CN1532983A - Rare-earth containing collidal electrolyte solution for accumulator and its preparing method - Google Patents
Rare-earth containing collidal electrolyte solution for accumulator and its preparing method Download PDFInfo
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- CN1532983A CN1532983A CNA03112030XA CN03112030A CN1532983A CN 1532983 A CN1532983 A CN 1532983A CN A03112030X A CNA03112030X A CN A03112030XA CN 03112030 A CN03112030 A CN 03112030A CN 1532983 A CN1532983 A CN 1532983A
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- sulfuric acid
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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
This invention discloses a colloid electrolyte containing rare earth used in the battery and its preparation method relating to a lead acid battery electrolyte and its method which includes sulfuric acid 34%-37%, sodium silicate 2%-3.5% counted in terms of SiO2, cerous ammonium nitrate 0.05-0.1%, Fe<0.004%. It's difficult for the said electrolyte to become the lean solution since its surface is 10%-15% higher than that of ordinary absorption sulfuric acid electrolyte, the actual capacity is increased, the constant current discharge time is prolonged, its density is high and temperature variance of charge/discharge is small, not easy to form 'heat out-off-control' harm the pole plates.
Description
Affiliated technical field
The present invention relates to a kind of lead-acid accumulator electrolyte and preparation method thereof, particularly colloidal electrolyte for accumulator and preparation method thereof.
Background technology
Colloidal electrolyte for accumulator development in recent years is very fast, common this electrolyte is the primary raw material preparation with sulfuric acid and silicate solution mainly, though having solved electrolyte spills easily and easily produces problems such as acid mist, but colloidal electrolyte only can reach about 80% of sulfuric acid electrolyte capacity, there are the shortcomings such as little, big electric current generating capacity difference of exerting oneself.
Summary of the invention
The purpose of this invention is to provide a kind of technical scheme of the novel electrolyte of initial capacity, preparation method that another object of the present invention provides this electrolyte of improving.
The present invention is achieved by the following technical solutions, and electrolyte of the present invention is that a certain amount of rare earth element is formulated in addition for primary raw material with sulfuric acid, sodium metasilicate.Its preparation method is: (1) preparation mixed liquor
1. ammonium ceric nitrate is dissolved in and makes the solution that concentration is 35%-47% in the deionized water,
2. sulfuric acid and deionized water are mixed with the sulfuric acid solution first that proportion is 1.28-1.30,
3. sulfuric acid and deionized water are mixed with the sulfuric acid solution second that proportion is 1.51-1.55,
4. the solution clarification back that sodium metasilicate and deionized water is mixed with proportion and is 1.03-1.07 is standby,
(2) 1. prepare the ammonium ceric nitrate sulfuric acid mixture liquid: get sulfuric acid solution first 99-99.5 weight portion and mix with 0.5-1 parts by weight of cerium nitrate ammonium salt solution,
2. prepare sulfuric acid sodium metasilicate mixed liquor: get sulfuric acid solution second and sodium silicate solution and mix according to 1: 1 volume ratio,
(3) filling electrolyte earlier adds the ammonium ceric nitrate sulfuric acid mixture liquid of storage battery 1/4 volume storage battery and fluctuates after liquid to be mixed fully absorbed by pole plate, with sulfuric acid sodium metasilicate mixed liquor storage battery is filled again.
Percentage by weight according to each raw material of battery liquid that contains rare earth of aforementioned proportion preparation is:
Sulfuric acid (H
2SO
4) 34%-37%
Sodium metasilicate is (with SiO
2Meter) 2.0%-3.5%
Ammonium ceric nitrate Ce (NH
4)
2(NO
3)
60.05-0.1%
Iron (Fe)＜0.004%.
In electrolyte, added the rare earth ammonium ceric nitrate among the present invention, it has antioxidation and catalysis pole plate activity, studies show that rare earth compound has certain beneficial effect to positive discharge, can improve active material utilization 6%～7%, make pole plate not easy fracture be difficult for corrosion life and prolong 1-2 doubly.Because rare earth element molecular structure I is filled up between big molecule, density of electrolyte increases, water retention property is strong thereby make simultaneously.Make mixed liquor by pole plate be absorbed by fully shaking special earlier sulfuric acid ammonium ceric nitrate mixed liquor the adding in the storage battery in the fill process of this electrolyte, and ammonium ceric nitrate can be evenly distributed in the pole plate periphery like this, brings into play its anti-oxidant and catalytic action.
The invention has the beneficial effects as follows that the colloidal electrolyte liquid level can exceed common absorption type battery sulfuric acid liquid level of electrolyte 10%-15% and be difficult for forming lean solution, actual capacity increase constant-current discharge time lengthening, the little difficult formation of density of electrolyte high charge-discharge variations in temperature " thermal runaway " and damage pole plate, the anti-oxidant and catalytic action of rare earth makes the life-span of pole plate prolong 1-2 times in addition.Battery capacity can reach more than 95% of sulfuric acid electrolyte storage battery, and more common colloidal electrolyte can only reach 80% and improve a lot.
Embodiment
Realize that the specific embodiment of the present invention is (1) preparation mixed liquor
1. ammonium ceric nitrate is dissolved in and makes the solution that concentration is 35%-47% in the deionized water,
2. storage battery is mixed with the sulfuric acid solution first that proportion is 1.28-1.30 with sulfuric acid and deionized water,
3. storage battery is mixed with the sulfuric acid solution second that proportion is 1.51-1.55 with sulfuric acid and deionized water,
4. the solution clarification back that sodium metasilicate and deionized water is mixed with proportion and is 1.03-1.07 is standby,
(2) 1. prepare the ammonium ceric nitrate sulfuric acid mixture liquid: get sulfuric acid solution first 99-99.5 weight portion and mix with 0.5-1 parts by weight of cerium nitrate ammonium salt solution
2. prepare sulfuric acid sodium metasilicate mixed liquor: get sulfuric acid solution second and sodium silicate solution and mix according to 1: 1 volume ratio
(3) filling electrolyte earlier adds the ammonium ceric nitrate sulfuric acid mixture liquid of storage battery 1/4 volume storage battery and fluctuates after 20-40 minute liquid to be mixed fully absorbed by pole plate, with sulfuric acid sodium metasilicate mixed liquor storage battery is filled again.
Embodiment 1, and 1. get proportion and be 1.28 sulfuric acid solution first 99 weight portions and mix with 1 parts by weight of cerium nitrate ammonium salt solution and produce sulfuric acid ammonium ceric nitrate mixed liquor,
2. get proportion and be 1.51 sulfuric acid solution second and proportion and be 1.07 sodium silicate solution and mix according to 1: 1 volume ratio and produce sulfuric acid sodium metasilicate mixed liquor,
3. earlier the ammonium ceric nitrate sulfuric acid mixture liquid of storage battery 1/4 volume is added storage battery and fluctuate after liquid to be mixed fully absorbed by pole plate, with sulfuric acid sodium metasilicate mixed liquor storage battery is filled again.
Embodiment 2, and 1. get proportion and be 1.29 sulfuric acid solution first 99.2 weight portions and mix with 0.8 parts by weight of cerium nitrate ammonium salt solution and produce sulfuric acid ammonium ceric nitrate mixed liquor,
2. get proportion and be 1.53 sulfuric acid solution second and proportion and be 1.05 sodium silicate solution and mix according to 1: 1 volume ratio and produce sulfuric acid sodium metasilicate mixed liquor,
3. earlier the ammonium ceric nitrate sulfuric acid mixture liquid of storage battery 1/4 volume is added storage battery and fluctuate after liquid to be mixed fully absorbed by pole plate, with sulfuric acid sodium metasilicate mixed liquor storage battery is filled again.
Embodiment 3, and 1. get proportion and be 1.30 sulfuric acid solution first 99.5 weight portions and mix with 0.6 parts by weight of cerium nitrate ammonium salt solution and produce sulfuric acid ammonium ceric nitrate mixed liquor,
2. get proportion and be 1.55 sulfuric acid solution second and proportion and be 1.03 sodium silicate solution and mix according to 1: 1 volume ratio and produce sulfuric acid sodium metasilicate mixed liquor,
3. earlier the ammonium ceric nitrate sulfuric acid mixture liquid of storage battery 1/4 volume is added storage battery and fluctuate after liquid to be mixed fully absorbed by pole plate, with sulfuric acid sodium metasilicate mixed liquor storage battery is filled again.
Percentage by weight according to each raw material of battery liquid that contains rare earth of aforementioned proportion preparation is:
Sulfuric acid (H
2SO
4) 34%-37%
Sodium metasilicate is (with SiO
2Meter) 2.0%-3.5%
Ammonium ceric nitrate Ce (NH
4)
2(NO
3)
60.05-0.1%
Iron (Fe)＜0.004%.
Claims (2)
1. a storage battery is characterized in that with the colloidal electrolyte that contains rare earth: contain the colloidal electrolyte sulfur acid 34%-37% of rare earth, sodium metasilicate is in silicon dioxide 2%-3.5%, ammonium ceric nitrate 0.05-0.1%, iron＜0.004%.
2. storage battery according to claim 1 is characterized in that: (1) preparation mixed liquor with the preparation method of the colloidal electrolyte that contains rare earth
1. ammonium ceric nitrate is dissolved in and makes the solution that concentration is 35%-47% in the deionized water,
2. sulfuric acid and deionized water are mixed with the sulfuric acid solution first that proportion is 1.28-1.30,
3. sulfuric acid and deionized water are mixed with the sulfuric acid solution second that proportion is 1.51-1.55,
4. the solution clarification back that sodium metasilicate and deionized water is mixed with proportion and is 1.03-1.07 is standby,
(2) 1. prepare the ammonium ceric nitrate sulfuric acid mixture liquid: get sulfuric acid solution first 99-99.5 weight portion and mix with 0.5-1 parts by weight of cerium nitrate ammonium salt solution
2. prepare sulfuric acid sodium metasilicate mixed liquor: get sulfuric acid solution second and sodium silicate solution and mix according to 1: 1 volume ratio
(3) filling electrolyte earlier adds the ammonium ceric nitrate sulfuric acid mixture liquid of storage battery 1/4 volume storage battery and fluctuates after liquid to be mixed fully absorbed by pole plate, with sulfuric acid sodium metasilicate mixed liquor storage battery is filled again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03112030XA CN1227762C (en) | 2003-03-24 | 2003-03-24 | Rare-earth containing collidal electrolyte solution for accumulator and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03112030XA CN1227762C (en) | 2003-03-24 | 2003-03-24 | Rare-earth containing collidal electrolyte solution for accumulator and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1532983A true CN1532983A (en) | 2004-09-29 |
| CN1227762C CN1227762C (en) | 2005-11-16 |
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ID=34283597
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB03112030XA Expired - Fee Related CN1227762C (en) | 2003-03-24 | 2003-03-24 | Rare-earth containing collidal electrolyte solution for accumulator and its preparing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569883A (en) * | 2012-02-15 | 2012-07-11 | 扬州大学 | Method for preparing electrolyte of colloid storage battery capable of carrying out deep high-power discharging |
| CN103633380A (en) * | 2013-12-10 | 2014-03-12 | 北京清大环科电源技术有限公司 | Colloidal electrolyte of lead-acid storage battery and colloidal lead-acid storage battery |
| CN104505538A (en) * | 2014-12-24 | 2015-04-08 | 福州大学 | Electrolyte additive for inhibiting hydrogen evolution of negative plate for lead-acid storage battery |
-
2003
- 2003-03-24 CN CNB03112030XA patent/CN1227762C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569883A (en) * | 2012-02-15 | 2012-07-11 | 扬州大学 | Method for preparing electrolyte of colloid storage battery capable of carrying out deep high-power discharging |
| CN102569883B (en) * | 2012-02-15 | 2014-12-10 | 扬州大学 | Method for preparing electrolyte of colloid storage battery capable of carrying out deep high-power discharging |
| CN103633380A (en) * | 2013-12-10 | 2014-03-12 | 北京清大环科电源技术有限公司 | Colloidal electrolyte of lead-acid storage battery and colloidal lead-acid storage battery |
| CN104505538A (en) * | 2014-12-24 | 2015-04-08 | 福州大学 | Electrolyte additive for inhibiting hydrogen evolution of negative plate for lead-acid storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1227762C (en) | 2005-11-16 |
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Granted publication date: 20051116 |