CN113937434A - Segmented acid adding process for lead-acid storage battery - Google Patents
Segmented acid adding process for lead-acid storage battery Download PDFInfo
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- CN113937434A CN113937434A CN202111184836.8A CN202111184836A CN113937434A CN 113937434 A CN113937434 A CN 113937434A CN 202111184836 A CN202111184836 A CN 202111184836A CN 113937434 A CN113937434 A CN 113937434A
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- acid
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- kettle
- vacuumizing
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- 239000002253 acid Substances 0.000 title claims abstract description 282
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005086 pumping Methods 0.000 claims abstract description 26
- 230000001502 supplementing effect Effects 0.000 claims abstract description 7
- 238000000605 extraction Methods 0.000 claims description 2
- 230000009469 supplementation Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/618—Pressure control
-
- 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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a sectional type acid adding process for a lead-acid storage battery, and relates to the technical field of storage battery production. The invention comprises the following steps: placing an acid adding kettle; step two: adding acid for one time, wherein the acid adding amount for one time is 30-40% of the total acid adding amount; step three: primary vacuum pumping; step four: adding acid for the second time, wherein the acid adding amount for the second time is 30-40% of the total acid adding amount; step five: secondary vacuum pumping; step six: adding acid for three times, wherein the acid adding amount for three times is 30-40% of the total acid adding amount; step seven: vacuumizing for three times; step eight: and (4) extracting residual acid from the acid adding kettle after the three times of vacuumizing, or supplementing acid liquor, and charging the storage battery after the completion. The invention carries out three times of acid addition and vacuum-pumping on the storage battery by a sectional acid addition mode, solves the problems that the center of the polar plate is not thoroughly soaked and the overall performance of the storage battery is influenced because the existing one-time acid addition is easy, and simultaneously greatly shortens the vacuum-pumping time because the acid addition amount is less each time, thereby being beneficial to improving the overall production efficiency.
Description
Technical Field
The invention belongs to the technical field of storage battery production, and particularly relates to a sectional type acid adding process for a lead-acid storage battery.
Background
Sulfuric acid is an important component of lead-acid batteries, and plays a decisive role in the performance of lead-acid batteries. At present, most of lead-acid storage batteries are matched with a vacuumizing mode in the acid adding process so as to achieve the purpose that the center of a pole group can be effectively infiltrated by electrolyte.
However, when acid is injected into a large-density battery, the area of the plate is large, the central pressure of the plate group is large, so that acid liquid needs to be gradually infiltrated and reacted from the edge area of the plate to the central area of the plate, and when acid is added at one time, incomplete infiltration of the center of the plate is easily caused, so that the overall performance of the battery is affected, or long infiltration and reaction time is needed, so that the overall production efficiency is affected.
Disclosure of Invention
The invention aims to provide a segmented acid adding process for a lead-acid storage battery, which solves the problems that the center of a polar plate is not thoroughly soaked and the overall performance and the overall production efficiency of the storage battery are affected due to the fact that the conventional one-time acid adding is carried out by carrying out acid adding and vacuumizing on the storage battery for three times.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a sectional type acid adding process for a lead-acid storage battery, which comprises the following steps:
the method comprises the following steps: placing an acid adding kettle; before adding acid, manually placing an acid adding kettle on a storage battery to be added with acid;
step two: adding acid for the first time; positioning the acid adding kettle through acid adding equipment, and adding acid liquor into the acid adding kettle; wherein, the acid adding amount for one time is 30 to 40 percent of the total acid adding amount;
step three: primary vacuum pumping; vacuumizing the acid adding kettle through vacuumizing equipment to enable the acid adding kettle and the storage battery to generate negative pressure;
step four: adding acid for the second time; filling acid liquor into the acid kettle after primary vacuum pumping through acid adding equipment; wherein, the secondary acid adding amount is 30 to 40 percent of the total acid adding amount;
step five: secondary vacuum pumping; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment to enable the acid adding kettle and the storage battery to generate negative pressure;
step six: adding acid for three times; adding acid liquor into the acid kettle after secondary vacuum pumping through acid adding equipment; wherein, the acid adding amount for the third time is 30 to 40 percent of the total acid adding amount;
step seven: vacuumizing for three times; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment to enable the acid adding kettle and the storage battery to generate negative pressure;
step eight: and (4) extracting residual acid from the acid adding kettle after the three times of vacuumizing, or supplementing acid liquor, and charging the storage battery after the completion.
Further, the acid liquor injected in the second step, the fourth step and the sixth step has the density of 1.250-1.270 g/ml at normal temperature.
Further, in the third step, the fifth step and the seventh step, the maximum negative pressure value is less than or equal to-0.085 MPa after vacuumizing.
Furthermore, in the step eight, after residual acid is extracted or acid liquor is supplemented, 3ml to 5ml of residual acid is left in each unit cell of the acid adding kettle.
Further, the vacuumizing time in the third step, the fifth step and the seventh step is 5-10 seconds.
Further, the vacuumizing time in the third step, the fifth step and the seventh step is 6-8 seconds.
The invention has the following beneficial effects:
the total acid adding amount of the storage battery is added for three times, and the vacuum pumping is performed after each time of adding, so that the infiltration effect of the center of the polar plate is effectively improved, the condition that the center of the polar plate is not infiltrated completely due to one-time adding is avoided, and the overall performance of the storage battery is effectively ensured. Meanwhile, the acid adding amount is less each time, so that the vacuumizing time is greatly shortened, and the integral production efficiency is favorably improved.
And the three-time segmented acid addition is adopted, so that the situation that the acid liquor reacts from the peripheral area of the polar plate at first and then gradually reacts towards the central area of the polar plate due to one-time acid addition is effectively avoided, and the high-concentration acid liquor in the edge area of the polar plate gradually reacts with lead oxide to cause the concentration of the acid liquor reaching the central area of the polar plate to be lower and lower, so that the active position of the central area of the polar plate is poor, and the service life and the performance of the battery are seriously influenced.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a sectional type acid adding process for a lead-acid storage battery according to the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention is a sectional type acid adding process for lead-acid battery, comprising the following steps:
the method comprises the following steps: placing an acid adding kettle; before adding acid, manually placing an acid adding kettle on a storage battery to be added with acid;
step two: adding acid for the first time; positioning the acid adding kettle through acid adding equipment, and adding acid liquor into the acid adding kettle; wherein the acid adding amount at one time is 30% of the total acid adding amount, the density of the acid solution added is 1.270g/ml at normal temperature, and the acid adding temperature is normal temperature, such as 25 deg.C.
Step three: primary vacuum pumping; vacuumizing the acid adding kettle through vacuumizing equipment, so that negative pressure is generated inside the acid adding kettle and the storage battery, the maximum negative pressure value is less than or equal to-0.085 Mpa, and the vacuumizing time is 5-10 seconds, particularly 6 seconds.
Step four: adding acid for the second time; filling acid liquor into the acid kettle after primary vacuum pumping through acid adding equipment; wherein, the secondary acid adding amount is 30% of the total acid adding amount, and the density of the added acid solution at normal temperature can be the same as that in the second step, and is 1.270g/ml, preferably 1.260 g/ml.
Step five: secondary vacuum pumping; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment to generate negative pressure inside the acid adding kettle and the storage battery, wherein the maximum negative pressure value is less than or equal to-0.1 Mpa, and the vacuumizing time is 6 seconds.
Step six: adding acid for three times; adding acid liquor into the acid kettle after secondary vacuum pumping through acid adding equipment; wherein, the acid adding amount for the third time is 40% of the total acid adding amount, and the density of the added acid solution at normal temperature can be the same as that in the second step or the fourth step, and is 1.270g/ml or 1.260g/ml, and is preferably 1.250 g/ml. The primary acid adding adopts acid liquor with larger density, namely the acid liquor has the density of 1.270g/ml, the secondary acid adding and the tertiary acid adding adopt acid liquor with smaller density, namely 1.260g/ml or 1.250g/ml, so that the primary acid adding adopts high-density acid liquor, the acid liquor can still keep a certain concentration when reaching the center of the polar plate after the reaction at the periphery of the polar plate, and the secondary acid adding and the tertiary acid adding adopt low-density acid liquor for secondary adding, so that the concentration of the acid liquor is kept stable as a whole.
Step seven: vacuumizing for three times; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment to generate negative pressure inside the acid adding kettle and the storage battery, wherein the maximum negative pressure value is less than or equal to-0.120 Mpa, and the vacuumizing time is 6 seconds.
The maximum negative pressure value of the three times of vacuum pumping can be set to be the same, or the vacuum degree is increased along with the increase of the acid adding amount as shown in the embodiment, so that the acid liquor can fully infiltrate the center of the polar plate.
Step eight: and (4) extracting residual acid from the acid adding kettle after the three times of vacuumizing, or supplementing acid liquor, and charging the storage battery after the completion. After the residual acid is extracted or the acid liquor is supplemented, 3-5 ml of residual acid is left in each unit cell of the acid adding kettle, if the residual acid amount is 3ml, the acid liquor amount to be added is based on the acid absorption amount of each type of battery, and the sufficient acid liquor in the storage battery can be ensured by combining the difference of environmental temperatures in different seasons and the required volatilization amount in the acid adding process.
Example two
The invention relates to a sectional type acid adding process for a lead-acid storage battery, which comprises the following steps:
the method comprises the following steps: placing an acid adding kettle; before adding acid, manually placing an acid adding kettle on a storage battery to be added with acid;
step two: adding acid for the first time; positioning the acid adding kettle through acid adding equipment, and adding acid liquor into the acid adding kettle; wherein the acid adding amount at one time is 35% of the total acid adding amount, and the density of the added acid solution is 1.270g/ml at normal temperature.
Step three: primary vacuum pumping; vacuumizing the acid adding kettle through vacuumizing equipment, so that negative pressure is generated inside the acid adding kettle and the storage battery, the maximum negative pressure value is less than or equal to-0.085 Mpa, and the vacuumizing time is 5-10 seconds, particularly 7 seconds.
Step four: adding acid for the second time; filling acid liquor into the acid kettle after primary vacuum pumping through acid adding equipment; wherein the secondary acid adding amount is 35% of the total acid adding amount, and the density at normal temperature is 1.270 g/ml.
Step five: secondary vacuum pumping; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment, so that negative pressure is generated inside the acid adding kettle and the storage battery, and the vacuumizing time is 7 seconds.
Step six: adding acid for three times; adding acid liquor into the acid kettle after secondary vacuum pumping through acid adding equipment; wherein the acid adding amount for three times is 30% of the total acid adding amount, and the density at normal temperature is 1.270 g/ml.
Step seven: vacuumizing for three times; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment, so that negative pressure is generated inside the acid adding kettle and the storage battery, and the vacuumizing time is 7 seconds.
Step eight: and (4) extracting residual acid from the acid adding kettle after the three times of vacuumizing, or supplementing acid liquor, and charging the storage battery after the completion. Wherein, after extracting the residual acid or supplementing the acid liquor, 5ml of residual acid is left in each single cell of the acid adding kettle.
EXAMPLE III
The invention relates to a sectional type acid adding process for a lead-acid storage battery, which comprises the following steps:
the method comprises the following steps: placing an acid adding kettle; before adding acid, manually placing an acid adding kettle on a storage battery to be added with acid;
step two: adding acid for the first time; positioning the acid adding kettle through acid adding equipment, and adding acid liquor into the acid adding kettle; wherein, the acid adding amount at one time is 40 percent of the total acid adding amount;
step three: primary vacuum pumping; vacuumizing the acid adding kettle through vacuumizing equipment to enable the acid adding kettle and the storage battery to generate negative pressure;
step four: adding acid for the second time; filling acid liquor into the acid kettle after primary vacuum pumping through acid adding equipment; wherein the secondary acid adding amount is 30% of the total acid adding amount, and the density at normal temperature is 1.260 g/ml.
Step five: secondary vacuum pumping; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment, so that negative pressure is generated inside the acid adding kettle and the storage battery, and the vacuumizing time is 8 seconds.
Step six: adding acid for three times; adding acid liquor into the acid kettle after secondary vacuum pumping through acid adding equipment; wherein the acid adding amount for three times is 30% of the total acid adding amount, and the density at normal temperature is 1.260 g/ml.
Step seven: vacuumizing for three times; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment, so that negative pressure is generated inside the acid adding kettle and the storage battery, and the vacuumizing time is 8 seconds.
Step eight: and (4) extracting residual acid from the acid adding kettle after the three times of vacuumizing, or supplementing acid liquor, and charging the storage battery after the completion. Wherein 4ml of residual acid is left in each single cell of the acid adding kettle after residual acid extraction or acid liquor supplementation.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A segmented acid adding process for a lead-acid storage battery is characterized by comprising the following steps:
the method comprises the following steps: placing an acid adding kettle; before adding acid, manually placing an acid adding kettle on a storage battery to be added with acid;
step two: adding acid for the first time; positioning the acid adding kettle through acid adding equipment, and adding acid liquor into the acid adding kettle; wherein, the acid adding amount for one time is 30 to 40 percent of the total acid adding amount;
step three: primary vacuum pumping; vacuumizing the acid adding kettle through vacuumizing equipment to enable the acid adding kettle and the storage battery to generate negative pressure;
step four: adding acid for the second time; filling acid liquor into the acid kettle after primary vacuum pumping through acid adding equipment; wherein, the secondary acid adding amount is 30 to 40 percent of the total acid adding amount;
step five: secondary vacuum pumping; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment to enable the acid adding kettle and the storage battery to generate negative pressure;
step six: adding acid for three times; adding acid liquor into the acid kettle after secondary vacuum pumping through acid adding equipment; wherein, the acid adding amount for the third time is 30 to 40 percent of the total acid adding amount;
step seven: vacuumizing for three times; vacuumizing the acid adding kettle after secondary acid adding through vacuumizing equipment to enable the acid adding kettle and the storage battery to generate negative pressure;
step eight: and (4) extracting residual acid from the acid adding kettle after the three times of vacuumizing, or supplementing acid liquor, and charging the storage battery after the completion.
2. The segmented acid adding process for the lead-acid storage battery according to claim 1, wherein the acid solution added in the second step, the fourth step and the sixth step has a density of 1.250g/ml to 1.270g/ml at normal temperature.
3. The segmented acid adding process for the lead-acid storage battery according to claim 1, wherein the maximum negative pressure value of vacuumizing in the third step, the fifth step and the seventh step is less than or equal to-0.085 MPa.
4. The segmented acid adding process for the lead-acid storage battery according to claim 1, wherein in the step eight, after residual acid extraction or acid liquor supplementation is carried out, 3ml to 5ml of residual acid is left in each unit cell of the acid adding kettle.
5. The segmented acid adding process for the lead-acid storage battery as claimed in claim 1 or 3, wherein the vacuumizing time in the third step, the fifth step and the seventh step is 5-10 seconds.
6. The segmented acid adding process for the lead-acid storage battery as claimed in claim 5, wherein the vacuumizing time in the third step, the fifth step and the seventh step is 6-8 seconds.
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| CN202111184836.8A CN113937434A (en) | 2021-10-12 | 2021-10-12 | Segmented acid adding process for lead-acid storage battery |
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| CN202111184836.8A CN113937434A (en) | 2021-10-12 | 2021-10-12 | Segmented acid adding process for lead-acid storage battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295977A (en) * | 2022-08-05 | 2022-11-04 | 风帆有限责任公司 | Acid filling method for start-stop AGM battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709515A (en) * | 2012-06-18 | 2012-10-03 | 江苏理士电池有限公司 | Acid filling method of lead-acid storage battery |
| CN110504495A (en) * | 2019-08-12 | 2019-11-26 | 天能电池集团股份有限公司 | A kind of acid adding chemical synthesizing method of battery |
| 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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2021
- 2021-10-12 CN CN202111184836.8A patent/CN113937434A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709515A (en) * | 2012-06-18 | 2012-10-03 | 江苏理士电池有限公司 | Acid filling method of lead-acid storage battery |
| CN110504495A (en) * | 2019-08-12 | 2019-11-26 | 天能电池集团股份有限公司 | A kind of acid adding chemical synthesizing method of battery |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295977A (en) * | 2022-08-05 | 2022-11-04 | 风帆有限责任公司 | Acid filling method for start-stop AGM battery |
| CN115295977B (en) * | 2022-08-05 | 2024-05-17 | 风帆有限责任公司 | Acid filling method for AGM battery during start-stop operation |
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