco公司 High Strenght Cold Rolled Steel Sheet Having Excellent Formability And Coating Property, Zinc-based Metal Plated Steel Sheet Made Of It And The Method For Manufacturing Thereof
CN104264075B (en) * 2005-12-09 2018-01-30 Posco公司 High strength cold rolled steel plate with excellent formability and coating characteristic, the zinc-base metal-plated steel plate and manufacture method being made from it
CN105098260A (en) * 2015-09-17 2015-11-25 高文梅 Method for preparing high-durability storage battery

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