CN111403825A - Method for manufacturing lead-acid storage battery - Google Patents
Method for manufacturing lead-acid storage battery Download PDFInfo
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- CN111403825A CN111403825A CN202010061858.4A CN202010061858A CN111403825A CN 111403825 A CN111403825 A CN 111403825A CN 202010061858 A CN202010061858 A CN 202010061858A CN 111403825 A CN111403825 A CN 111403825A
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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
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a method for manufacturing a storage battery, which comprises the following steps: step 1: adding a first-density sulfuric acid solution into a lead-acid storage battery, wherein the density of the first-density sulfuric acid solution is 1.04 g/cm 3-1.28 g/cm3, the first-time addition of the low-density sulfuric acid solution is realized by adding the low-density sulfuric acid solution for multiple times, and the volume of the low-density sulfuric acid solution added for the next time is larger than that of the low-density sulfuric acid solution added for the previous time; and 2, electrifying to form the product. The manufacturing method of the storage battery has high production efficiency.
Description
Technical Field
The invention relates to the field of storage batteries.
Background
In the process of manufacturing the conventional lead-acid storage battery, the battery needs to be subjected to container formation, and the container formation method of the conventional battery has high acid addition density and is implemented by adding acid once, so that the acid addition formation efficiency is low, and the manufacturing efficiency of the lead-acid storage battery is low.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for manufacturing a storage battery, which comprises the following steps: step 1: adding a first-density sulfuric acid solution into a lead-acid storage battery, wherein the density of the first-density sulfuric acid solution is 1.04 g/cm 3-1.28 g/cm3, the first-time addition of the low-density sulfuric acid solution is realized by adding the low-density sulfuric acid solution for multiple times, and the volume of the low-density sulfuric acid solution added for the next time is larger than that of the low-density sulfuric acid solution added for the previous time; and 2, electrifying to form the product.
Further, step 3, adding a second-density sulfuric acid solution into the lead-acid storage battery, wherein the density of the second-density sulfuric acid solution is 1.25-1.6 g/cm3, the second-time addition of the high-density sulfuric acid solution is realized by adding the high-density sulfuric acid solution for multiple times, and the volume of the high-density sulfuric acid solution added for the next time is smaller than that of the high-density sulfuric acid solution added for the previous time.
Further, in the step 2, the energization is completed.
Further, the relationship between the volume of the metered second density sulfuric acid solution and the second density sulfuric acid solution is
，V0Is the final sulfuric acid volume, p0Is the final sulfuric acid density, ω0Is the final sulfuric acid mass fraction, V1Is the sulfuric acid volume of the first addition, ρ 1 is the sulfuric acid density of the first addition, ω 1 is the sulfuric acid mass fraction of the first addition, ρ 2 is the sulfuric acid density of the second addition, ω 2 is the sulfuric acid mass fraction of the second addition,
，m0m is the mass of pure sulfuric acid precipitated in the formation process1The loss of quality of the electrolyzed water in the formation process.
The method for manufacturing the storage battery can improve the manufacturing efficiency of the storage battery.
Drawings
FIG. 1 is a schematic view of a lead acid battery acid addition kettle of the present invention;
fig. 2 is another schematic diagram of the lead-acid battery acid adding kettle of the invention.
Detailed Description
The invention is further described with reference to specific examples.
The manufacturing method of the storage battery comprises the following steps: step 1, adding a sulfuric acid solution with a first density into a lead-acid storage battery to be formed, wherein the first density is preferably 1.04 g/cm 3-1.28 g/cm 3; step 2, electrifying to form; and 3, adding a second density sulfuric acid solution into the battery, wherein the second density is preferably 1.25-1.6 g/cm3 (25 ℃), and the capacity of the formed sulfuric acid solution with the first density is lower, so that the density of the added sulfuric acid solution with the second density is higher than that of the sulfuric acid solution with the first density in order to achieve the required battery capacity, and manufacturers can add the sulfuric acid solutions with the second densities and different volumes according to different use conditions, thereby providing greater convenience for producing batteries with different capacities and different purposes. The density of the added sulfuric acid can be accurately determined, the situation that the added density is too low to reach the capacity and the energy is wasted due to too high density is avoided, and the production efficiency in the production process is improved. In addition, the conversion rate of the lead dioxide at the end of the electrified formation in the step 2 is between 75 and 92 percent, and the sulfuric acid is added in the step 3. The first addition of the low-density sulfuric acid solution can be 1 addition of the low-density sulfuric acid solution or multiple additions of the low-density sulfuric acid solution, and when the low-density sulfuric acid solution is added multiple times, the volume of the low-density sulfuric acid solution added at the next time is preferably larger than that of the low-density sulfuric acid solution added at the previous time. The second addition of the high-density sulfuric acid solution can be 1 addition of the high-density sulfuric acid solution or multiple additions of the high-density sulfuric acid solution, and when the high-density sulfuric acid solution is added multiple times, the volume of the high-density sulfuric acid solution added at the next time is preferably smaller than that of the high-density sulfuric acid solution added at the previous time.
Example 1
The semi-finished product of the battery with 6-DZF-20 glue sealed off line is taken, the method is adopted for acid addition and formation, and the sample preparation process is as follows:
1) adding acid for the first time, namely adding a sulfuric acid solution with the first density of 1.07g/cm3 into the lead storage battery to be added with acid for 140ml, wherein the acid can be added for multiple times, namely 60ml for the first time and 80ml for the next time. And adding acid by using a vacuum acid adding machine.
2) And (3) placing the battery subjected to the first acid adding in a water bath, connecting a charging wire clamp, starting a charger, and performing the process according to the process in the table 1.
TABLE 16-DZF-20 Process
| Step (ii) of | Means for | Current (A) | Time (h) | Electric quantity (Ah) |
| 1 | Charging of electricity | 0.4 | 0.5 | 0.2 |
| 2 | Charging of electricity | 0.8 | 0.5 | 0.4 |
| 3 | Charging of electricity | 1.6 | 0.5 | 0.8 |
| 4 | Charging of |
3 | 0.5 | 1.5 |
| 5 | Charging of electricity | 3.5 | 0.875 | 3.0625 |
| 6 | Charging of |
4 | 14 | 56 |
| 7 | Charging of |
3 | 2.88 | 8.64 |
| 8 | Charging of electricity | 6.3 | 8.94 | 56.322 |
| 9 | Standing still | Standing for 1 |
1 | |
| 10 | Charging of electricity | 5.7 | 2.2 | 12.54 |
| 11 | Standing still | Standing for 1 |
1 | |
| 12 | Charging of electricity | 5.1 | 2.5 | 12.75 |
3) And (5) when the formation is finished and the charge capacity reaches 126Ah, and the content of PbO2 reaches about 88%, completely forming, namely completely forming, and finishing the conversion of the basic lead sulfate and the lead oxide. The battery capacity at this time was 4 AH.
4) To achieve a battery with a battery capacity of 20AH, a second density of acid used only as an energy material was initially added to the battery. The density and volume of the second addition of acid were calculated as follows:
a. according to the design capacity of the battery, the final volume V of sulfuric acid for the design of the battery is determined0=167.69ml, increased volume V after acidificationt=161.13ml, final sulfuric acid density ρ0=1.360 g/cm3, and the mass fraction ω of sulfuric acid is found from a comparison table of sulfuric acid density and mass fraction0=45.3%；
b. The mass of pure sulfuric acid introduced into the lead plaster in the plaster mixing process and separated out in the formation process is m0=16.49g；
c. Volume V of sulfuric acid of the first addition1=140ml, sulfuric acid density ρ1=1.07 g/cm3 and mass fraction ω1= 9.3%; d. loss mass m of electrolyzed water in formation process1=30g；
e. The mass fraction of the sulfuric acid added for the second time is as follows:
finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid2Corresponding density ρ2=1.65 g/cm3
f. The volume of the second addition of sulfuric acid was:
=60ml
the acid can be added in multiple times, 40ml for the first time and 20ml for the second time.
The addition of the acid at the second density to the cell is initiated. Acid is added by adopting an acid adding machine, and acid liquor is added into an acid adding kettle capable of quantitatively storing the acid liquor. And connecting an acid adding kettle with a battery injection hole, and quantitatively injecting acid liquid with a second density into the battery, wherein the acid density of the second density is 1.65g/cm3, and the adding amount of the acid with the second density is 60 ml. After the acid addition was complete, the procedure of Table 1 was continued.
5) Acid extraction is avoided after the formation is finished.
Example 2
The semi-finished product of the battery with 6-DZF-20 glue sealed off line is taken, the method is adopted for acid addition and formation, and the sample preparation process is as follows:
1) adding acid for the first time, namely adding a sulfuric acid solution with a first density and a density of 1.17g/cm3 into the lead storage battery to be added, wherein the acid volume is 145ml, and the acid can be added for multiple times, namely 60ml for the first time and 85ml for the next time. And adding acid by using a vacuum acid adding machine.
2) And (3) placing the battery subjected to the first acid addition in a water bath, connecting a charging wire clamp, starting a charger, and performing the process according to the process 1 in the table.
3) And (3) when the formation is finished and the charge amount reaches 126Ah, and the content of PbO2 reaches about 81 percent, partially forming, namely incomplete conversion of basic lead sulfate and lead oxide. The battery capacity at this time was 6 AH.
4) To achieve a cell capacity of 20AH, a second density of acid is initially added to the cell. The density and volume of the second addition of acid were calculated as follows:
a. according to the design capacity of the battery, the final volume V of sulfuric acid for the design of the battery is determined0=167.69ml, increased volume V after acidificationt=161.13ml, final sulfuric acid density ρ0=1.360 g/cm3, and the mass fraction ω of sulfuric acid is found from a comparison table of sulfuric acid density and mass fraction0=45.3%；
b. The mass of pure sulfuric acid introduced into the lead plaster in the plaster mixing process and separated out in the formation process is m0=16.49g；
c. Volume V of sulfuric acid of the first addition1=145ml, sulfuric acid density ρ1=1.17 g/cm3 and mass fraction ω1= 22.9%; d. loss mass m of electrolyzed water in formation process1=30g；
e. The mass fraction of the sulfuric acid added for the second time is as follows:
finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid2Corresponding density ρ2=1.50 g/cm3
f. The volume of the second addition of sulfuric acid was:
the acid can be added in multiple times, 30ml for the first time and 23ml for the last time.
And adding acid with the second density into the battery, adding the acid by using an acid adding machine, and adding the acid into an acid adding pot capable of quantitatively storing the acid. And connecting the acid adding kettle with the battery liquid injection hole, and quantitatively injecting acid liquid with a second density into the battery. The second density acid had a density of 1.50g/cm3 and 53ml of the second density acid was added. After the acid addition was complete, the procedure of Table 1 was continued.
5) Acid extraction is avoided after the formation is finished.
Example 3
The semi-finished product of the battery with 6-DZF-20 glue sealed off line is taken, the method is adopted for acid addition and formation, and the sample preparation process is as follows:
1) adding acid for the first time, namely adding a sulfuric acid solution with the first density of 1.28g/cm3 into the lead storage battery to be added with acid for the first time, wherein the acid adding volume is 155ml, and the acid can be added for multiple times, namely 60ml for the first time and 95ml for the last time. And adding acid by using a vacuum acid adding machine.
2) And (3) placing the battery subjected to the first acid adding in a water bath, connecting a charging wire clamp, starting a charger, and performing the process according to the process in the table 1.
3) And (5) when the formation is finished and the charge amount reaches 126Ah, and the content of PbO2 reaches about 77%, partially forming, namely, the conversion of basic lead sulfate and lead oxide is not finished. At this time, the battery capacity is 13 AH.
4) To achieve a cell capacity of 20AH, a second density of acid is initially added to the cell. The density and volume of the second addition of acid were calculated as follows:
a. according to the design capacity of the battery, the final volume V of sulfuric acid for the design of the battery is determined0=167.69ml, increased volume V after acidificationt=161.13ml, final sulfuric acid density ρ0=1.360 g/cm3, and the mass fraction ω of sulfuric acid is found from a comparison table of sulfuric acid density and mass fraction0=45.3%；
b. The mass of pure sulfuric acid introduced into the lead plaster in the plaster mixing process and separated out in the formation process is m0=16.49g；
c. Volume V of sulfuric acid of the first addition1=155ml, sulfuric acid density ρ1=1.28 g/cm3 and mass fraction ω1= 36.4%; d. loss mass m of electrolyzed water in formation process1=30g；
e. The mass fraction of the sulfuric acid added for the second time is as follows:
finding out the mass fraction omega of the sulfuric acid according to the comparison table of the density and the mass fraction of the sulfuric acid2Corresponding density ρ2=1.21 g/cm3
f. The volume of the second addition of sulfuric acid was:
=42ml
the acid can be added in multiple times, 32ml for the first time and 10ml for the second time.
And adding acid with the second density into the battery, adding the acid by using an acid adding machine, and adding the acid into an acid adding kettle capable of quantitatively storing the acid. And connecting the acid adding kettle with the battery liquid injection hole, and quantitatively injecting acid liquid with a second density into the battery. The second density acid had a density of 1.21g/cm3 and was added in an amount of 42ml of the second density acid. After the acid addition was complete, the procedure of Table 1 was continued.
5) Acid extraction is avoided after the formation is finished.
The invention relates to a method for manufacturing a storage battery, wherein the step 3 of adding a second-density sulfuric acid solution can be performed by an acid adding pot capable of storing a certain amount of acid liquor, as shown in figures 1 and 2, the invention provides the acid adding pot, which comprises a pot body 1, wherein the upper part of the pot body is provided with an acid injection port 4, the lower part of the acid injection port 4 is connected with a leakage-proof valve 5, and the upper part in the leakage-proof valve 5 is provided with a sealing piece, such as: the rubber seals the valve body 9, and the lower part is provided with an elastomer, such as a rubber marble 10. When acid is injected into the kettle body 1, the acid liquor is connected with the acid injection port 4 through the acid injection nozzle of the acid adding machine and presses the rubber sealing valve body 9 downwards, so that the rubber ball 10 is extruded and deformed, a gap is formed between the rubber sealing valve body 9 and the top cover of the kettle body 1, and the acid liquor is injected into the kettle body 1. After the acid adding is finished, the acid injection nozzle of the acid adding machine is removed, the rubber marble 10 recovers deformation, the rubber sealing valve body 9 is jacked up to realize sealing with the top cover of the kettle body 1, and the acid liquor is stored in the kettle body 1. The lower part of the kettle body 1 is provided with a rubber acid discharge port 7, a pull rod drain valve 6 is arranged in the kettle body 1 and can move up and down, the lower end of the pull rod drain valve 6 seals the kettle body 1 through a sealing rubber ring 11 arranged in the lower part of the kettle body 1, and the upper end of the pull rod drain valve 6 penetrates through an opening in the upper end of the kettle body 1 and seals the kettle body 1 through a sealing rubber ring 8 arranged in the opening. The top ends of a plurality of pull rod drain valves 6 are connected through a cross rod 2, and a travel limit sleeve 3 is arranged to limit the linear movement of the pull rod drain valves 6, and the travel limit sleeve 3 is fixed on the kettle body 1. When acid liquor is discharged from the kettle body 1, the rubber acid discharge port 5 is connected to an acid injection nozzle on the top of a common acid adding kettle or an acid injection nozzle of a battery middle cover, the pull rod drain valve 6 is pulled upwards, the lower end is separated from the sealing rubber ring 11, and the acid liquor is discharged. After acid is discharged, the pull rod drain valve 6 is pressed downwards, so that the lower end of the pull rod is sealed with the sealing rubber ring 11, and acid can be repeatedly injected into the kettle body 1. In this embodiment, the pull rod type drain valve 6 moves linearly, and may rotate as necessary, or other ways to seal and open the drain opening may be implemented. The pot body 1 of the invention can be arranged into a plurality of bodies according to the requirement.
The acid adding kettle provided by the invention can store acid liquor quantitatively, and can be applied to the process of formation and quantitative acid addition of a lead-acid storage battery. Quantitatively adding part of acid liquor into the acid adding kettle by using an acid adding machine, and hermetically storing and transferring the acid liquor in the kettle. During or after the formation process, the acid adding kettle is sleeved on a battery according to the process requirements, and acid liquor stored in the kettle is added into the battery to realize quantitative acid addition, so that acid pumping can be avoided, and the required capacity after formation can be realized by selecting proper sulfuric acid density.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (4)
1. A method for manufacturing a lead-acid battery, characterized by comprising the steps of: step 1: adding a first-density sulfuric acid solution into a lead-acid storage battery, wherein the density of the first-density sulfuric acid solution is 1.04 g/cm 3-1.28 g/cm3, the first-time addition of the low-density sulfuric acid solution is realized by adding the low-density sulfuric acid solution for multiple times, and the volume of the low-density sulfuric acid solution added for the next time is larger than that of the low-density sulfuric acid solution added for the previous time; and 2, electrifying to form the product.
2. The method for manufacturing a lead-acid storage battery according to claim 1, wherein in step 3, a second-density sulfuric acid solution is added into the lead-acid storage battery, the density of the second-density sulfuric acid solution is 1.25-1.6 g/cm3, the second addition of the high-density sulfuric acid solution is a plurality of additions of the high-density sulfuric acid solution, and the volume of the high-density sulfuric acid solution added in the latter time is smaller than that of the high-density sulfuric acid solution added in the former time.
3. The method according to claim 2, wherein in step 2, the energization is complete.
4. A method for manufacturing a lead-acid battery according to any of claims 1 to 3, characterized in that the volume of the dosed sulfuric acid solution of second density is related to the sulfuric acid solution of second density
，V0Is the final sulfuric acid volume, p0Is the final sulfuric acid density, ω0Is the final sulfuric acid mass fraction, V1Is the volume of sulfuric acid added for the first time, p1Is the sulfuric acid density, omega, of the first addition of acid1Is the mass fraction of sulfuric acid of the first addition of acid, rho2Is the sulfuric acid density, omega, of the second addition of acid2Is the mass fraction of the sulfuric acid added for the second time,
，m0m is the mass of pure sulfuric acid precipitated in the formation process1The loss of quality of the electrolyzed water in the formation process.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394523A (en) * | 2021-05-21 | 2021-09-14 | 天能电池集团股份有限公司 | Acid adding and formation method for lead storage battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002216839A (en) * | 2001-01-17 | 2002-08-02 | Furukawa Battery Co Ltd:The | Battery container chemical treatment method of lead storage battery |
| CN107742749A (en) * | 2017-10-31 | 2018-02-27 | 陕西凌云蓄电池有限公司 | A kind of acid-adding method of valve-control sealed lead acid battery |
| CN109148815A (en) * | 2018-07-18 | 2019-01-04 | 天能电池集团有限公司 | A kind of long-life lead storage battery acid adding chemical synthesizing method |
-
2020
- 2020-01-19 CN CN202010061858.4A patent/CN111403825A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002216839A (en) * | 2001-01-17 | 2002-08-02 | Furukawa Battery Co Ltd:The | Battery container chemical treatment method of lead storage battery |
| CN107742749A (en) * | 2017-10-31 | 2018-02-27 | 陕西凌云蓄电池有限公司 | A kind of acid-adding method of valve-control sealed lead acid battery |
| CN109148815A (en) * | 2018-07-18 | 2019-01-04 | 天能电池集团有限公司 | A kind of long-life lead storage battery acid adding chemical synthesizing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394523A (en) * | 2021-05-21 | 2021-09-14 | 天能电池集团股份有限公司 | Acid adding and formation method for lead storage battery |
| CN113394523B (en) * | 2021-05-21 | 2022-09-20 | 天能电池集团股份有限公司 | Acid adding and formation method for lead storage battery |
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