CN110872719A - Graphene alloy grid and metal layer connection process - Google Patents
Graphene alloy grid and metal layer connection process Download PDFInfo
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- CN110872719A CN110872719A CN201811004980.7A CN201811004980A CN110872719A CN 110872719 A CN110872719 A CN 110872719A CN 201811004980 A CN201811004980 A CN 201811004980A CN 110872719 A CN110872719 A CN 110872719A
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- stirring
- plating solution
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- alloy grid
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 36
- 239000000956 alloy Substances 0.000 title claims abstract description 33
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 33
- 239000002184 metal Substances 0.000 title claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 90
- 238000007747 plating Methods 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000009713 electroplating Methods 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 18
- 238000005507 spraying Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 abstract description 7
- 239000010439 graphite Substances 0.000 abstract description 7
- -1 graphite alkene Chemical class 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000005253 cladding Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 36
- 239000008151 electrolyte solution Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 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
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/10—Agitating of electrolytes; Moving of racks
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/16—Regeneration of process solutions
- C25D21/18—Regeneration of process solutions of electrolytes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
Abstract
The patent discloses a graphene alloy grid and metal layer connection process, which comprises the following steps: the method comprises the following steps: fixing a graphene alloy grid and preparing a material; step two: primary stirring; step three: stirring for the second stage; step four: stirring in a third stage; step five: a fourth-stage stirring step six: stirring in five stages; step seven: and (4) connecting the coatings. Form the plating solution of misce bene through five times of stirring, then with the plating solution plate on graphite alkene alloy net can, the plating solution of misce bene makes the cladding material be of high quality, and inseparable with graphite alkene alloy net junction, processingquality is high.
Description
Technical Field
The invention relates to the field of battery processing.
Background
In recent years, with the improvement of the technical level, the battery performance is continuously improved, the variety is continuously increased, the market is widened, and the application field is wider and wider. Various high-performance secondary batteries include: zinc-silver batteries (zinc-silver batteries, i.e., secondary batteries and zinc-silver primary batteries), cadmium-nickel batteries, lithium batteries, lead-acid batteries, and the like.
The lead-acid battery has been developed by the year 1860 after the inventions of prandtl french physicist and jacobian russian scientist, and not until 1881. Since the 60 s of the 20 th century, the gas recombination principle is applied to the lead-acid storage battery, so that the lead-acid storage battery reaches the sealing stage and is revived.
In the manufacturing of the battery, the direct connection and fixation of the graphene alloy grid and the metal layer are usually carried out in an electroplating, bonding or welding mode, but the adhesion degree of the graphene alloy grid and the metal fixed by bonding and welding is not high, so that a fault or instability phenomenon is easy to occur during use, the metal layer is connected by using the electroplating mode, the metal layer electroplated on the surface of the graphene alloy is strong in tightness with the graphene alloy grid, the conventional electroplating process is usually carried out by stirring the metal layer by a stirring device and an electroplating pool, the common stirring device usually generates the phenomenon of uneven stirring, the quality of a technical coating is low, the connection with the graphene alloy grid is poor, the processing quality is low, and the metal to be electroplated is placed in the electroplating pool for electroplating during the conventional electroplating, the electroplating is finished after the graphene metal mesh is placed for a period of time and then taken out, but the contact between one surface of the metal close to the bottom of the electroplating pool and the electroplating solution is insufficient in the mode, so that the distribution of the metal layer outside the graphene metal mesh is uneven, the processing quality is low, and the using effect is poor.
Disclosure of Invention
The invention aims to solve the problem of low processing quality caused by insufficient contact between electroplating solution and metal in the traditional electroplating process.
In order to achieve the above object, the basic scheme of the invention is as follows: the method comprises the following steps: fixing a graphene alloy grid and preparing a material; fixing the graphene alloy grid on a placing frame through a fixing rope, mixing solid metal salt and water according to a required proportion, then putting the mixture into a tank body, and then sequentially carrying out five-stage stirring on the mixed plating solution by using a plating solution stirring device;
step two: primary stirring; a main shaft of the plating solution stirring device drives a stirring arm to rotate so as to carry out primary stirring on the plating solution;
step three: stirring for the second stage; the stirring arm swings and is attracted and repelled by the flow guide block, and the mixed liquid is stirred for the second stage;
step four: stirring in a third stage; in the third step, the stirring arm swings to cause the air bag to be continuously repelled or attracted, so that the solution is continuously sucked and discharged from the tank body to carry out three-stage stirring;
step five: stirring at four stages; liquid is sucked and discharged to enable the stirring arm to rotate, and the solution is stirred in a four-stage mode;
step six: stirring in five stages; a piston mechanism is formed in the tank body to carry out five-stage stirring on the solution;
step seven: connecting the plating layers; the well-stirred plating solution is sprayed on the fixed graphene grids through a plating solution spraying device, and the graphene grids are driven by a motor to rotate in the electroplating pool for electroplating.
The principle and the effect of the basic scheme are that,
form the plating solution of misce bene through five times of stirring, then with the plating solution plate on graphite alkene alloy net can, the plating solution of misce bene makes the cladding material be of high quality, and inseparable with graphite alkene alloy net junction, processingquality is high.
Furthermore, in the fourth step, the lower end of the air bag is provided with a permanent magnet and a flow guide piece. The stirring effect of the stirring arm is enhanced.
Furthermore, in the fourth step, a liquid outlet hole is arranged on the air bag. The effect of suction and discharge is formed, and the stirring sufficiency is increased.
Furthermore, in the fourth step, a part of the flow guide part is attracted with the permanent magnet, and a part of the flow guide part is repelled with the permanent magnet. The acting forces of the two stirring arms are just opposite, so that the stirring arms continuously swing up and down in the rotating process around the main shaft, the boundary between different depths of the electrolyte solution is broken, and the electrolyte solution in the tank body tends to be consistent
Further, in the seventh step, after the electroplating is completed, the plating solution in the electroplating pool is sucked by the plating solution stirring device, and the graphene metal grid continuously rotates to be dried. Realize the recycling of plating solution to carry out intensive mixing again during the circulation, add the dry process and make the electroplating effectual, the quality is good.
Drawings
Fig. 1 is a schematic structural diagram of an electroplating apparatus in a process of connecting a graphene alloy grid and a metal layer according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the bath stirring apparatus of FIG. 1;
FIG. 3 is a schematic diagram of the electroplating cell of FIG. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the electroplating device comprises an electroplating pool 1, a placing frame 2, a plating solution stirring device 3, a variable speed motor 4, a first connecting rod 5, a second connecting rod 6, a fixed rope 7, a liquid storage tank 8, a first circulating pipe 9, a second circulating pipe 11, a tank body 10, a main shaft 20, a spherical connecting piece 21, a connecting rod 22, a stirring arm 23, an air bag 24, a permanent magnet 25, a piston plate 26, a connecting rod 27 and a flow guide block 28.
The embodiment provides a graphene alloy grid and metal layer connection process, which comprises the following steps:
the method comprises the following steps: fixing a graphene alloy grid and preparing a material; fixing the graphene alloy grid on the placing rack 2 through a fixing rope 7, mixing solid metal salt and water according to a required proportion, then placing the mixture into the tank body 10, and then sequentially carrying out five-stage stirring on the mixed plating solution by using a plating solution stirring device 3;
step two: primary stirring; the main shaft 20 of the plating solution stirring device 3 drives the stirring arm 23 to rotate to carry out primary stirring;
step three: stirring for the second stage; the stirring arm 23 swings to be attracted and repelled by the flow guide block 28, and the mixed liquid is subjected to secondary stirring;
step four: stirring in a third stage; in the third step, the stirring arm 23 swings to cause the air bag 24 to be continuously repelled or attracted, so that the solution is continuously sucked into and discharged from the tank body 10 to carry out three-stage stirring;
step five: stirring at four stages; the liquid is sucked and discharged to enable the stirring arm 23 to rotate, and the solution is stirred in a four-stage mode;
step six: stirring in five stages; a piston mechanism is formed in the tank body 10 to stir the solution in five stages;
step seven: connecting the plating layers; and spraying the stirred plating solution on the fixed graphene grids through a plating solution spraying device, and electroplating the graphene grids in the electroplating pool 1 in a rotating manner under the driving of a motor. Wherein, the first step to the seventh step are processed by adopting electroplating equipment: substantially as shown in figures 1 and 3: including the frame with establish plating bath agitating unit 3 in the frame, electroplating bath 1, plating bath spray set, electroplating bath 1 is equipped with variable speed motor 4 outward, one end rotates in the electroplating bath 1 and is connected with head rod 5, the other end rotates and is connected with second connecting rod 6, the rigid coupling has rack 2 between head rod 5 and the second connecting rod 6, head rod 5 passes electroplating bath 1 and is connected to variable speed motor 4, 2 circumference of rack all is equipped with a plurality of fixed ropes 7 that are used for fixed graphite alkene alloy net, plating bath spray set establishes in electroplating bath 1 top, plating bath spray set includes liquid reserve tank 8 and shower head, the intercommunication has first circulating pipe 9 between liquid reserve tank 8 and plating bath agitating unit 3, the intercommunication has second circulating pipe 11 between plating bath agitating unit 3 and the electroplating bath 1.
As shown in fig. 2, the plating solution stirring device comprises a tank 10 and a spindle 20 rotatably connected in the tank 10, the part of the spindle 20 located in the tank 10 is hollow, a spherical connecting piece 21 is spherically hinged in the middle of the spindle 20, a connecting rod 22 is horizontally fixed on the spherical connecting piece 21, the connecting rod 22 is asymmetrically arranged on the spherical connecting piece 21, the lower end of the spherical connecting piece 21 is hinged with a connecting rod 27, the tail end of the connecting rod 27 is hinged with a piston plate 26, the piston plate 26 is slidably arranged on the hollow section of the spindle 20, and a first liquid inlet check valve and a first liquid outlet check valve are arranged on the hollow section of the spindle 20 below the piston plate 26.
The outer end of the connecting rod 22 is rotatably connected with two stirring arms 23 respectively, the lower ends of the stirring arms 23 are fixed with air bags 24 respectively, the lower ends of the air bags 24 are provided with permanent magnets 25, the air bags 24 are provided with second liquid inlet one-way valves and second liquid outlet one-way valves along the tangential direction, the liquid outlet holes of the two air bags 24 are opposite in orientation, the bottom of the corresponding tank body 10 is provided with a plurality of flow guide blocks 28, one half of the flow guide blocks 28 are attracted with the permanent magnets 25, and the other half of the flow guide blocks 28 are repelled with the permanent.
During operation, firstly, the graphene alloy grid of the metal layer to be plated is fixed on the placing rack 2 through a fixing rope, then solid metal salt and water are put into the tank body 10 of the plating solution stirring device according to a certain proportion, at the moment, the main shaft 20 is started, the main shaft 20 rotates to drive the stirring arm 23 to rotate, and therefore the electrolyte solution in the tank body 10 is stirred and mixed, namely primary stirring.
The stirring arms 23 are continuously repelled or attracted by the flow guide block 28 during the rotation process, and the acting forces of the two stirring arms 23 are just opposite, so that the stirring arms 23 continuously swing up and down around the main shaft 20 during the rotation process, the boundary between different depths of the electrolyte solution is broken, and the electrolyte solution in the tank body 10 tends to be consistent, which is secondary stirring.
Meanwhile, the air bag 24 is also continuously repelled or attracted by the flow guide block 28, so that the electrolyte solution is continuously sucked into the tank 10 and is continuously discharged, which is three-stage stirring.
The integration of reinforcing electrolyte solution simultaneously because the second goes out liquid check valve and sets up along tangential direction to can give 24 rotations moments of torsion of gasbag, make the stirring arm 23 rotation get up, thereby strengthened the stirring effect and the efficiency of stirring arm 23, this is the level four stirring.
The spherical connecting piece 21, the connecting rod 27 and the piston plate 26 form a slider-crank mechanism, the stirring arm 23 can also cause the reciprocating swing of the spherical connecting piece 21 in the continuous up-and-down swinging process, and further the piston plate 26 reciprocates up and down, so that the electrolyte solution is continuously sucked into the hollow section of the main shaft 20 from the upper part of the tank 10 and is discharged from the lower part of the tank 10, the circulating stirring is carried out outside the hollow section of the main shaft 20 by matching the stirring arm 23, the continuous circulating reciprocating stirring effect of the electrolyte solution in the tank 10 is formed, and the five-stage stirring is carried out, so that the stirring of the electrolyte solution is completed.
After stirring, the electroplating solution enters a liquid storage tank 8 through a first circulating pipe 9, then a variable speed motor 4 is started, the variable speed motor 4 drives a first connecting rod 5 to actively rotate, and simultaneously drives a placing rack 2 and a second connecting rod 6 to rotate in a driven manner, at the moment, a spray head downwards sprays the fixed graphene alloy grid, during spraying, the placing rack 2 continuously rotates to uniformly spray the electroplating solution onto the graphene alloy grid, the sprayed electroplating solution completely enters an electroplating pool 1, after all the electroplating solution obtained after stirring is sprayed into the electroplating pool 1, the variable speed motor 4 continuously drives the placing rack 2 to rotate, the graphene alloy grid continuously rotates in the electroplating solution in the electroplating pool 1, after the electroplating solution is rotated for a certain time, electroplating is completed, and the electroplating solution is stirred and transposed to be sucked into a tank body 10 through a second circulating pipe 11, variable speed motor 4 continues to drive rack 2 and rotates still, and at this moment, variable speed motor 4 rotational speed slows down, has accomplished the drying to the plating solution in rack 2 pivoted, waits that variable speed motor 4 stall after it accomplishes the drying, takes out the graphite alkene alloy net after having plated the metal level, then carries out the metal coating processing of next graphite alkene alloy net.
The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. 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 (5)
1. The connection process of the graphene alloy grid and the metal layer is characterized in that: the method comprises the following steps:
the method comprises the following steps: fixing a graphene alloy grid and preparing a material; fixing the graphene alloy grid on a placing frame through a fixing rope, mixing solid metal salt and water according to a required proportion, then putting the mixture into a tank body, and then sequentially carrying out five-stage stirring on the mixed plating solution by using a plating solution stirring device;
step two: primary stirring; a main shaft of the plating solution stirring device drives a stirring arm to rotate so as to carry out primary stirring on the plating solution;
step three: stirring for the second stage; the stirring arm swings and is attracted and repelled by the flow guide block, and the mixed liquid is stirred for the second stage;
step four: stirring in a third stage; in the third step, the stirring arm swings to cause the air bag to be continuously repelled or attracted, so that the solution is continuously sucked and discharged from the tank body, and three-stage stirring is carried out;
step five: stirring at four stages; liquid is sucked and discharged to enable the stirring arm to rotate, and the solution is stirred in a four-stage mode;
step six: stirring in five stages; a piston mechanism is formed in the tank body to carry out five-stage stirring on the solution;
step seven: connecting the plating layers; the well-stirred plating solution is sprayed on the fixed graphene grids through a plating solution spraying device, and the graphene grids are driven by a motor to rotate in the electroplating pool for electroplating.
2. The graphene alloy grid and metal layer connection process of claim 1, wherein: in the fourth step, the lower end of the air bag is provided with a permanent magnet and a flow guide piece.
3. The graphene alloy grid and metal layer connection process of claim 2, wherein: in the fourth step, the air bag is provided with a liquid outlet hole.
4. The graphene alloy grid and metal layer connection process of claim 3, wherein: in the fourth step, a part of the flow guide pieces are attracted with the permanent magnets, and a part of the flow guide pieces are repelled with the permanent magnets.
5. The graphene alloy grid and metal layer connection process of claim 1, wherein: and seventhly, absorbing the plating solution in the plating tank by using a plating solution stirring device after the plating is finished, and continuously rotating the graphene metal grid for drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811004980.7A CN110872719A (en) | 2018-08-30 | 2018-08-30 | Graphene alloy grid and metal layer connection process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811004980.7A CN110872719A (en) | 2018-08-30 | 2018-08-30 | Graphene alloy grid and metal layer connection process |
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Cited By (2)
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| CN113337874A (en) * | 2021-06-02 | 2021-09-03 | 深圳市金源康实业有限公司 | Non-toxic nickel-free electroplating device for copper-tin alloy for electroplating and operation process |
| CN113385072A (en) * | 2021-06-17 | 2021-09-14 | 重庆化工职业学院 | Premixing device of chemical reaction kettle |
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