CN116240615A

CN116240615A - Electrode slice electrodeposition production process and application thereof

Info

Publication number: CN116240615A
Application number: CN202211741424.4A
Authority: CN
Inventors: 董全英; 韩永刚; 张加加; 请求不公布姓名; 周振声
Original assignee: Shanghai Juna New Material Technology Co ltd
Current assignee: Shanghai Juna New Material Technology Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-09

Abstract

The invention belongs to the technical field of electrolytic water electrode plate manufacturing, and particularly discloses an electrode plate electrodeposition production process and application thereof. The process comprises the following steps of feeding: fixing the sheet on the flyer in a horizontal state, driving the flyer to rise to a second preset height, and turning over the flyer to change the sheet from the horizontal state to the vertical state; adding the medicine: adding the electrodeposition liquid into an electrodeposition tank; electrodeposition: transferring and placing the flying target loaded with the sheet on a preset electrodeposition station in an electrodeposition tank, and electrodepositing the sheet; cleaning and drying; the invention realizes the automation of the production process of manufacturing the electrode slice by using the light, thin and soft large sheet (such as foam nickel) as a base material and using the electrodeposition process, can reduce the labor cost and improve the production efficiency.

Description

Electrode slice electrodeposition production process and application thereof

Technical Field

The invention relates to the technical field of electrolytic water electrode plate manufacturing, in particular to an electrode plate electrodeposition production process and application thereof.

Background

The hydrogen energy is a secondary energy source with rich sources, green low carbon and wide application, and the hydrogen energy industry has high quality development. The electrode plate for hydrogen production by water electrolysis/oxygen catalysis is a key link of the hydrogen production technology by water electrolysis, and the manufacturing cost and the hydrogen production efficiency of the electrode plate have decisive significance on the hydrogen production cost. At present, a plurality of electrode plates used in China depend on import, so that research and development and trial production of the electrode plates are accelerated, and the influence on construction and development of hydrogen energy industry in China is great.

At present, an electrolytic tank used in a hydrogen production system in the domestic market is mainly an alkaline electrolytic tank, an electrode plate of a core component is divided into an anode plate and a cathode plate, wherein the very key process in the production process of the cathode plate is electrodeposition, the electrodeposition refers to selective deposition of metal at a cathode of an electrode, insoluble substances are taken as an anode, and metal ions in electrolyte are deposited on the cathode to form a negative electrode plate with catalytic performance; at present, most electrode plates on the market use nickel screens as base materials, and the manufacturing process is carried out by immersing coiled materials. However, the electrode plate produced by the method has smaller size, thicker electrode plate, low hydrogen production efficiency, strong metal, high strength, rough processing process and poor flatness of the product. Along with the continuous increase of the hydrogen energy demand in the market, the manufacturing cost of the hydrogen energy becomes a key link, so that the current market has higher and higher requirements on the hydrogen production efficiency of the electrode plate.

In order to improve the hydrogen production efficiency, on the one hand, the size of the electrode plate can be increased, and on the other hand, the hydrogen production amount per unit area of the electrode plate can be increased. According to the mode, the electrode plate is enlarged and thinned, the structure is not flat any more, and the catalytic performance in the unit range can be higher. As the electrode sheet is increasingly larger in size, the material of the substrate is changed, and the substrate is thin (the thickness is in millimeter level, for example, 0.5 mm) and is between metal and nonmetal, such as foam nickel, but the flatness of the substrate is difficult to control during the production and processing, so that the consistency of the electrode sheet produced by the substrate is difficult to ensure. Meanwhile, in the production process of the negative electrode sheet, besides the electrodeposition, the processes of feeding, dosing, cleaning and the like are also carried out, so that a series of operations such as transferring, horizontally changing to be vertical and the like are also needed on a production line for the base material, and the large and thin sheet is a product which is inconvenient to take and put alone or is easy to transfer, so that the automatic production is difficult to realize.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an electrodeposition process for producing electrode sheets and application thereof, which can realize automation of the production process of manufacturing electrode sheets by using a light, thin and soft large sheet (such as foam nickel) as a base material and using the electrodeposition process.

To achieve the above-mentioned objects and other related objects,

the first aspect of the invention provides an electrodeposition production process of an electrode sheet, comprising the following steps:

and (3) feeding: fixing the sheet on the flyer in a horizontal state, driving the flyer to rise to a second preset height, and turning over the flyer to change the sheet from the horizontal state to the vertical state;

adding the medicine: adding the electrodeposition liquid into an electrodeposition tank;

electrodeposition: transferring and placing the flying target loaded with the sheet on a preset electrodeposition station in an electrodeposition tank, and electrodepositing the sheet;

cleaning: after the electrodeposition is finished, transferring and placing the flying target loaded with the sheet on a preset cleaning station to clean the sheet;

and (3) drying: after the cleaning is finished, transferring and placing the flying target loaded with the sheet on a preset drying station, and drying the sheet.

Further, the process comprises the following steps:

and (3) feeding: the lifting turnover device and the transfer device are controlled by the feeding and discharging control unit, the sheet is fixed on the flytargets in a horizontal state, the flytargets are driven to rise to a second preset height by the lifting turnover device, and the flytargets are turned over to change the sheet from the horizontal state to the vertical state;

adding the medicine: the chemical adding control unit controls the chemical adding system to add the electrodeposition liquid into the electrodeposition tank;

electrodeposition: transferring and placing the flying target loaded with the sheet on a preset electrodeposition station in an electrodeposition tank through a transfer device, and controlling to start and stop an electrodeposition process through an electrodeposition control unit to perform electrodeposition on the sheet;

cleaning: after the electrodeposition is finished, transferring the flying target loaded with the sheet material through a transfer device and placing the flying target on a preset cleaning station in a cleaning system, and controlling the cleaning system to clean the sheet material after the electrodeposition is finished through a cleaning control unit;

and (3) drying: after the cleaning is finished, the flying target loaded with the sheet is transported through a transporting device and placed on a preset drying station in a drying system, and the sheet is dried.

Further, the feeding step further includes: the lifting turnover device drives the flying target to descend to a first preset height, and then the sheet is fixed on the flying target in a horizontal state. The first preset height refers to an operation height which can fix the sheet on the flying target manually.

Further, the flying target comprises a clamp, the clamp comprises a back plate, a cover plate and a plurality of clamping pieces, a plurality of concave holes are formed in the back plate, magnetic attraction pieces made of magnetic materials are arranged in the concave holes, and the sheet contains metal capable of being attracted by the magnetic materials; the cover plate is buckled on the back plate, and the cover plate and the back plate are matched with each other to encapsulate the magnetic attraction piece; the clamping pieces are arranged on one side of the cover plate and used for fixedly clamping and attaching the side edges of the sheet materials on the cover plate.

Further, the process further comprises: and the transfer device takes down the flying target filled with the sheet from the lifting and turning device and transfers the flying target to the sheet storage system for caching.

Further, the process further comprises: according to the feeding mode, each fly target is loaded with one sheet, and a plurality of sheets, preferably 10-30 sheets, are cached in a sheet storage system.

Further, the process further comprises the steps of injecting liquid and dispensing the medicine before adding the medicine, wherein the injecting liquid and dispensing the medicine comprises the following steps: injecting solvent and medicament into the dispensing device, and stirring to prepare the electrodeposition liquid. Wherein the solvent is selected from water, preferably distilled water, deionized water, pure water, ultrapure water, etc., and the raw material reagent required for preparing the electrodeposition liquid by the medicament.

Furthermore, the liquid injection module is used for controlling the medicine adding system to inject solvent into the medicine dispensing device, and the stirring module is used for controlling the medicine dispensing device to dispense medicine in a stirring mode; the medicament can be added manually after being quantitatively packaged in a laboratory.

Further, the process also includes water injection, the water injection including: and controlling water to be injected into the washing tank through a water injection control module in the washing control unit. In general, water is injected into the washing tank first, and an operator visually inspects that the water in the washing tank needs not to be replaced, and if the water needs to be replaced, the water is automatically injected into the washing tank. The water in the washing tank is pure water or ultrapure water, generally, pure water is used for cleaning the sheet, then ultrapure water is used for cleaning the sheet, and the specific cleaning times of the pure water and the ultrapure water are adjusted and set according to actual conditions.

Further, the process further comprises: and sequentially transferring and placing a plurality of sheets cached in the sheet storage system on a preset electrodeposition station in an electrodeposition tank through a transfer device to perform electrodeposition.

Further, the cleaning further includes: the transfer device vertically lifts the flytargets to a preset cleaning station, drives the flytargets to descend, places the sheets into the washing tank for pickling, and after a certain time, sequentially places the flytargets into the rest of the washing tanks by lifting the flytargets by the transfer device, and performs stepped countercurrent cleaning to complete the cleaning work. Further, the washing time is generally set to 1 to 30 minutes, preferably 5 to 20 minutes.

Further, the drying includes: after the cleaning is finished, the transfer device transfers and hangs the flying target loaded with the sheet on a preset drying station in a drying system for draining.

Further, the process also includes a liquid discharge comprising: after the electrodeposition is finished, the automatic liquid discharge equipment is controlled by the liquid discharge unit to discharge the residual electrodeposition liquid in the electrodeposition tank into the wastewater treatment system for temporary storage.

Further, the process further comprises: and after all the sheets cached in the sheet storage system are electrodeposited, draining.

Further, the sheet is foamed nickel.

Further, the thickness of the sheet is 0.3-0.6 mm, and the area is more than or equal to 0.5m ² Preferably not less than 1.0m ² More preferably 1.0 to 5.0m ² 。

Further, the electrode plate is an oxygen-generating electrode plate.

A second aspect of the invention provides the use of an electrodeposition process according to the first aspect in the manufacture of an electrode sheet.

As described above, the electrode slice electrodeposition production process and application thereof of the invention have the following beneficial effects:

the process provided by the invention can well ensure that the sheet material keeps flat in the clamping process and ensures verticality in the vertical state by clamping the sheet material which is large in size, thin and soft and is made of metal and nonmetal by using the flying target, so that the uniformity and consistency of electrodeposition on the surface of the sheet material are ensured; the lifting turnover device and the transfer device are automatically controlled by the control system to turn and transfer the sheet, so that automatic feeding and discharging are realized, and procedures such as dosing, electrodeposition, cleaning, drying and the like are automatically performed, thereby realizing automation of the production process of manufacturing the electrode sheet by using the light, thin and soft large sheet (such as foam nickel) as a base material and processing and manufacturing the electrode sheet by using an electrodeposition process, reducing labor cost and improving production efficiency.

Drawings

Fig. 1 is a schematic diagram of an electrodeposition line for electrode pads according to an embodiment of the invention.

Fig. 2 is a schematic diagram of an electrode sheet electrodeposition line according to an embodiment of the invention.

FIG. 3 is a schematic view showing the structure of a large-sized sheet material holder according to an embodiment of the present invention.

Fig. 4 is a schematic view showing the structure of a large-sized sheet material holder according to another embodiment of the present invention.

Fig. 5 is a schematic structural view of a skeleton according to another embodiment of the present invention.

Fig. 6 is a schematic structural view of a clamping member according to another embodiment of the invention.

Fig. 7 is a schematic structural view of another clamping member according to another embodiment of the present invention.

Fig. 8 shows a left side view of the clip shown in fig. 7.

Fig. 9 is a schematic view showing the structure of a large-sized sheet material holder according to another embodiment of the present invention.

Fig. 10 is a schematic view showing the structure of a large-sized sheet material holder according to another embodiment of the present invention.

Reference numerals illustrate:

the device comprises a flying target 100, a back plate 110, a cover plate 120, a clamping piece 130, a clamping plate 131, a wrench 132, a fixing seat 133, a magnetic attraction piece 140, a framework 150, a square tube 151, a conductive copper bar 160, an electrode holder 170, a hanging lug 180, a lifting turnover device 200, a transfer device 300, an electrodeposition groove 400, a sheet storage system 500, a washing groove 600 and a draining area 700.

Detailed Description

Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.

It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concepts of the application by way of illustration, and only the components related to the application are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex. The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and should not be construed as limiting the scope of the invention, since any structural modifications, changes in proportions, or adjustments of sizes, which may be made by those skilled in the art, should not be construed as limiting the scope of the invention, which is otherwise, limited to the specific embodiments disclosed herein, without affecting the efficiency and objects attained by the subject invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the present application to which they may be applied, but rather to modify or adapt the relative relationship without materially altering the technical context.

An embodiment of the application provides an electrodeposition production process of an electrode slice, which comprises the following steps:

As shown in fig. 1, an embodiment of the present application provides an electrode sheet electrodeposition production line, which can manufacture an electrode sheet according to the electrodeposition production process mentioned in the above embodiment, where the production line includes a loading and unloading system, a dosing system, an electrodeposition system, a cleaning system, a drying system, and a control system; the feeding and discharging system comprises a plurality of targets 100, a lifting turnover device 200 and a transfer device 300, wherein the targets 100 comprise clamps, each clamp comprises a back plate 110, a cover plate 120 and a plurality of clamping pieces 130, a plurality of concave holes are formed in the back plate 110, magnetic attraction pieces 140 made of magnetic materials are arranged in the concave holes, and the sheets contain metals capable of being attracted by the magnetic materials; the cover plate 120 is buckled on the back plate 110, and the cover plate 120 and the back plate 110 are matched with each other to encapsulate the magnetic attraction piece 140; the clamping pieces 130 are all arranged on one side of the cover plate 120 and are used for fixedly clamping the side edges of the sheet materials attached to the cover plate 120; the lifting turnover device 200 is used for driving the flying target 100 to move up and down and turn over, and the transferring device 300 is used for grabbing and transferring the flying target 100; the electrodeposition system comprises an electrodeposition tank 400, and the dosing system is used for adding the electrodeposition liquid into the electrodeposition tank 400; the cleaning system is used for cleaning the sheet after the electrodeposition is finished, and the drying system is used for drying the cleaned sheet; the control system comprises a loading and unloading control unit, a dosing control unit, an electrodeposition control unit and a cleaning control unit.

In another embodiment of the present application, as shown in fig. 2, the production line further includes a sheet storage system located between the loading and unloading system and the electrodeposition system for buffering the targets 100 loaded with sheets.

In another embodiment of the present application, the production line further comprises a liquid discharge system including an automatic liquid discharge device for discharging the residual electrodeposition liquid in the electrodeposition bath 400 into the wastewater treatment system, and a wastewater treatment system for temporarily storing the residual electrodeposition liquid in the electrodeposition bath 400.

Further, the automatic liquid discharge device comprises a liquid discharge pipe, and the wastewater treatment system comprises an acid wastewater storage tank, wherein the acid wastewater storage tank is connected with the electrodeposition tank 400 through the liquid discharge pipe and is used for temporarily storing residual electrodeposition liquid in the electrodeposition tank 400.

In another embodiment of the present application, the lifting and flipping device 200 is used to drive the fly-target 100 up and down and change the fly-target 100 from a horizontal state to a vertical state. The lifting and turning device 200 may be lifted and turned by a combination of a chain and gears.

In another embodiment of the present application, the transfer device 300 includes a boom for transferring the targets 100. As shown in fig. 1 and 2, the traveling area of the truss car is one side of the production line, and the truss car production line is reciprocated to transfer the sheet material in the electrodeposition production process of the electrode sheet for loading and unloading.

In another embodiment of the present application, a dosing system includes a dispensing device for dispensing an electrodeposition liquid; preferably, the dispensing canister is a stirred dispensing canister.

In another embodiment of the present application, the cleaning system is a multi-stage stepped counter-current cleaning system, comprising a plurality of water wash tanks 600 in stepped distribution; preferably, the cleaning system is a three stage stepped counter current cleaning system comprising three stepped distribution rinse tanks 600.

In another embodiment of the present application, the drying system includes a number of draining areas 700, the draining areas 700 being used to suspend the targets 100 loaded with sheets to drain the sheets.

In another embodiment of the present application, the drying system further comprises a drying apparatus for drying the sheet material suspended in the drain 700.

In another embodiment of the present application, the loading and unloading control unit includes a lifting and turning device 200 control module and a transferring device 300 control module, where the lifting and turning device 200 control module is used to control the lifting and turning device 200 to lift, descend and turn the femto target 100, and the transferring device 300 control module is used to control the transferring device 300 to grab and transfer the femto target 100; the dosing control unit comprises a dosing control module, and the dosing control module is used for controlling the dosing system to add the electrodeposition liquid into the electrodeposition tank 400; the electrodeposition control unit comprises an electrodeposition control module, wherein the electrodeposition control module is used for starting and stopping an electrodeposition process and performing electrodeposition on the sheet; the cleaning control unit includes a water injection control module for injecting water into the washing tub 600, and a cleaning control module for starting and stopping a cleaning process to clean the sheet.

In another embodiment of the present application, the dosing control unit further includes a dispensing control module, the dispensing control module includes a liquid injection module and a stirring module, the liquid injection module is used for controlling the dosing system to inject a solvent into the dispensing device, and the stirring module is used for controlling the dispensing device to dispense by stirring.

In another embodiment of the present application, the control system further comprises a liquid discharge unit including an automatic liquid discharge control module for starting an automatic liquid discharge process to discharge the residual electrodeposition liquid in the electrodeposition bath 400 into the wastewater treatment system for temporary storage.

As shown in fig. 3, an embodiment of the present application provides a large-sized sheet material fixture, where the fixture includes a back plate 110, a cover plate 120, and a plurality of clamping members 130, a plurality of concave holes (not shown) are formed in the back plate 110, and a magnetic attraction member 140 made of a magnetic material is installed in the concave holes, and the sheet material contains a metal that can be attracted by the magnetic material; the cover plate 120 is buckled on the back plate 110, and the cover plate 120 and the back plate 110 are matched with each other to encapsulate the magnetic attraction piece 140; the clamping members 130 are mounted on one side of the cover plate 120, and are used for fixedly clamping the side edges of the sheet material attached to the cover plate 120. Specifically, the clamping members 130 shown in fig. 3 are all installed on the top of the cover plate 120, and the clamping device configured in this way is suitable for clamping the electrode plate substrate, so that the electrode plate substrate is immersed in the electrodeposition liquid in a vertical state for electrodeposition, or is cleaned in a vertical state; if the sheet is clamped by other sheets to perform other processes, the position of the clamping member 130 may be adjusted according to the actual situation.

The usage mode of the clamp in the embodiment and the technical effects thereof are as follows:

a large-sized sheet material is placed on the cover plate 120, and since the sheet material contains a metal that can be attracted by the magnetic material, the magnetic attraction member 140 can attract the sheet material so that the sheet material is closely attached to the back plate 110; meanwhile, the side edge of the sheet material attached to the cover plate 120 is clamped by the clamping pieces 130 arranged on one side edge of the cover plate 120, so that when the clamp clamps the sheet material and performs a series of operations such as processing, transferring or changing the level into the vertical level on a production line, the sheet material cannot shift or fall off, and the sheet material is convenient to detach and install; in addition, since the cover plate 120 and the back plate 110 cooperate to encapsulate the magnetic attraction member 140, liquid can be prevented from entering, so as not to affect the magnetism of the magnetic attraction member 140, for example: in the electrodeposition process, the substrate is required to be clamped by the clamp and immersed in the electrodeposition liquid, or in the electrode slice cleaning process, the substrate is required to be clamped by the clamp, the substrate is cleaned by the cleaning liquid, and the magnetic attraction piece 140 is packaged, so that the influence of the electrodeposition liquid or the cleaning liquid on the magnetic attraction piece 140 can be avoided.

Compared with the conventional clamping device, the clamp provided by the embodiment is used for sucking the metal-containing sheet material through the magnetic attraction piece 140, so that the metal-containing sheet material is tightly attached to the cover plate 120, the clamp is very suitable for clamping the sheet material with large, thin and soft size and material between metal and nonmetal, and meanwhile, the sheet material can be well ensured to be kept flat in the clamping process, and the verticality is ensured in the vertical state, so that if the clamp is applied to the substrate such as the nickel foam in the electrodeposition, the uniformity and consistency of the electrodeposition on the surface of the clamp can be ensured, and the product quality is ensured. In addition, the clamp provided by the embodiment can be applied to other industries for clamping other large-size metal-containing sheet materials, such as machining industries, plastic product machining industries, metal product machining industries and the like, besides being suitable for clamping foam nickel and other base materials in the electrolytic water electrode plate machining process.

It should be noted that the dimensions of the back plate 110 and the cover plate 120, and the distribution, number and size of the magnetic attraction members 140 can be adjusted and designed according to the dimensions and metal content of the sheet material to be held, and those skilled in the art will also know how to design the sheet material according to the above description and the common general knowledge in the art.

In another embodiment of the present application, the back plate 110 and the cover plate 120 are made of plastic, preferably acid and alkali resistant plastic, including but not limited to polypropylene, polyethylene, polytetrafluoroethylene, and the like. The backboard 110 and the cover plate 120 are made of the lightweight material such as plastic, so that the flatness and the verticality of the sheet material in the clamping process can be ensured on the basis of reducing the overall weight of the clamp as much as possible; further, the acid-base resistant plastic can prevent the back plate 110 and the cover plate 120 from being corroded by liquid such as electrodeposition liquid, and the service life of the clamp is prolonged.

In another embodiment of the present application, magnetic attraction 140 is encapsulated by plastic, preferably acid and alkali resistant plastic, including but not limited to polypropylene, polyethylene, polytetrafluoroethylene, and the like. The plastic packaging magnetic attraction piece 140 can avoid being influenced by an electric field and avoid liquid from entering; furthermore, the acid-base resistant plastic can avoid corrosion by liquid such as electrodeposition liquid and the like, and the service life of the clamp is prolonged.

In another embodiment of the present application, the magnetic material is a magnet, preferably a permanent magnet. If the jig is used in an environment where an electric field exists, such as electrodeposition, it is not suitable to use an electromagnet, and therefore a permanent magnet is preferably used.

In another embodiment of the present application, as shown in fig. 4, the fixture further includes a skeleton 150, and the back plate 110 is fixedly mounted on the skeleton 150. The armature 150 may provide a relatively stable and secure planar surface for the back plate 110.

In another embodiment of the present application, as shown in fig. 5, the skeleton 150 includes a planar square frame formed by connecting a plurality of square tubes 151 that are crisscrossed. Square tubes 151 are crisscrossed to form a planar square frame, which serves as a skeleton 150 to provide a light, relatively stable and firm plane for the back plate 110.

In another embodiment of the present application, the square tube 151 is a stainless steel square tube 151. Compared with the square tubes 151 made of other materials, the stainless steel square tubes 151 are light in weight, more resistant to acid and alkali, long in service life and better in support stability for the back plate 110.

In another embodiment of the present application, the square tube 151 is encapsulated by plastic, preferably acid and alkali resistant plastic, including but not limited to polypropylene, polyethylene, polytetrafluoroethylene, and the like. The square tube 151 is encapsulated by plastic, so that the influence on an electric field can be avoided when the clamp is applied to electrodeposition; further, the acid-base resistant plastic is adopted, so that the service life of the clamp can be prolonged, meanwhile, the framework 150 is prevented from being corroded by liquid such as electrodeposition liquid, and the service life of the clamp is prolonged.

In another embodiment of the present application, as shown in fig. 6, 7 and 8, the clamping member 130 includes a clamping plate 131, a wrench 132 and a fixing base 133, wherein the clamping plate 131 is fixedly connected to one end of the wrench 132, the wrench 132 is hinged to the fixing base 133, and the fixing base 133 is fixedly installed on one side of the cover plate 120; the fixed connection means mentioned in this embodiment are in particular detachable connections, such as bolts or screws. The clamping member 130 is used in the following manner: holding the wrench 132 open the clamp 130 and placing the sheet material side under the clamp plate 131, and releasing the wrench 132, the clamp plate 131 presses against the sheet material side and clamps the sheet material.

In another embodiment of the present application, a plurality of clamps 130 are linked together, so that the clamps 130 at both ends of the clamp are opened, and the middle clamp 130 is opened, thereby facilitating the installation and removal of the sheet material. For example, adjacent wrenches 132 or clamping plates 131 are connected to each other by a connecting rod, so that the wrenches 132 at both ends of the clamp are opened, and the middle wrenches 132 are opened, thereby attaching or detaching the sheet material to or from the cover plate 120.

In another embodiment of the present application, as shown in fig. 9, the fixture further includes a conductive copper bar 160 and an electrode holder 170, where the conductive copper bar 160 is installed above the skeleton 150, and when the fixture clamps the electrode sheet substrate and immerses the electrode sheet substrate in the electrodeposition liquid of the electrodeposition tank in a vertical state, under the condition of power-on, the conductive copper bar 160 becomes an anode of an electric field, and performs electrodeposition on the substrate under the action of the electric field in cooperation with a cathode in the electrodeposition tank, so as to manufacture an electrode sheet; electrode holders 170 are installed at both ends of the skeleton 150, and the electrode holders 170 can be used in pairs with the electrode holders 170 of the electrodeposition cell body to conduct current after contact; the electrode holder 170 is further electrically connected to the conductive copper bar 160 to energize the conductive copper bar 160.

In another embodiment of the present application, as shown in fig. 10, the fixture further includes a hanging tab 180, where the hanging tab 180 is located above the skeleton 150, and two hanging tabs are provided, which are located at two ends of the skeleton 150, respectively, for hanging the fixture. The clamp may be hung on the transfer device by means of the hanger 180 for a series of operations such as transferring the sheet material and/or changing the level to vertical.

In an embodiment of the present application, the large-size sheet material fixture provided by the above embodiment is applied to electrodeposition, and specifically, the fixture is used for clamping a large-size sheet material, and the large-size sheet material may be an electrode sheet or an electrode sheet substrate. The specific use mode and the functions of the fixture provided by the embodiment are described below by taking the nickel foam electrode plate base material as an example:

in the production process of the electrolytic electrode plate, foam nickel is generally used as a base material, the used foam nickel base material is very thin, the thickness is generally about 0.5mm, the material is between metal and nonmetal, and the flatness of the base material is difficult to control during the production and processing, so that the consistency of the electrode plate produced by the base material is difficult to ensure. Meanwhile, in the electrode sheet production process, a series of operations such as processing, transferring or changing the level into the vertical level need to be carried out on the production line on the base material, and the large and thin sheet is a product which is inconvenient to take and put independently. The fixture according to the above embodiment of the present application is used to hold the nickel foam, and the nickel foam contains metal nickel, so the magnetic attraction piece 140 can attract the nickel foam, so that the nickel foam is closely attached to the back plate 110; meanwhile, the clamping member 130 clamps the side edge of the nickel foam attached to the cover plate 120, so that when the clamp clamps the nickel foam and performs a series of operations such as processing, transferring or changing the level to be vertical on the electrodeposition production line, the nickel foam cannot shift or fall off, and meanwhile, the nickel foam is convenient to detach and install. In addition, since the cover plate 120 and the back plate 110 cooperate to encapsulate the magnetic attraction member 140, liquid (such as electrodeposition liquid, cleaning liquid, etc.) can be prevented from entering, so as not to affect the magnetism of the magnetic attraction member 140; when the fixture is applied to electrodeposition, the whole structure of the fixture is preferably made of light materials, for example, the back plate 110 and the cover plate 120 are made of acid-base resistant plastics, and the framework 150 is made of stainless steel square tubes 151, so that the flatness of the sheet and the perpendicularity after immersing in liquid in the clamping process can be ensured on the basis of the smallest weight as possible, and the uniformity and consistency of electrodeposition on the surface of the material are ensured.

In another embodiment of the present application, the process comprises the steps of:

and (3) feeding: the lifting and overturning device 200 and the transferring device 300 are controlled by the feeding and discharging control unit, the sheet is fixed on the flying target 100 in a horizontal state, the flying target 100 is driven to ascend to a second preset height by the lifting and overturning device 200, and the flying target 100 is overturned to change the sheet from the horizontal state to the vertical state;

adding the medicine: the electro-deposition solution is added into the electro-deposition tank 400 by controlling a dosing system through a dosing control unit;

electrodeposition: the flying target 100 loaded with the sheet is transported to and placed on a preset electrodeposition station in the electrodeposition bath 400 by the transport device 300, and the electrodeposition process is controlled to start and stop by the electrodeposition control unit to perform electrodeposition on the sheet;

cleaning: after the electrodeposition is finished, transferring and placing the flying target 100 loaded with the sheet on a preset cleaning station in a cleaning system through a transfer device 300, and controlling the cleaning system to clean the sheet after the electrodeposition is finished through a cleaning control unit;

and (3) drying: after the cleaning, the targets 100 loaded with the sheets are transported and placed on a preset drying station in a drying system by the transporting device 300, and the sheets are subjected to drying treatment.

In another embodiment of the present application, the feeding step further includes: the elevating turning apparatus 200 drives the targets 100 to descend to a first preset height, and then fixes the sheet on the targets 100 in a horizontal state. The first preset height refers to an operation height that allows the sheet to be manually fixed to the target 100.

In another embodiment of the present application, the process further comprises: the transfer device 300 removes the targets 100 with sheets from the lifting and turning device 200 and transfers the targets to the sheet storage system for buffering.

In another embodiment of the present application, the process further comprises: according to the loading mode, each of the targets 100 is loaded with one sheet, and a plurality of sheets, preferably 10 to 30 sheets, are buffered in the sheet stock storage system.

In another embodiment of the present application, the process further comprises, prior to dosing, performing a liquid injection, dispensing comprising: injecting solvent and medicament into the dispensing device, and stirring to prepare the electrodeposition liquid. Wherein the solvent is selected from water, preferably distilled water, deionized water, pure water, ultrapure water, etc., and the raw material reagent required for preparing the electrodeposition liquid by the medicament. In another embodiment of the application, the liquid injection module is used for controlling the medicine adding system to inject the solvent into the medicine dispensing device, and the stirring module is used for controlling the medicine dispensing device to dispense medicine in a stirring mode; the medicament can be added manually after being quantitatively packaged in a laboratory.

In another embodiment of the present application, the process further comprises water injection, the water injection comprising: the water injection into the washing tub 600 is controlled by a water injection control module in the washing control unit. Typically, water is injected into the rinse tank 600 first, and if the operator visually inspects that the water in the rinse tank 600 needs to be replaced, the water is automatically injected into the rinse tank 600. The water in the rinsing bath 600 is pure water or ultrapure water, and generally, pure water is used to clean the sheet first, then ultrapure water is used to clean the sheet, and the specific cleaning times of pure water and ultrapure water are adjusted and set according to actual conditions.

In another embodiment of the present application, the process further comprises: several sheets buffered in the sheet storage system are sequentially transferred and placed on a preset electrodeposition station in the electrodeposition bath 400 by the transfer device 300 for electrodeposition.

In another embodiment of the present application, the cleaning further comprises: the transfer device 300 vertically lifts the targets 100 to a preset cleaning station, drives the targets 100 to descend, puts the sheets into the washing tank 600 for washing, and after a certain time, the transfer device 300 lifts the targets 100 into the rest of the washing tanks 600 in sequence for stepped countercurrent cleaning, thus completing the cleaning work. In another embodiment of the present application, the washing time is generally set to 1 to 30 minutes, preferably 5 to 20 minutes.

In another embodiment of the present application, the drying comprises: after the cleaning, the transfer device 300 transfers and hangs the targets 100 loaded with the sheet on a preset drying station in the drying system, and drips.

In another embodiment of the present application, the process further comprises draining, the draining comprising: after the electrodeposition is finished, the automatic liquid discharge equipment is controlled by the liquid discharge unit to discharge the residual electrodeposition liquid in the electrodeposition tank 400 into a wastewater treatment system for temporary storage.

In another embodiment of the present application, the process further comprises: and after all the sheets cached in the sheet storage system are electrodeposited, draining.

In another embodiment of the present application, the sheet is nickel foam.

In another embodiment of the present application, the sheet has a thickness of 0.3 to 0.6mm and an area of 0.5m or more ² Preferably not less than 1.0m ² More preferably 1.0 to 5.0m ² 。

In another embodiment of the present application, the electrode sheet is an oxygen producing electrode sheet.

In summary, the process provided by the embodiment of the invention can well ensure that the sheet material is kept flat in the clamping process and the verticality is ensured in the vertical state by clamping the sheet material which is made of the nickel foam and has large, thin and soft size and is between metal and nonmetal by using the flying target, so that the uniformity and consistency of the electrodeposition on the surface of the sheet material are ensured; the lifting turnover device and the transfer device are automatically controlled by the control system to turn and transfer the sheet, so that automatic feeding and discharging are realized, and procedures such as dosing, electrodeposition, cleaning, drying and the like are automatically performed, thereby realizing automation of the production process of manufacturing the electrode sheet by using the light, thin and soft large sheet (such as foam nickel) as a base material and processing and manufacturing the electrode sheet by using an electrodeposition process, reducing labor cost and improving production efficiency.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. An electrode sheet electrodeposition process, characterized by comprising the steps of:

2. The electrode sheet electrodeposition process according to claim 1, comprising the steps of:

cleaning: after the electrodeposition is finished, transferring the flying target loaded with the sheet material through a transfer device and placing the flying target on a preset cleaning station in a cleaning system, and controlling the cleaning system to clean the sheet material after the electrodeposition is finished through a cleaning control unit; and (3) drying: after the cleaning is finished, the flying target loaded with the sheet is transported through a transporting device and placed on a preset drying station in a drying system, and the sheet is dried.

3. The electrode sheet electrodeposition process according to claim 2, wherein: the feeding step further comprises the following steps: the lifting turnover device drives the flying target to descend to a first preset height, and then the sheet is fixed on the flying target in a horizontal state.

4. The electrode sheet electrodeposition process according to claim 1, wherein: the flying target comprises a clamp, the clamp comprises a back plate, a cover plate and a plurality of clamping pieces, a plurality of concave holes are formed in the back plate, magnetic attraction pieces made of magnetic materials are arranged in the concave holes, and the sheet contains metal capable of being attracted by the magnetic materials; the cover plate is buckled on the back plate, and the cover plate and the back plate are matched with each other to encapsulate the magnetic attraction piece; the clamping pieces are arranged on one side of the cover plate and used for fixedly clamping and attaching the side edges of the sheet materials on the cover plate.

5. The electrode sheet electrodeposition process according to claim 2, wherein: the process further comprises: and the transfer device takes down the flying target filled with the sheet from the lifting and turning device and transfers the flying target to the sheet storage system for caching.

6. The electrode sheet electrodeposition process according to claim 2, wherein: the process also comprises the steps of injecting liquid and dispensing medicine before adding medicine, wherein the injecting liquid and dispensing medicine comprises the following steps: injecting solvent and medicament into the dispensing device, and stirring to prepare the electrodeposition liquid.

7. The electrode sheet electrodeposition process according to claim 2, wherein: the process further comprises water injection, the water injection comprising: and controlling water to be injected into the washing tank through a water injection control module in the washing control unit.

8. The electrode sheet electrodeposition process according to claim 2, wherein: the process further includes a liquid discharge comprising: after the electrodeposition is finished, the automatic liquid discharge equipment is controlled by the liquid discharge unit to discharge the residual electrodeposition liquid in the electrodeposition tank into the wastewater treatment system for temporary storage.

9. The electrode sheet electrodeposition process according to claim 1, wherein: the sheet is foamed nickel.

And/or the thickness of the sheet is 0.3-0.6 mm, and the area is more than or equal to 0.5m ² 。

10. Use of an electrodeposition process according to any one of claims 1 to 9 in the manufacture of electrode sheets.