CN116454288A - Method for adding graphene into lead-acid storage battery to circularly punch positive grid - Google Patents
Method for adding graphene into lead-acid storage battery to circularly punch positive grid Download PDFInfo
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- CN116454288A CN116454288A CN202310513036.9A CN202310513036A CN116454288A CN 116454288 A CN116454288 A CN 116454288A CN 202310513036 A CN202310513036 A CN 202310513036A CN 116454288 A CN116454288 A CN 116454288A
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- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 60
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000002253 acid Substances 0.000 title claims abstract description 28
- 238000003860 storage Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 82
- 239000000956 alloy Substances 0.000 claims abstract description 46
- 238000012360 testing method Methods 0.000 claims abstract description 32
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 7
- 239000011575 calcium Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 17
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 12
- 125000004122 cyclic group Chemical group 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 8
- 235000010344 sodium nitrate Nutrition 0.000 claims description 8
- 239000004317 sodium nitrate Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- ULGYAEQHFNJYML-UHFFFAOYSA-N [AlH3].[Ca] Chemical compound [AlH3].[Ca] ULGYAEQHFNJYML-UHFFFAOYSA-N 0.000 claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 238000011056 performance test Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000001965 increasing effect Effects 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract description 6
- 239000001999 grid alloy Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000002142 lead-calcium alloy Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- H01M4/64—Carriers or collectors
- H01M4/82—Multi-step processes for manufacturing carriers for lead-acid accumulators
-
- 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
- H01M10/06—Lead-acid accumulators
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/68—Selection of materials for use in lead-acid accumulators
-
- 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
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
- H01M4/73—Grids for lead-acid accumulators, e.g. frame plates
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention relates to the technical field of positive grids of batteries, and discloses a method for adding graphene to circularly punch positive grids of a lead-acid storage battery, which comprises the following steps: forming an alloy material, preparing an alloy material from a synthetic component, obtaining an alloy material containing a graphene component, and preparing the alloy material through the following steps of S1, melting lead; s2, deslagging treatment; s3, adding graphene; s4, adding calcium and mixing; s5, adding tin and mixing; s6: casting ingot; step two: manufacturing a polar plate; step three: manufacturing a battery; step four: and (5) testing performance. The positive plate made of the graphene-containing material has the effect of increasing the corrosion resistance and creep resistance of the battery in the application of the battery, so that the problem of the service life of the battery is solved fundamentally, the grid alloy component is changed by adopting a mode of increasing the graphene, a method is provided for enhancing the cycle performance of the lead-acid battery and prolonging the service life of the battery, and the market competitiveness of enterprises is enhanced.
Description
Technical Field
The invention relates to the technical field of positive grids of batteries, in particular to a method for adding graphene to circularly punch positive grids of a lead-acid storage battery.
Background
At present, the market demand of the lead-acid storage battery industry is very strong, the whole industry is expected to grow by about 10% each year in the next few years, and in order to better adapt to the market demand, the service life of a battery needs to be prolonged, so that the cost of enterprises is reduced, the profit of the enterprises is increased, the waste of energy sources can be reduced, the pollution to the environment is reduced, and in the lead-acid storage battery, a compound with poor conductivity is easily formed in the long-time use process of a positive grid, and the conductivity of a positive grid interface is influenced.
In the long-time recycling process of many lead-acid storage batteries, the corrosion and growth of the grid are reduced due to factors of the surrounding environment and factors of lower corrosion resistance of the positive grid, wherein the most important root cause is that the corrosion resistance and creep resistance of the lead-calcium alloy for manufacturing the positive grid cannot meet the requirements. In view of the above, a method for adding graphene to circularly punch positive grid of lead-acid storage battery is provided
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for adding a graphene cyclic net punching positive grid of a lead-acid storage battery, which solves the problems in the background art.
Technical proposal
In order to achieve the above purpose, the present invention provides the following technical solutions: a method for adding graphene to cyclically punch positive grid of a lead-acid storage battery comprises the following steps:
step one: forming an alloy material, preparing an alloy material from the synthetic components, obtaining an alloy material containing graphene components, preparing the alloy material by the following steps,
s1, melting lead, namely adding the lead in the total amount of the matched gold into a container, reserving the rest lead ingots to obtain a cooling material, and heating the container to melt the lead to obtain an initial material I;
s2, deslagging, namely adding the initial material I in the container with the prepared sodium nitrate and sodium hydroxide at high temperature, stirring, mixing to obtain a mixed material I, and fishing lead slag in the mixed material I to obtain an initial material II;
s3, adding graphene, heating and continuously stirring the initial material II, adding the graphene to obtain a mixed material II, and continuously stirring the mixed material II to obtain an initial material III;
s4, adding calcium for mixing, controlling the temperature of the initial material III, continuously stirring the initial material III, adding the calcium-aluminum alloy to obtain a mixed material III, and stirring the mixed material III to obtain an initial material IV;
s5, adding tin for mixing, namely adding a reserved lead ingot into the initial material IV, controlling the container to be cooled, adding the tin ingot to obtain a mixed material IV, and stirring the mixed material IV to obtain an initial material V;
s6: sampling and detecting the initial material V, controlling the temperature after confirming that the material is qualified, and casting a lead into an ingot to form an alloy material;
step two: manufacturing a polar plate, and processing the manufactured alloy material to obtain a positive plate;
step three: manufacturing a battery, manufacturing a positive plate into the battery, and then verifying the cycle performance of the battery;
step four: and (3) performing performance test, namely discharging a battery made of the graphene positive plate, performing cycle comparison test with a common battery, and obtaining a test result.
Preferably, the container in the step S1 is a lead dissolving furnace, the lead content of the total amount of the gold matched in the step S1 is 85% -95%, and the cooling material is 5% -15%.
Preferably, the high temperature in the S2 is 600-650 ℃, the weights of the sodium nitrate and the sodium hydroxide are respectively 1-4Kg and 4-6Kg, and the stirring time in the S2 is 30min.
Preferably, the temperature is raised to 675 ℃ in the step S3, and the total stirring time in the step S3 is 30-60min.
Preferably, the temperature is controlled to be 620 ℃ to 650 ℃ in the step S4, and the total stirring time in the step S4 is 15min.
Preferably, the temperature of the container in the step S5 after the temperature is reduced is 550 ℃, the stirring time of the container in the step S5 is 20min, and the temperature in the step S6 is controlled to be 500-550 ℃.
Preferably, the alloy material is subjected to polar plate manufacture by the following steps,
a1: melting alloy, placing the alloy material in a lead melting furnace for heating, and heating the furnace to 500-550 ℃ to obtain alloy lead liquid, and testing the alloy lead liquid;
a2: pouring alloy lead liquid into a belt casting machine, and running the belt casting machine, and cooling and rolling the alloy lead liquid during the running period of the lead liquid following the rollers in the belt casting machine to obtain an initial aluminum belt; the initial lead belt is required to be thickened, the lead belt is cut and trimmed after the thickness is thickened to obtain a final aluminum belt, and then the final aluminum belt is wound;
a3: stamping, namely placing the final aluminum strip in stamping equipment of a required die to finish stamping work to obtain a qualified grid;
a4: coating plates, assembling, namely mounting coated paper on qualified grids, passing the mounted grids through the plate coating machine, starting an exhaust system and a drying kiln, setting the temperature of the drying kiln, coating the plates on the grids, obtaining polar plates after finishing coating, collecting the polar plates, checking, selecting the polar plates meeting the requirements, conveying the polar plates to a curing chamber for curing and drying, setting technological parameters, and assembling the polar plates after fixed-line drying on a battery to obtain a new polar plate assembled battery.
Preferably, the battery is subjected to performance testing by the following steps,
b1: selecting a new polar plate assembled battery and a common battery for discharge cycle comparison test;
b2: respectively performing cyclic test on the selected new polar plate assembled battery and the common battery;
b3: and obtaining a cyclic test result.
Preferably, the cyclic test step is that,
b1: placing the test battery at an ambient temperature of 25 ℃, controlling the battery to discharge at a constant current of 35A to a final voltage of 9.6V, and recording the discharge time;
b2: after discharging, charging the battery for 12h at a constant voltage of 13.8V and a current limit of 1.0A;
b3: standing the battery for 1h after charging;
b4: b1-b3 commands are one cycle.
Advantageous effects
Compared with the prior art, the invention provides a method for adding the graphene cyclic net punching positive grid of a lead-acid storage battery, which has the following beneficial effects:
the positive plate made of the graphene-containing material has the effect of increasing the corrosion resistance and creep resistance of the battery in the application of the battery, so that the problem of the service life of the battery is solved fundamentally, the grid alloy component is changed by adopting a mode of increasing the graphene, a method is provided for enhancing the cycle performance of the lead-acid battery and prolonging the service life of the battery, and the market competitiveness of enterprises is enhanced.
Drawings
In order to more clearly illustrate the technical solutions of the present embodiments or prior art centers, the following brief description of the drawings, which are required for the description of the embodiments or prior art, will be given:
fig. 1 is a schematic diagram of a positive grid structure of a net-punched plate added with graphene;
FIG. 2 is a grid size representation of the present invention;
FIG. 3 is a schematic view of a single-layer graphene in the present invention;
FIG. 4 is a schematic diagram of the graphene and metal crystals firmly bonded in the present invention;
fig. 5 is a comparative schematic diagram of a battery cycle test in accordance with the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides the following technical solutions:
a method for adding graphene to cyclically punch positive grid of a lead-acid storage battery comprises the following steps:
step one: forming an alloy material, preparing the composite component into the alloy material, obtaining the alloy material containing the graphene component, changing the grid alloy component by adopting a mode of increasing the graphene, providing a method for enhancing the cycle performance of the lead-acid storage battery and prolonging the service life of the storage battery, enhancing the market competitiveness of enterprises, preparing the alloy material through the following steps,
s1, melting lead, namely adding the lead of the total amount of the matched gold into a container, reserving the rest lead ingots to obtain a cooling material, heating the container to melt the lead, placing the lead accounting for 85% -95% of the total amount of the matched gold into a lead melting furnace to heat, and forming a lead liquid after heating and melting, wherein the lead liquid is set as an initial material I, and obtaining the initial material I;
s2, deslagging treatment, namely adding the prepared sodium nitrate and sodium hydroxide into the initial material I in a container at a high temperature, stirring, heating the lead liquid to 600-650 Kg, adding 1-4Kg of sodium nitrate which is one of inorganic salts, and being deliquescent, wherein when the lead liquid is dissolved in water, the solution temperature is reduced, the solution is neutral and has oxidizing property, 4-6Kg of sodium hydroxide is strong corrosive strong alkali, the sodium hydroxide is easy to dissolve in water and forms alkaline solution, and the sodium hydroxide is deliquescent, water vapor in the air is easy to absorb, stirring and mixing the liquid in a lead dissolving furnace for 30min by a stirring tool to obtain a first mixed material, so that the lead liquid is uniformly mixed with the sodium nitrate and the sodium hydroxide, salvaging the lead slag in the first mixed material by a salvaging tool, and setting the rest liquid in the lead dissolving furnace as a second mixed material, thus obtaining the initial material II;
s3, adding graphene, heating and continuously stirring the initial material II, adding the graphene to obtain a mixed material II, and stirring the initial material IIAdding graphene in the middle, continuously stirring the mixed material II to enable the graphene to be fully mixed into the initial material II, setting the stirring time to be 30-60min in total, avoiding the influence of excessive stirring on the liquid temperature, and obtaining the initial material III, wherein the graphene is sp 2 The new material with the hybridized and connected carbon atoms closely stacked into a single-layer two-dimensional honeycomb lattice structure is shown in a graph, wherein the graph is a graphene atom distribution diagram, and when graphene is added into a second mixed material and mixed, the state shown in the graph is obtained, namely, the atomic distribution diagram of firm combination between graphene and metal crystals is obtained, the arrangement mode of the carbon atoms in the graphene is as same as that of a graphite monoatomic layer, bonds are formed through sp hybridization orbits, the graphene has excellent electric conduction and optical properties, is one of materials with highest known strength, has good toughness, and can be bent;
s4, adding calcium, mixing, controlling the temperature of the initial material III, continuously stirring the initial material III, adding a calcium-aluminum alloy to obtain a mixed material III, heating the initial material III to 675 ℃ in a lead dissolving furnace, adding the calcium-aluminum alloy, stirring to enable the calcium-aluminum alloy to fully react with the initial material III, enabling the chemical property of the calcium to be active, enabling the calcium to react with water and acid, generating hydrogen, forming a layer of oxide and nitride film on the surface of the air to prevent the air from being corroded continuously, and almost reducing all metal oxides when the air is heated, and stirring the mixed material III to obtain an initial material IV;
s5, adding tin for mixing, namely adding a reserved lead ingot into the initial material IV, namely, the cooling material in S1, controlling the container to cool, adding the tin ingot which has the property of not being oxidized by air and good spreadability, adding the reserved lead ingot with 5-15%, adding the lead ingot after the temperature of a lead furnace is reduced to 550 ℃, stirring for 20min, so that the tin ingot and the initial material IV are subjected to mixing reaction to obtain a mixed material IV, and stirring the mixed material IV to obtain the initial material V;
s6: sampling and detecting the initial material V, controlling the temperature to be 500-550 ℃ after confirming that the material is qualified, and casting a lead into an ingot to form an alloy material;
step two: manufacturing a polar plate, and processing the manufactured alloy material to obtain a positive plate, wherein the positive plate contains graphene, and the corrosion resistance and creep resistance of the positive plate are improved according to the inherent characteristics of the graphene, so that the problem of the service life of the battery is fundamentally solved;
step three: manufacturing a battery, manufacturing a positive plate into the battery, and then verifying the cycle performance of the battery;
step four: and (3) performing performance test, namely discharging the battery made of the graphene positive plate, performing cycle comparison test with a common battery to obtain a test result, and judging the service performance of the battery made of the graphene positive grid in the embodiment through the comparison test result.
The container in S1 is a lead dissolving furnace, the lead content of the total amount of the gold matched in S1 is 85% -95%, and the cooling material percentage is 5% -15%. The high temperature in S2 is 600-650 ℃, the weights of sodium nitrate and sodium hydroxide are respectively 1-4Kg and 4-6Kg, and the stirring time in S2 is 30min. And heating to 675 ℃ in the step S3, wherein the total stirring time in the step S3 is 30-60min. The temperature is controlled to be 620-650 ℃ in the step S4, and the total stirring time in the step S4 is 15min. The temperature of the container after cooling in S5 is 550 ℃, the stirring time in S5 is 20min, the temperature in S6 is controlled at 500-550 ℃, the synthetic components of the alloy materials are expressed in percentage mode, and the percentage of calcium is 0.04-0.055%; the percentage of tin is 1.5-2.00%; the percentage of aluminum is 0.001-0.05%; the percentage of the graphene material is 0.05-0.10%; the lead content is the residual content in the percentage, and the positive plate made of the graphene-containing material has the effect of increasing the corrosion resistance and creep resistance of the battery in the application of the battery, so that the problem of the service life of the battery is fundamentally solved, the grid alloy component is changed by adopting a mode of increasing the graphene, a method for enhancing the cycle performance of the lead-acid storage battery and prolonging the service life of the storage battery is provided, and the market competitiveness of enterprises is enhanced.
The electrode plate is manufactured on the alloy material through the following steps,
a1: melting alloy, placing the alloy material in a lead melting furnace for heating, and heating the furnace to 500-550 ℃ to obtain alloy lead liquid, and testing the alloy lead liquid;
a2: pouring alloy lead liquid into a belt casting machine, and running the belt casting machine, and cooling and rolling the alloy lead liquid during the running period of the lead liquid following the rollers in the belt casting machine to obtain an initial aluminum belt; the method comprises the steps of carrying out required thickness adjustment on an initial lead belt, cutting and trimming the lead belt after thickness adjustment to obtain a final aluminum belt, then rolling the final aluminum belt, running a belt casting machine, running lead liquid along with rollers, cooling and rolling the lead belt into a belt through the inner structure of the belt casting machine, passing the lead belt through six rough rolling wheels and a fine rolling wheel, adjusting parameters of belt casting equipment, calling out required thickness of the lead belt, cutting and trimming the lead belt through a trimming wheel and a cutter wheel, and then rolling;
a3: the final aluminum strip is placed in stamping equipment of a required die to complete stamping operation, a qualified grid is obtained, the model selection and the dimension setting of the grid are shown in figure 2, the dimension error range is also marked in figure 2, figure 2 is used as one of the dimension requirements of the qualified grid, the shape of the grid made of alloy materials containing graphene materials is shown in figure 1, after the stamping equipment is prepared, a correct template is selected, the lead strip is pulled to a position close to the front end of a first station of the die, and the equipment is started to stamp, so that the qualified grid is manufactured;
a4: coating plates, assembling, namely mounting coated paper on qualified grids, passing the mounted grids through the plate coating machine, starting an exhaust system and a drying kiln, setting the temperature of the drying kiln, coating the plates on the grids, obtaining polar plates after finishing coating, collecting the polar plates, checking, selecting the polar plates meeting the requirements, conveying the polar plates to a curing chamber for curing and drying, setting technological parameters, and assembling the polar plates after fixed-line drying on a battery to obtain a new polar plate assembled battery. And (3) utilizing the positive lead paste with the paste, installing corresponding coated paper, passing the grid through a plate coating machine, starting an air suction system and a drying kiln, setting the temperature of the drying kiln according to the technological requirements, starting to coat the plate, checking whether the polar plate is damaged, deformed and leaked during plate collecting, removing the bad polar plate, conveying the polar plate with the coated plate to a curing chamber for curing and drying, setting technological parameters, and assembling the battery after the end.
The performance of the battery was tested by the following steps,
b1: selecting a new polar plate assembled battery and a common battery for discharge cycle comparison test;
b2: respectively performing cyclic test on the selected new polar plate assembled battery and the common battery;
b3: and obtaining a cyclic test result.
The step of the cyclic test is that,
b1: the testing battery is placed at the environmental temperature of 25 ℃, the lead-acid storage battery added with the graphene cyclic grid punching positive grid and the common battery are tested in the same temperature environment, the testing result is prevented from being influenced by environmental factors, the battery is controlled to discharge at the constant current of 35A to the final voltage of 9.6V, and the discharging time is recorded;
b2: after discharging, charging the battery for 12h at a constant voltage of 13.8V and a current limit of 1.0A;
b3: standing the battery for 1h after charging;
b4: b1-b3 commands are one cycle.
The test results obtained were as follows:
common batteries are cycled 157 times, the first discharge is 06:16, and the last discharge time is 01:00;
the battery containing the graphene grid is recycled 182 times, the first discharge is 05:55, and the last discharge is 01:23.
According to the test result, the service life of the battery containing the graphene grid is longer than that of a common battery, meanwhile, the service life of the battery containing the graphene grid can be prolonged fully through the display of lines in the graph by taking the graph as a comparison graph of the two batteries for cycle test, then an alloy material containing graphene components is obtained, the grid alloy component is changed in a mode of increasing the graphene, the cycle enhancing performance of the lead-acid storage battery is improved, the service life of the storage battery is prolonged, and the market competitiveness of enterprises is enhanced.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A method for adding a graphene cyclic net punching positive grid of a lead-acid storage battery is characterized by comprising the following steps of: the method comprises the following steps:
step one: forming an alloy material, preparing an alloy material from the synthetic components, obtaining an alloy material containing graphene components, preparing the alloy material by the following steps,
s1, melting lead, namely adding the lead in the total amount of the matched gold into a container, reserving the rest lead ingots to obtain a cooling material, and heating the container to melt the lead to obtain an initial material I;
s2, deslagging, namely adding the initial material I in the container with the prepared sodium nitrate and sodium hydroxide at high temperature, stirring, mixing to obtain a mixed material I, and fishing lead slag in the mixed material I to obtain an initial material II;
s3, adding graphene, heating and continuously stirring the initial material II, adding the graphene to obtain a mixed material II, and continuously stirring the mixed material II to obtain an initial material III;
s4, adding calcium for mixing, controlling the temperature of the initial material III, continuously stirring the initial material III, adding the calcium-aluminum alloy to obtain a mixed material III, and stirring the mixed material III to obtain an initial material IV;
s5, adding tin for mixing, namely adding a reserved lead ingot into the initial material IV, controlling the container to be cooled, adding the tin ingot to obtain a mixed material IV, and stirring the mixed material IV to obtain an initial material V;
s6: sampling and detecting the initial material V, controlling the temperature after confirming that the material is qualified, and casting a lead into an ingot to form an alloy material;
step two: manufacturing a polar plate, and processing the manufactured alloy material to obtain a positive plate;
step three: manufacturing a battery, manufacturing a positive plate into the battery, and then verifying the cycle performance of the battery;
step four: and (3) performing performance test, namely discharging a battery made of the graphene positive plate, performing cycle comparison test with a common battery, and obtaining a test result.
2. The method for adding the graphene cyclic net punching positive grid of the lead-acid storage battery according to claim 1, which is characterized by comprising the following steps of: the container in the step S1 is a lead dissolving furnace, the lead content of the total amount of the gold matched in the step S1 is 85% -95%, and the cooling material is 5% -15%.
3. The method for adding the graphene cyclic net punching positive grid of the lead-acid storage battery according to claim 1, which is characterized by comprising the following steps of: the high temperature in the S2 is 600-650 ℃, the weights of the sodium nitrate and the sodium hydroxide are respectively 1-4Kg and 4-6Kg, and the stirring time in the S2 is 30min.
4. The method for adding the graphene cyclic net punching positive grid of the lead-acid storage battery according to claim 1, which is characterized by comprising the following steps of: and heating to 675 ℃ in the step S3, wherein the total stirring time in the step S3 is 30-60min.
5. The method for adding the graphene cyclic net punching positive grid of the lead-acid storage battery according to claim 1, which is characterized by comprising the following steps of: the temperature is controlled to be 620-650 ℃ in the step S4, and the total stirring time in the step S4 is 15min.
6. The method for adding the graphene cyclic net punching positive grid of the lead-acid storage battery according to claim 1, which is characterized by comprising the following steps of: the temperature of the container in the step S5 after the temperature is reduced is 550 ℃, the stirring time of the step S5 is 20min, and the temperature in the step S6 is controlled to be 500-550 ℃.
7. The method for adding the graphene cyclic net punching positive grid of the lead-acid storage battery according to claim 1, which is characterized by comprising the following steps of: the electrode plate is manufactured on the alloy material through the following steps,
a1: melting alloy, placing the alloy material in a lead melting furnace for heating, and heating the furnace to 500-550 ℃ to obtain alloy lead liquid, and testing the alloy lead liquid;
a2: pouring alloy lead liquid into a belt casting machine, and running the belt casting machine, and cooling and rolling the alloy lead liquid during the running period of the lead liquid following the rollers in the belt casting machine to obtain an initial aluminum belt; the initial lead belt is required to be thickened, the lead belt is cut and trimmed after the thickness is thickened to obtain a final aluminum belt, and then the final aluminum belt is wound;
a3: stamping, namely placing the final aluminum strip in stamping equipment of a required die to finish stamping work to obtain a qualified grid;
a4: coating plates, assembling, namely mounting coated paper on qualified grids, passing the mounted grids through the plate coating machine, starting an exhaust system and a drying kiln, setting the temperature of the drying kiln, coating the plates on the grids, obtaining polar plates after finishing coating, collecting the polar plates, checking, selecting the polar plates meeting the requirements, conveying the polar plates to a curing chamber for curing and drying, setting technological parameters, and assembling the polar plates after fixed-line drying on a battery to obtain a new polar plate assembled battery.
8. The method for adding the graphene cyclic net punching positive grid of the lead-acid storage battery according to claim 1, which is characterized by comprising the following steps of: the performance of the battery was tested by the following steps,
b1: selecting a new polar plate assembled battery and a common battery for discharge cycle comparison test;
b2: respectively performing cyclic test on the selected new polar plate assembled battery and the common battery;
b3: and obtaining a cyclic test result.
9. The method for adding the graphene cyclic net punching positive grid of the lead-acid storage battery, which is characterized in that: the step of the cyclic test is that,
b1: placing the test battery at an ambient temperature of 25 ℃, controlling the battery to discharge at a constant current of 35A to a final voltage of 9.6V, and recording the discharge time;
b2: after discharging, charging the battery for 12h at a constant voltage of 13.8V and a current limit of 1.0A;
b3: standing the battery for 1h after charging;
b4: b1-b3 commands are one cycle.
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