CN108365159B - Horizontal battery acid filling method - Google Patents
Horizontal battery acid filling method Download PDFInfo
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- CN108365159B CN108365159B CN201711449400.0A CN201711449400A CN108365159B CN 108365159 B CN108365159 B CN 108365159B CN 201711449400 A CN201711449400 A CN 201711449400A CN 108365159 B CN108365159 B CN 108365159B
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- 238000011049 filling Methods 0.000 title claims abstract description 62
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003792 electrolyte Substances 0.000 claims abstract description 81
- 239000002253 acid Substances 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 239000006185 dispersion Substances 0.000 claims abstract description 31
- 238000010521 absorption reaction Methods 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 239000012153 distilled water Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 239000012173 sealing wax Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001993 wax Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 10
- 239000011229 interlayer Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
-
- 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
-
- 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
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
-
- 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
- H01M50/691—Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
-
- 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)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention belongs to the technical field of batteries, and particularly relates to a horizontal battery acid filling methodThe method comprises the following steps: step one, preparing electrolyte: adding pure sulfuric acid into distilled water, and mixing to obtain the product with the concentration of 1.2-1.3 g/cm3The electrolyte of (1); step two, vacuumizing the battery: air in the battery is pumped out by using air pumping equipment; step three, acid filling: putting the electrolyte in the step one into an electrolyte box, then guiding the electrolyte to a liquid dispersion part by using an acid filling pipe while stirring, and throwing the electrolyte out of the battery by rotating the liquid dispersion part; step four, acid absorption: sucking out the redundant electrolyte in the battery by using the liquid dispersion part in the third step, and recycling the redundant electrolyte into an electrolyte box through an acid absorption mechanism; step five, sealing wax: the acid filling port of the cell was sealed with wax. The scheme can discharge the redundant electrolyte entering the battery during acid filling.
Description
Technical Field
The invention belongs to the technical field of batteries, and particularly relates to a horizontal battery acid filling method.
Background
The polar plates of the traditional battery are assembled perpendicular to the ground, and are also assembled perpendicular to the ground when in use. The battery with the structure is easy to generate electrolyte layering phenomenon in the use process; the discharged capacity is relatively more due to high concentration of the sulfuric acid at the lower part of the battery in the discharging process, and the discharged capacity is less due to low concentration of the sulfuric acid at the upper part of the battery; when the battery is charged, the upper part is charged preferentially, the active substance has the tendency of gradually reacting and converting from top to bottom, when the upper part of the battery is in a fully charged state or even an overcharged state, the lower part of the battery is not fully charged, and along with the accumulation of the number of times of cyclic use, the imbalance can form a vicious circle, so that the capacity of the battery is rapidly attenuated, and the service life of the battery is terminated in advance.
In order to solve the above problems, a new type of horizontal battery has been developed in recent years, and the horizontal battery is called a "horizontal battery" because the battery plates are placed horizontally, which is different from the vertical placement of the conventional battery. After the horizontal battery is packaged, the processes of acid filling, formation, curing agent filling, cleaning, packaging and the like are required. In the prior art, when acid is filled, too much electrolyte is often filled into the battery, and the too much electrolyte easily causes the problems of leakage and the like, thereby influencing the normal use of the battery.
Disclosure of Invention
The invention aims to provide a horizontal battery acid filling method which can discharge redundant electrolyte entering a battery during acid filling.
In order to achieve the purpose, the invention provides the following technical scheme that the horizontal battery acid filling method comprises the following steps:
step one, preparing electrolyte: adding pure sulfuric acid into distilled water, and mixing to obtain the product with the concentration of 1.2-1.3 g/cm3The electrolyte of (1);
step two, vacuumizing the battery: air in the battery is pumped out by using air pumping equipment;
step three, acid filling: putting the electrolyte in the step one into an electrolyte box, then guiding the electrolyte to a liquid dispersion part by using an acid filling pipe while stirring, and throwing the electrolyte out of the battery by rotating the liquid dispersion part;
step four, acid absorption: sucking out the redundant electrolyte in the battery by using the liquid dispersion part in the third step, and recycling the redundant electrolyte into an electrolyte box through an acid absorption mechanism;
step five, sealing wax: the acid filling port of the cell was sealed with wax.
The beneficial effects of the above technical scheme are that:
1. through acid absorption mechanism and liquid dispersion portion with unnecessary electrolyte suction, not only can realize will getting into the unnecessary electrolyte discharge of battery when irritating the acid, but also can retrieve electrolyte, reduce battery cost of manufacture.
2. The electrolyte flowing out of the acid filling pipe is thrown out under the action of centrifugal force generated by rotation of the liquid dispersion part, so that the acid filling is more uniform; and when acid is absorbed, the electrolyte in each area in the battery can be more uniformly absorbed through the inner cavity of the liquid dispersion part.
3. The battery is vacuumized in the second step, so that the internal pressure of the battery can be prevented from being too high, and the electrolyte in the first step can be well absorbed by a polar plate in the battery; in addition, in the third step, the electrolyte is added while stirring, so that the concentration of the electrolyte entering the battery is uniform and consistent, and the battery performance is better.
Preferably, the first preferred scheme is a preferred scheme of the basic scheme, and the temperature of the electrolyte in the first step is 15-25 ℃. Because in the electrolyte preparation process, the temperature of the sulfuric acid is increased by releasing heat, the temperature of the electrolyte is reduced to 15-25 ℃, the acid filling process is safer, and the service life of the battery is prevented from being influenced by overhigh temperature.
Preferably, the second step further comprises detecting whether the vacuum degree of the battery is less than or equal to 0.2MPa by using a vacuum degree detector. This helps to further ensure better electrolyte entry into the cell.
And a third preferred scheme, wherein as a preferred scheme of the basic scheme, the stirring speed of the electrolyte in the third step is 100-150 r/min. The electrolyte is stirred uniformly at this speed.
Preferably, the acid absorption mechanism in the fourth step is communicated with a vacuum pump as a preferred scheme of the first preferred scheme, the second preferred scheme or the third preferred scheme. And the redundant electrolyte in the battery is absorbed in a vacuum absorption mode, so that the efficiency is high.
Preferably, the fifth embodiment is the fourth embodiment: the pumping pressure of the vacuum pump is 50-80 MPa. Under the working pressure, the normal absorption of the electrolyte can be ensured, and other substances in the battery can not be absorbed.
Drawings
FIG. 1 is a schematic structural diagram of an acid absorption mechanism in the horizontal battery acid filling method of the invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a top view of the sliding closure of FIG. 1;
fig. 4 is a sectional view of the acid absorption mechanism during acid filling by the horizontal battery acid filling method of the invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a rack 1, a vacuum pump 2, a motor 3, a driving gear 30, a driven gear ring 31, an electrolyte box 4, a sealing plate 40, a first fixed pipe 5, a second fixed pipe 50, a limiting block 51, a sliding cover 6, a liquid absorption interlayer 60, a square opening 61, a circular through hole 62, a liquid dispersion part 7, a liquid guide pipe 70, a filter screen 71, an inner cylinder cover 8, a rotary ring 80, a first rack 81, an acid filling pipe 9, an inner sleeve 90, an outer sleeve 91, a second rack 92, a rotating gear 93, a shaft seam 94 and an acid filling opening 100.
Example 1
The acid filling method for the horizontal battery comprises the following steps:
step one, preparing electrolyte: adding pure sulfuric acid into distilled water, and mixing to obtain a solution with a concentration of 1.2g/cm3And the temperature of the electrolyte is reduced to 15 ℃.
Step two, vacuumizing the battery: and (3) pumping air in the battery out by using air pumping equipment, detecting whether the vacuum degree of the battery is below 0.2MPa by using a vacuum degree detector, if so, entering the step three, and if not, continuously pumping the vacuum.
Step three, acid filling: filling the electrolyte in the step one into an electrolyte tank 4, then guiding the electrolyte to a liquid dispersion part 7 by using an acid filling pipe 9 while stirring, and throwing the electrolyte out of the battery by rotating the liquid dispersion part 7; the stirring speed of the electrolyte was 100 r/min.
Step four, acid absorption: and (4) sucking out the redundant electrolyte in the battery by using the liquid dispersion part 7 in the third step, and recycling the electrolyte into the electrolyte tank 4 by using an acid absorption mechanism. The mounting structure of the electrolyte tank 4, the acid absorption mechanism, the liquid dispersion part 7 and the acid filling pipe 9 is shown in figure 1: the electrolyte tank 4 is fixed to the frame 1. As shown in fig. 2, the acid absorbing mechanism includes a slide cover 6, an inner cylinder cover 8, and a fixed pipe assembly that rotates the slide cover 6 by a driving mechanism. The fixed pipe assembly comprises a first fixed pipe 5 and a second fixed pipe 50 which are symmetrically arranged on two sides of the acid filling pipe 9, and the first fixed pipe 5 and the second fixed pipe 50 are rotatably connected with the electrolyte tank 4. The concrete structure can be as follows: rotate in 4 bottoms of electrolyte tank and connect a closing plate 40, be equipped with the sealing washer between closing plate 40 and the electrolyte tank 4, fixed pipe one 5 and fixed pipe two 50 all with closing plate 40 fixed connection, and the upper end opening of fixed pipe one 5 and fixed pipe two 50 all is higher than closing plate 40, irritate sour pipe 9 and be connected with the center rotation of closing plate 40, the upper end opening of irritating sour pipe 9 also is higher than closing plate 40, also be equipped with the sealing washer between irritating sour pipe 9 and the closing plate 40, and thus, both can guarantee that fixed pipe one 5 and fixed pipe two 50 can normally rotate, can guarantee the normal drain of irritating sour pipe 9 again. Of course, the fixing tube assembly may also include a plurality of fixing tubes, as long as the plurality of fixing tubes are all arranged with the acid filling tube 9 as the center, and the acid filling tube 9 is located at the center of the sealing plate 40.
The driving mechanism comprises a motor 3, a driving gear 30 and a driven gear ring 31, an output shaft of the motor 3 is fixedly connected with the driving gear 30, the driving gear 30 is meshed with the driven gear ring 31, and a first fixed pipe 5 and a second fixed pipe 50 are fixed in the driven gear ring 31. Thus, the motor 3 is started to rotate the first fixing pipe 5 and the second fixing pipe 50.
Be equipped with imbibition intermediate layer 60 in the slip cap 6, the lower extreme and the imbibition intermediate layer 60 intercommunication of fixed pipe one 5 and fixed pipe two 50, and fixed pipe one 5 all with slip cap 6 sliding connection with fixed pipe two 50, concrete structure can be as shown in fig. 3, set up two square opening 61 at the top of slip cap 6, let fixed pipe one 5 and fixed pipe two 50's lower extreme embedding square opening 61 in, like this, can realize through fixed pipe one 5 with fixed pipe two 50 with electrolyte leading-in the slip cap 6. A circular through hole 62 is further formed in the center of the sliding cover 6, so that the acid filling pipe 9 extends into the circular through hole 62 to be in sliding connection with the sliding cover 6, and therefore when the first fixed pipe 5 and the second fixed pipe 50 rotate, the sliding cover 6 is driven to rotate. The vacuum pump 2 may be in communication with one of the fixed pipes. The pumping pressure of the vacuum pump 2 is 50 MPa. A limiting block 51 can be arranged below the first fixed pipe 5 and the second fixed pipe 50 to prevent the sliding cover 6 from being separated from the fixed pipes when the sliding cover 6 slides downwards.
The bottom of the sliding cover 6 is fixedly connected with a liquid dispersion part 7 used for throwing the electrolyte flowing out from the acid filling pipe 9, and the liquid dispersion part 7 is communicated with the liquid absorption interlayer 60. The liquid dispersing part 7 is a round table with a narrow top and a wide bottom. A catheter 70 for communicating with the liquid absorbing sandwich 60 is connected to each side of the liquid dispersion part 7. Therefore, the liquid absorbing interlayer 60 can be communicated with the liquid dispersing part 7 to facilitate liquid absorption, and the liquid dispersing part 7 can rotate along with the rotation of the sliding cover 6. A filter screen 71 is welded to the bottom of the liquid dispersion part 7 to prevent the paste and slag in the battery from being sucked in during the liquid suction process.
The inner cylinder cover 8 is rotationally connected with the inner wall of the sliding cover 6, and the concrete structure can be adopted: a groove is arranged on the inner wall of the sliding cover 6, a groove is arranged on the outer wall of the inner cylinder cover 8, and then a rotating ring 80 is arranged between the two grooves. Thus, the inner cylinder cover 8 and the sliding cover 6 can be kept sliding relatively, and the inner cylinder cover 8 and the sliding cover 6 can move up and down together. The inner wall of the inner cylinder cover 8 is provided with a first rack 81.
The acid filling pipe 9 is telescopic and comprises an outer sleeve 91 and an inner sleeve 90, the inner sleeve 90 is connected in the outer sleeve 91 in a sliding mode, the inner sleeve 90 is rotatably connected with the center of the sealing plate 40, and the inner sleeve 90 is provided with an electromagnetic valve; the outer sleeve 91 sequentially penetrates through the top of the sliding cover 6 and the top of the inner cylinder cover 8 and extends into the inner cylinder cover 8, the outer sleeve 91 is connected with the sliding cover 6 and the inner cylinder cover 8 in a sliding mode, and a second rack 92 is arranged on the portion, located on the inner cylinder cover 8, of the outer sleeve 91. A rotating gear 93 is meshed between the first rack 81 and the second rack 92. In order to ensure the normal rotation of the rotating gear 93, a shaft slit 94 is formed on the side wall of the sliding cover 6 and the side wall of the inner cylinder cover 8 close to the frame 1, and the shaft of the rotating gear 93 passes through the shaft slit 94 and is rotatably connected to the frame 1. In order to make the sliding cover 6 and the inner cylinder cover 8 more stable when moving up and down, the first rack 81, the second rack 92 and the rotating gear 93 can be arranged on both sides of the outer sleeve 91.
When acid filling is performed in the third step, the specific operation process is as shown in fig. 1, the liquid dispersion part 7 is inserted into the acid filling opening 100 of the battery; pressing the outer sleeve 91 downward until the lower end of the outer sleeve 91 abuts against the liquid dispersion portion 7, as shown in fig. 4; in the downward sliding process of the outer sleeve 91, the rotating gear 93 rotates, the inner cylinder cover 8 and the sliding cover 6 slide upwards together, the time for operating the outer sleeve 91 to slide downwards can be reduced, the acid filling pipe 9 can be positioned inside the inner cylinder cover 8 when not in use due to the structure, and the acid filling pipe 9 is prevented from being polluted by external dust and the like. Then the motor 3 is started, the motor 3 drives the driving gear 30 to rotate, the driven gear ring 31 rotates along with the driving gear, the first fixed pipe 5 and the second fixed pipe 50 rotate, the sliding cover 6 rotates relative to the inner cylinder cover 8, and the liquid dispersing part 7 rotates; meanwhile, the electromagnetic valve on the inner sleeve 90 is opened, the electrolyte flows to the top of the liquid dispersion part 7 through the inner sleeve 90 and the outer sleeve 91, and the electrolyte is uniformly dispersed to each part of the battery through the centrifugal force of the liquid dispersion part 7 in the rotating process. And after the acid filling is finished, closing the electromagnetic valve and the motor 3.
When the acid is sucked in the fourth step, the sliding cover 6 is pressed downwards in the specific operation process, and when the sliding cover 6 abuts against the limiting block 51 on the fixed pipe, the vacuum pump 2 is started, and in the process, the outer sleeve 91 also slides upwards to return to the original position. After the vacuum pump 2 is started, the inner cavity of the liquid dispersion part 7 is communicated with the vacuum pump 2 through the liquid absorption interlayer 60 and the fixing pipe, the redundant electrolyte in the battery is absorbed by the liquid dispersion part 7, and the redundant electrolyte is recovered to the electrolyte box 4 through the liquid absorption interlayer 60 and the fixing pipe, so that the purpose of discharging the redundant electrolyte in the battery is achieved.
Step five, sealing wax: the acid fill port 100 of the cell was sealed with wax.
In the embodiment, the rack II 92 is arranged on the acid filling pipe 9, the rack I81 is arranged on the inner cylinder cover 8, and the rack I81 and the rack II 92 are both meshed with the rotating gear 93, so that the acid filling pipe 9 moves downwards and the inner cylinder cover 8 and the sliding cover 6 move upwards when acid is filled, and thus, the electrolyte flowing out of the acid filling pipe 9 can directly flow to the liquid dispersing part 7, and the electrolyte is prevented from splashing to the inner wall of the inner cylinder cover 8; meanwhile, the downward moving distance of the acid filling pipe 9 can be reduced by upward moving the sliding cover 6, and the acid filling time is shortened; furthermore, when the bottom of the acid filling pipe 9 is abutted against the top of the liquid dispersion part 7, namely the acid filling pipe 9 cannot move downwards continuously, acid filling can be carried out, and a good prompt effect is achieved; and this kind of structure can let irritate sour pipe 9 and be in inside the inner cylinder cover 8 when not using, avoids pollution acid pipe 9 such as external dust. And when acid is absorbed, the sliding cover 6 and the inner cylinder cover 8 move downwards to recover the original position, and meanwhile, the acid filling pipe 9 also moves upwards to recover the original position, so that after the acid absorption process is finished, ending work is not needed, all the parts automatically recover the original position, and the next battery is convenient to be filled with acid continuously.
Example 2
This example differs from example 1 in that:
the concentration of the electrolyte in the step one is 1.3g/cm3The temperature was 25 ℃.
In the third step, the stirring speed of the electrolyte is 150 r/min.
In the fourth step, the air exhaust pressure of the vacuum pump 2 is 80 MPa.
The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The acid filling method for the horizontal battery is characterized by comprising the following steps:
step one, preparing electrolyte: adding pure sulfuric acid into distilled water, and mixing to obtain the product with the concentration of 1.2-1.3 g/cm3The electrolyte of (1);
step two, vacuumizing the battery: air in the battery is pumped out by using air pumping equipment;
step three, acid filling: putting the electrolyte in the step one into an electrolyte box, then guiding the electrolyte to a liquid dispersion part by using an acid filling pipe while stirring, and throwing the electrolyte out of the battery by rotating the liquid dispersion part;
step four, acid absorption: sucking out the redundant electrolyte in the battery by using the liquid dispersion part in the third step, and recycling the redundant electrolyte into an electrolyte box through an acid absorption mechanism;
step five, sealing wax: sealing the acid filling port of the battery by using wax;
the acid absorption mechanism comprises a sliding cover, an inner cylinder cover and a fixed pipe assembly, an electrolyte box is arranged above the acid absorption mechanism, a sealing plate is rotatably connected to the bottom of the electrolyte box, an acid filling pipe is rotatably connected to the center of the sealing plate, the fixed pipe assembly comprises a plurality of fixed pipes, the plurality of fixed pipes are distributed by taking the acid filling pipe as the center, and the plurality of fixed pipes are fixedly connected with the sealing plate;
the outer side of the fixed pipe assembly is provided with a driving mechanism for driving the fixed pipe assembly to rotate, the driving mechanism comprises a motor, a driving gear and a driven gear ring, an output shaft of the motor is fixedly connected with the driving gear, the driving gear is meshed with the driven gear ring, and the fixed pipe is fixed in the driven gear ring;
a liquid absorption interlayer is arranged in the sliding cover, the lower end of the fixed tube is communicated with the liquid absorption interlayer, and the fixed tube is connected with the sliding cover in a sliding manner; the acid filling pipe is connected with the sliding cover in a sliding manner; the fixed pipe is communicated with a vacuum pump;
the bottom of the sliding cover is fixedly connected with a liquid dispersion part used for throwing the electrolyte flowing out of the acid filling pipe, and the liquid dispersion part is communicated with the liquid absorption interlayer; both sides of the liquid dispersion part are respectively communicated with a liquid guide pipe which is used for being communicated with the liquid absorption interlayer;
the inner cylinder cover is rotatably connected with the inner wall of the sliding cover, and a first rack is arranged on the inner wall of the inner cylinder cover;
the acid filling pipe comprises an outer sleeve and an inner sleeve, the inner sleeve is connected in the outer sleeve in a sliding mode, the inner sleeve is rotationally connected with the center of the sealing plate, and the inner sleeve is provided with an electromagnetic valve; the outer sleeve sequentially penetrates through the top of the sliding cover and the top of the inner cylinder cover and extends into the inner cylinder cover, the outer sleeve is connected with the sliding cover and the inner cylinder cover in a sliding mode, and a second rack is arranged on the part, located on the inner cylinder cover, of the outer sleeve; a rotating gear is meshed between the first rack and the second rack.
2. The horizontal battery acid filling method according to claim 1, characterized in that: in the first step, the temperature of the electrolyte is 15-25 ℃.
3. The horizontal battery acid filling method according to claim 1, characterized in that: and step two, detecting whether the vacuum degree of the battery is below 0.2MPa by using a vacuum degree detector.
4. The horizontal battery acid filling method according to claim 1, characterized in that: in the third step, the stirring speed of the electrolyte is 100-150 r/min.
5. The horizontal battery acid filling method according to claim 2, 3 or 4, wherein: and the acid absorption mechanism in the fourth step is communicated with a vacuum pump.
6. The horizontal battery acid filling method according to claim 5, wherein: the air suction pressure of the vacuum pump is 50-80 MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711449400.0A CN108365159B (en) | 2017-12-27 | 2017-12-27 | Horizontal battery acid filling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711449400.0A CN108365159B (en) | 2017-12-27 | 2017-12-27 | Horizontal battery acid filling method |
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| CN108365159A CN108365159A (en) | 2018-08-03 |
| CN108365159B true CN108365159B (en) | 2020-10-23 |
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| CN109671900A (en) * | 2018-12-24 | 2019-04-23 | 屈晓芳 | A kind of battery production raw material can automatic ration filler material feeding process units |
| CN110518294B (en) * | 2019-09-12 | 2022-05-27 | 安徽理士电源技术有限公司 | Free acid recovery device for tubular colloid battery preparation and recovery method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724182B2 (en) * | 1998-04-14 | 2005-12-07 | 松下電器産業株式会社 | Battery electrolyte injection system |
| CN103474614A (en) * | 2013-09-03 | 2013-12-25 | 超威电源有限公司 | Quantitative acid filling device |
| CN105870395A (en) * | 2016-04-22 | 2016-08-17 | 浙江昀邦电池有限公司 | Electrolyte rotation injection device of alkaline dry battery |
-
2017
- 2017-12-27 CN CN201711449400.0A patent/CN108365159B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724182B2 (en) * | 1998-04-14 | 2005-12-07 | 松下電器産業株式会社 | Battery electrolyte injection system |
| CN103474614A (en) * | 2013-09-03 | 2013-12-25 | 超威电源有限公司 | Quantitative acid filling device |
| CN105870395A (en) * | 2016-04-22 | 2016-08-17 | 浙江昀邦电池有限公司 | Electrolyte rotation injection device of alkaline dry battery |
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