CN106252776B - A kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up - Google Patents
A kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up Download PDFInfo
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- CN106252776B CN106252776B CN201610778050.1A CN201610778050A CN106252776B CN 106252776 B CN106252776 B CN 106252776B CN 201610778050 A CN201610778050 A CN 201610778050A CN 106252776 B CN106252776 B CN 106252776B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/56—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead
- H01M4/57—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of lead of "grey lead", i.e. powders containing lead and lead oxide
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Abstract
The present invention relates to a kind of techniques preparing battery cathode powder using the positive and negative electrode active material that gives up, the technique includes the positive plate and negative plate that will be scrapped, positive active material and negative electrode active material are peeled off after being separately dried, positive active material and dilute sulfuric acid are mixed again, sodium hydroxide desulfurization is added after being mixed with negative electrode active material in obtained reactivity substance, is washed after reaction to neutrality, filtering, lead plaster and filtrate are obtained, filtrate crystallisation by cooling preserves；Ball milling after lead plaster vacuum drying, obtains negative electrode battery powder.The present invention prepares negative electrode battery powder using the positive active material scrapped with negative electrode active material; method is simple and practicable; reduce the yield of sulfate by-products; so that pollution risk further decreases; process meets clean manufacturing requirement; the battery production period is shortened, production cost is reduced, is conducive to environmental protection.
Description
Technical field
The present invention relates to a kind of old and useless battery recoverying and utilizing methods, specifically design a kind of useless positive and negative electrode active material of utilization
The technique for preparing battery cathode powder.
Background technology
Lead-acid accumulator has many advantages, such as that performance is reliable, storage life is longer, cheap and raw material is easy to get, always
It is widely applied to every field, especially power applications, field of telecommunications, stand-by power supply, accumulation power supply etc..
The positive and negative electrode active material much scrapped is will produce in battery production link at present, (in outer formation process when special
In), the active material scrapped not only generates pollution to environment but also can not directly utilize the production cost of raising battery.It scraps
Positive active material, which mainly contains, crystallizes coarse low activity lead sulfate and lead oxide, and it is coarse that negative electrode active material contains crystallization
Low activity lead sulfate and metallic lead.
Invention content
It is an object of the invention to generate the positive and negative anodes active material much scrapped to solve existing battery production link,
Production cost is improved, the defect of environment is polluted and a kind of reduction production cost is provided, the cyclic utilization of waste is conducive to environmental protection
Utilization give up the technique that positive and negative electrode active material prepares battery cathode powder.
To achieve the goals above, the present invention uses following technical scheme：
A kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up, the technique includes that will scrap just
Pole plate and negative plate peel off positive active material and negative electrode active material after being separately dried, then chemically examine positive active material, bear
The content of brown lead oxide, lead, lead oxide, lead sulfate in the active material of pole, then positive active material and dilute sulfuric acid are mixed,
Sodium hydroxide desulfurization is added after being mixed with negative electrode active material in obtained reactivity substance, is washed after reaction to neutrality,
Filtering, obtains lead plaster and filtrate, and filtrate crystallisation by cooling preserves；Ball milling after lead plaster vacuum drying, obtains oxidizability 70-80%, puts down
The negative electrode battery powder of equal 2-3 μm of grain size.In the technical scheme, the active material on the positive plate and negative plate scrapped is shelled
It falls, then passes through reaction desulfuration so that battery cathode powder is made, can make the cyclic utilization of waste, be conducive to environmental protection,
And production cost is saved, due to crystallizing coarse lead sulfate and lead oxide in positive active material and negative electrode active material,
The presence of metallic lead needs to be refined, to improve performance of the negative electrode powder after being prepared into battery, so needing to be carried out anti-
It should be with desulfurization, ball milling.
Preferably, the technique includes the following steps：
1) positive plate and negative plate scrapped are collected；
2) positive plate for obtaining step 1) is dry at 100 DEG C, and the negative plate that step 1) is obtained is washed, in 70-100
It is dried in vacuo at DEG C；
3) positive active material and negative electrode active material are peeled off on the positive plate and negative plate from step 2) after dry；
4) content of chemical examination positive active material and brown lead oxide, lead, lead oxide and lead sulfate in negative electrode active material；
5) it is 1 in molar ratio by the dilution heat of sulfuric acid that the positive active material of step 4) and density are 1.34-1.36g/mL:
1.05 mixing, are stirred to react 2h at 80-120 DEG C, obtain reactivity substance；
6) the reactivity substance for obtaining step 5) and the negative electrode active material of step 4) are 1 in mass ratio:0.5 is added
To stirring at normal temperature desulfurization 30min in the sodium hydroxide of mass fraction 5-10%, desulphurization reaction object is obtained；
7) the desulphurization reaction object pressure filtration washing obtained step 6) is neutral, obtains lead plaster and filtrate, filtrate crystallisation by cooling；
8) lead plaster that step 7) obtains is dried in vacuo 2h at 70-100 DEG C；
9) the ball milling 15min in ball mill or cutter of the lead plaster by step 8) after dry, obtains negative electrode battery powder.
In the technical scheme, the reaction equation of step 5)：
The reaction equation of step 6)：PbSO4+2NaOH→PbO+H2O+Na2SO4。
Filtrate is metabisulfite solution in step 7), obtains sodium sulphate after being cooled to crystallization and may be used as additives for battery.
Preferably, being additionally added the nano indium oxide and graphene of polyaniline-coated in step 6), addition is step 5)
The 0.35-2% of obtained reactivity substance and the negative electrode active material gross mass of step 4), polyaniline-coated it is nano oxidized
The mass ratio of indium and graphene is 3:1.In the technical scheme, the addition of the nano indium oxide and graphene of polyaniline-coated can
So that negative electrode powder, which is prepared, has very high conductivity, high mechanical properties and corrosion resistance, lead-acid accumulator can be improved
The electronics of active material passes to ability, prevents the generation on barrier layer, improves battery performance, and can improve corrosion resistance, extends lead
The service life of acid accumulator.
Preferably, the preparation method of the nano indium oxide of polyaniline-coated is：Indium oxide is dissolved in diethylene glycol (DEG) to obtain instead
System is answered, is then slowly added into sodium hydroxide, 140-160 DEG C is warming up in 2-2.5h after stirring 1-3h, reacts cold after 1-3h
But；It centrifuges obtained sediment and uses volume ratio 1 successively:2 ethyl alcohol is washed with methyl acetate mixed solution, acetone, deionized water,
Vacuum drying obtains base core nano indium oxide；Then by base core nano indium oxide ultrasonic disperse in absolute ethyl alcohol, addition contains
The ethanol solution of polyaniline is added dropwise concentrated ammonia liquor, is stirred to react 1-1.5h at 85-95 DEG C, the sediment being centrifugally separating to obtain
It is washed successively with absolute ethyl alcohol, deionized water, is crushed after roasting and obtain polyaniline-coated nano indium oxide.
Preferably, mixing speed is 100-300rpm in step 5).
Preferably, positive active material PbO in step 4)2Content is 55-65%, PbSO4For 35-45%, negative electrode active
Pb contents are 65-75%, PbO 10-20%, PbSO in substance4For 14%, BaSO4It is 1%.
Preferably, the sulfuric acid described in step 5) is internalized into battery extraction using after being filtered to remove silica
Spent acid.
Preferably, lead sulfate amount and sodium hydroxide molar ratio 1 in reactivity object described in step 6)：2.1-2.5.
The beneficial effects of the invention are as follows the present invention to prepare battery using the positive active material scrapped with negative electrode active material
With negative electrode powder, method is simple and practicable, reduces the yield of sulfate by-products so that pollution risk further decreases, and process meets
Clean manufacturing requirement, shortens the battery production period, reduces production cost, be conducive to environmental protection.
Specific implementation mode
Below by specific embodiment, technical scheme of the present invention will be further explained in detail.It should be appreciated that this hair
Bright implementation is not limited to the following examples, and the accommodation in any form made to the present invention and/or changed will all be fallen
Enter the scope of the present invention.
In the present invention, if not refering in particular to, all parts, percentage are unit of weight, used equipment and raw material etc.
It is commercially available or commonly used in the art.Method in following embodiments is unless otherwise instructed the normal of this field
Rule method.
The content of positive active material and brown lead oxide, lead, lead oxide and lead sulfate in negative electrode active material is chemically examined, as a result
It is：Positive active material PbO2Content is 55-65%, PbSO4For 35-45%, Pb contents are 65-75% in negative electrode active material,
PbO is 10-20%, PbSO4For 14%, BaSO4It is 1%.
Embodiment 1
A kind of technique being prepared battery cathode powder using the positive and negative electrode active material that gives up, the technique are included the following steps：
1) positive plate and negative plate scrapped are collected；
2) positive plate for obtaining step 1) is dry at 100 DEG C, and the negative plate that step 1) is obtained is washed, at 70 DEG C
Vacuum drying；
3) positive active material and negative electrode active material are peeled off on the positive plate and negative plate from step 2) after dry；
4) content of chemical examination positive active material and brown lead oxide, lead, lead oxide and lead sulfate in negative electrode active material；
5) it is 1 in molar ratio by the dilution heat of sulfuric acid that the positive active material of step 4) and density are 1.34g/mL:1.05
Mixing, is stirred to react 2h, mixing speed 100rpm obtains reactivity substance at 80 DEG C；The sulfuric acid is using process
It is filtered to remove the spent acid for being internalized into battery extraction after silica；
6) nano indium oxide of the reactivity substance, polyaniline-coated that obtain step 5), graphene and step 4)
Negative electrode active material is 1 in mass ratio:0.5 is added to stirring at normal temperature desulfurization 30min in the sodium hydroxide of mass fraction 5%, obtains
To desulphurization reaction object；Wherein, the nano indium oxide of polyaniline-coated, graphene addition be the obtained reactivity of step 5)
Substance and the 0.35% of the negative electrode active material gross mass of step 4), the nano indium oxide of polyaniline-coated and the quality of graphene
Than being 3:1；The preparation method of the nano indium oxide of polyaniline-coated is：Indium oxide is dissolved in diethylene glycol (DEG) and obtains reaction system, so
After be slowly added to sodium hydroxide, be warming up to 140 DEG C in 2h after stirring 1h, react 1h postcoolings；Centrifuge obtained sediment according to
It is secondary to use volume ratio 1:2 ethyl alcohol is washed with methyl acetate mixed solution, acetone, deionized water, and vacuum drying obtains base core nanometer
Indium oxide；Then by base core nano indium oxide ultrasonic disperse in absolute ethyl alcohol, the ethanol solution containing polyaniline is added,
Concentrated ammonia liquor is added dropwise, 1h is stirred to react at 85 DEG C, the sediment being centrifugally separating to obtain is washed with absolute ethyl alcohol, deionized water successively,
It is crushed after roasting and obtains polyaniline-coated nano indium oxide；
7) the desulphurization reaction object pressure filtration washing obtained step 6) is neutral, obtains lead plaster and filtrate, filtrate crystallisation by cooling；
8) lead plaster that step 7) obtains is dried in vacuo 2h at 70 DEG C；
9) the ball milling 15min in ball mill of the lead plaster by step 8) after dry, obtains negative electrode battery powder.
PbO in 100g positive active materials2Content 60%, PbSO440%, PbO260g, PbSO440g is reacted by step 5
Obtain PbSO4116g
According to matching negative electrode active material 58g in step 6, Pb 40.6g, PbSO in negative electrode active material48.12g,
PbO8.7, BaSO40.58g obtains Pb 40.6g, lead oxide 100.1g after step 6 reaction, by the above mixture by walking
Rapid 8, oxidizability 75.8% (mechanical milling process part lead is aoxidized), the negative electrode powder that 2.2 microns of grain size are obtained after step 9.
Embodiment 2
A kind of technique being prepared battery cathode powder using the positive and negative electrode active material that gives up, the technique are included the following steps：
1) positive plate and negative plate scrapped are collected；
2) positive plate for obtaining step 1) is dry at 100 DEG C, and the negative plate that step 1) is obtained is washed, at 80 DEG C
Vacuum drying；
3) positive active material and negative electrode active material are peeled off on the positive plate and negative plate from step 2) after dry；
4) content of chemical examination positive active material and brown lead oxide, lead, lead oxide and lead sulfate in negative electrode active material；
5) it is 1 in molar ratio by the dilution heat of sulfuric acid that the positive active material of step 4) and density are 1.35g/mL:1.05
Mixing, is stirred to react 2h, mixing speed 200rpm obtains reactivity substance at 100 DEG C；The sulfuric acid is using process
It is filtered to remove the spent acid for being internalized into battery extraction after silica；
6) nano indium oxide of the reactivity substance, polyaniline-coated that obtain step 5), graphene and step 4)
Negative electrode active material is 1 in mass ratio:0.5 is added to stirring at normal temperature desulfurization 30min in the sodium hydroxide of mass fraction 8%, obtains
To desulphurization reaction object；Wherein, the nano indium oxide of polyaniline-coated, graphene addition be the obtained reactivity of step 5)
Substance and the 1.2% of the negative electrode active material gross mass of step 4), the nano indium oxide of polyaniline-coated and the quality of graphene
Than being 3:1；The preparation method of the nano indium oxide of polyaniline-coated is：Indium oxide is dissolved in diethylene glycol (DEG) and obtains reaction system, so
After be slowly added to sodium hydroxide, be warming up to 150 DEG C in 2.5h after stirring 2h, react 2h postcoolings；Centrifuge obtained sediment
Volume ratio 1 is used successively:2 ethyl alcohol is washed with methyl acetate mixed solution, acetone, deionized water, and vacuum drying obtains Ji Hena
Rice indium oxide；Then by base core nano indium oxide ultrasonic disperse in absolute ethyl alcohol, it is molten that the absolute ethyl alcohol containing polyaniline is added
Liquid is added dropwise concentrated ammonia liquor, 1.5h is stirred to react at 90 DEG C, and the sediment being centrifugally separating to obtain uses absolute ethyl alcohol, deionized water successively
Washing crushes after roasting and obtains polyaniline-coated nano indium oxide；
7) the desulphurization reaction object pressure filtration washing obtained step 6) is neutral, obtains lead plaster and filtrate, filtrate crystallisation by cooling；
8) lead plaster that step 7) obtains is dried in vacuo 2h at 90 DEG C；
9) the ball milling 15min in cutter of the lead plaster by step 8) after dry, obtains negative electrode battery powder.
PbO in 100g positive active materials2Content 60%, PbSO440%, PbO260g, PbSO440g is reacted by step 5
Obtain PbSO4116g
According to matching negative electrode active material 58g in step 6, Pb 40.6g, PbSO in negative electrode active material48.12g,
PbO8.7g, BaSO40.58g obtains Pb 40.6g, lead oxide 100.1g after step 6 reaction, by the above mixture by walking
Rapid 8, oxidizability 79% (mechanical milling process part lead is aoxidized), the negative electrode powder that 2.2 microns of grain size are obtained after step 9.
Embodiment 3
A kind of technique being prepared battery cathode powder using the positive and negative electrode active material that gives up, the technique are included the following steps：
1) positive plate and negative plate scrapped are collected；
2) positive plate for obtaining step 1) is dry at 100 DEG C, and the negative plate that step 1) is obtained is washed, at 100 DEG C
Lower vacuum drying；
3) positive active material and negative electrode active material are peeled off on the positive plate and negative plate from step 2) after dry；
4) content of chemical examination positive active material and brown lead oxide, lead, lead oxide and lead sulfate in negative electrode active material；
5) it is 1 in molar ratio by the dilution heat of sulfuric acid that the positive active material of step 4) and density are 1.36g/mL:1.05
Mixing, is stirred to react 2h, mixing speed 300rpm obtains reactivity substance at 120 DEG C；The sulfuric acid is using process
It is filtered to remove the spent acid for being internalized into battery extraction after silica；
6) nano indium oxide of the reactivity substance, polyaniline-coated that obtain step 5), graphene and step 4)
Negative electrode active material is 1 in mass ratio:0.5 is added to stirring at normal temperature desulfurization 30min in the sodium hydroxide of mass fraction 10%, obtains
To desulphurization reaction object；Wherein, the nano indium oxide of polyaniline-coated, graphene addition be the obtained reactivity of step 5)
Substance and the 2% of the negative electrode active material gross mass of step 4), the nano indium oxide of polyaniline-coated and the mass ratio of graphene
It is 3:1；The preparation method of the nano indium oxide of polyaniline-coated is：Indium oxide is dissolved in diethylene glycol (DEG) and obtains reaction system, then
It is slowly added to sodium hydroxide, 160 DEG C is warming up in 2.5h after stirring 3h, reacts 3h postcoolings；Centrifuge obtained sediment according to
It is secondary to use volume ratio 1:2 ethyl alcohol is washed with methyl acetate mixed solution, acetone, deionized water, and vacuum drying obtains base core nanometer
Indium oxide；Then by base core nano indium oxide ultrasonic disperse in absolute ethyl alcohol, the ethanol solution containing polyaniline is added,
Concentrated ammonia liquor is added dropwise, 1.5h is stirred to react at 95 DEG C, the sediment being centrifugally separating to obtain uses absolute ethyl alcohol, deionization to wash successively
It washs, is crushed after roasting and obtain polyaniline-coated nano indium oxide；
7) the desulphurization reaction object pressure filtration washing obtained step 6) is neutral, obtains lead plaster and filtrate, filtrate crystallisation by cooling；
8) lead plaster that step 7) obtains is dried in vacuo 2h at 100 DEG C；
9) the ball milling 15min in ball mill or cutter of the lead plaster by step 8) after dry, obtains negative electrode battery powder.
PbO in 100g positive active materials2Content 60%, PbSO440%, PbO260g, PbSO440g is reacted by step 5
Obtain PbSO4116g；
According to matching negative electrode active material 58g in step 6, Pb 40.6g, PbSO in negative electrode active material48.12g,
PbO8.7g, BaSO40.58g obtains Pb 40.6g, lead oxide 100.1g after step 6 reaction, by the above mixture by walking
Rapid 8, oxidizability 80% (mechanical milling process part lead is aoxidized), the negative electrode powder that 2.2 microns of grain size are obtained after step 9.
Using the present invention negative electrode powder made of 12V 12Ah lead-acid accumulators, 100%DOD cycle lives up to 600 times with
On, when recycling 300 times, discharge time, compared with conventional batteries, charge acceptance improved still in 120min or more
20% or more.
It should be understood that those skilled in the art, can be improved or be become according to the above description
It changes, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (8)
1. a kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up, which is characterized in that the technique includes will
The positive plate and negative plate scrapped peel off positive active material and negative electrode active material after being separately dried, then chemical examination anode is living
The content of brown lead oxide, lead, lead oxide, lead sulfate in property substance, negative electrode active material, then by positive active material and dilute sulphur
Acid is mixed, and sodium hydroxide desulfurization is added after being mixed with negative electrode active material in obtained reactivity substance, after reaction
Washing to neutrality, filtering obtains lead plaster and filtrate, and filtrate crystallisation by cooling preserves；Ball milling after lead plaster vacuum drying, obtains oxidizability
70-80%, the negative electrode battery powder of 2-3 μm of average grain diameter.
2. a kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up according to claim 1, feature
It is, the technique includes the following steps：
1）Collect the positive plate and negative plate scrapped；
2）By step 1）Obtained positive plate is dry at 100 DEG C, by step 1）Obtained negative plate washing, at 70-100 DEG C
Vacuum drying；
3）From step 2）Positive active material and negative electrode active material are peeled off on positive plate and negative plate after drying；
4）Chemically examine the content of positive active material and brown lead oxide, lead, lead oxide and lead sulfate in negative electrode active material；
5）By step 4）Positive active material and density be 1.34-1.36g/mL dilution heat of sulfuric acid be 1 in molar ratio:1.05
Mixing, is stirred to react 2h at 80-120 DEG C, obtains reactivity substance；
6）By step 5）Obtained reactivity substance and step 4）Negative electrode active material in mass ratio be 1:0.5 is added to matter
Stirring at normal temperature desulfurization 30min in the sodium hydroxide of score 5-10% is measured, desulphurization reaction object is obtained；
7）By step 6）Obtained desulphurization reaction object pressure filtration washing is neutral, obtains lead plaster and filtrate, filtrate crystallisation by cooling；
8）By step 7）Obtained lead plaster is dried in vacuo 2h at 70-100 DEG C；
9）By step 8）Lead plaster after the drying ball milling 15min in ball mill or cutter, obtains negative electrode battery powder.
3. a kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up according to claim 2, feature
It is, step 6）In be additionally added the nano indium oxide and graphene of polyaniline-coated, addition is step 5）Obtained reaction is lived
Property substance and step 4）Negative electrode active material gross mass 0.35-2%, the nano indium oxide of polyaniline-coated and graphene
Mass ratio is 3:1.
4. a kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up according to claim 3, feature
It is, the preparation method of the nano indium oxide of polyaniline-coated is：Indium oxide is dissolved in diethylene glycol (DEG) and obtains reaction system, is then delayed
It is slow that sodium hydroxide is added, it is warming up to 140-160 DEG C in 2-2.5h after stirring 1-3h, reacts 1-3h postcoolings；What centrifugation obtained
Sediment uses volume ratio 1 successively:2 ethyl alcohol is washed with methyl acetate mixed solution, acetone, deionized water, and vacuum drying obtains
Base core nano indium oxide；Then by base core nano indium oxide ultrasonic disperse in absolute ethyl alcohol, addition contains the anhydrous of polyaniline
Ethanol solution is added dropwise concentrated ammonia liquor, is stirred to react 1-1.5h at 85-95 DEG C, the sediment being centrifugally separating to obtain is successively with anhydrous second
Alcohol, deionized water washing, crush after roasting and obtain polyaniline-coated nano indium oxide.
5. a kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up according to claim 2, feature
It is, step 5）Middle mixing speed is 100-300rpm.
6. a kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up according to claim 2, feature
It is, step 4）Middle positive active material PbO2Content is 55-65%, PbSO4For 35-45%, Pb contains in negative electrode active material
Amount is 65-75%, PbO 10-20%, PbSO4For 14%, BaSO4It is 1%.
7. a kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up according to claim 2, feature
It is, step 5）Described in sulfuric acid using after being filtered to remove silica be internalized into battery extraction spent acid.
8. a kind of technique preparing battery cathode powder using the positive and negative electrode active material that gives up according to claim 2, feature
It is, step 6）Described in lead sulfate amount and sodium hydroxide molar ratio 1 in reactivity object：2.1-2.5.
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| CN100576626C (en) * | 2008-07-11 | 2009-12-30 | 东莞市松山科技集团有限公司 | A kind of process that realizes full cycle regeneration of lead acid battery |
| CN101956214B (en) * | 2010-09-30 | 2012-05-09 | 北京化工大学 | Method for recycling secondary lead by electrolyzing alkaline leaded solution |
| CN103374657A (en) * | 2012-04-24 | 2013-10-30 | 湖北金洋冶金股份有限公司 | Ultrafine lead oxide prepared by using waste lead plaster and preparation method thereof |
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| CN105226342B (en) * | 2015-10-28 | 2017-07-18 | 东南大学 | A kind of method that active material of utilization waste lead acid battery prepares new lead-acid battery |
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