New energy automobile battery nickel-plated copper pole piece and processing equipment and method

Abstract

The invention provides a new energy automobile battery nickel-plated copper pole piece and machining equipment and method. The machining method comprises the steps that S1, a copper strip is pretreated, and the copper strip penetrates through all groove bodies for pretreatment; s2, nickel plating is conducted on the copper strip, and the copper strip penetrates through all nickel plating tank bodies; S2.1, electroplating treatment is conducted, specifically, the washed copper strip is input into a plurality of electroplating tanks, wavy exhaust plates are additionally arranged in the electroplating tanks, and inert gas can be exhausted through the exhaust plates to form turbulent flow; s2.2, passivating treatment is carried out; s2.3, carrying out drying treatment; s3, pole piece processing: S3.1, corona treatment; s3.2, coating treatment is carried out; s3.3, carrying out drying treatment; s3.4, carrying out slitting treatment; s4, maintaining the tank body and replacing the copper strip: S4.1, stopping the machine after a roll of copper strip is released by the discharging machine; and S4.2, the tank body maintenance equipment moves along all the tank bodies, a hoisting assembly in the tank body maintenance equipment sequentially lifts covering assemblies of all the tank bodies upwards, and a tank body cleaning assembly in the tank body maintenance equipment sequentially cleans residues in all the tank bodies. The tank body is regularly cleaned through the tank body maintenance equipment, impurity pollution is reduced, and the quality of the pole piece is guaranteed.

Description

[0001] This application is a divisional application of the invention application filed on July 31, 2025, with Chinese application number 2025110683258, entitled "A copper-plated nickel electrode sheet for a new energy vehicle battery and a processing method thereof". Technical Field

[0002] This invention relates to the field of battery electrode processing technology, specifically to a copper-nickel plated electrode for new energy vehicle batteries and processing equipment and methods. Background Technology

[0003] In the production process of copper-nickel plated electrode sheets for new energy vehicle batteries, the electrolysis step is the core link that determines the surface quality and performance of the electrode sheet. Through the electrolysis reaction, a uniform and dense pretreatment layer is formed on the surface of the copper strip, which directly affects the adhesion of the subsequent nickel plating layer and the electrochemical performance of the electrode sheet. During long-term operation, impurities such as metal debris, anode sludge, and unreacted electrolyte crystals generated by the electrolysis reaction tend to accumulate at the bottom of the existing electrolytic cells. This accumulation not only alters the local concentration and flowability of the electrolyte but may also be adsorbed onto the copper strip surface during electrolysis, leading to defects such as spots and pinholes on the electrodes. More importantly, existing cleaning methods have insurmountable limitations: cleaning requires first draining the electrolyte from the cell, resulting in electrolyte waste and additional wastewater treatment to prevent contamination; subsequent cleaning relies on manual entry into the bottom of the cell, which is cumbersome and incomplete due to space constraints, and each cleaning session is time-consuming. Excessive cleaning time directly leads to a forced extension of the electrolytic cell cleaning cycle. During this period, impurities continue to accumulate at the bottom, gradually deteriorating the uniformity of the electrolyte composition. Increased variations in the thickness and surface roughness of the electrolyte layer between different batches of electrodes affect the consistency of the electrolyte quantity on the electrodes. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a copper-nickel plated electrode sheet for new energy vehicle batteries, as well as processing equipment and methods, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A processing equipment for copper-nickel plated electrode sheets for new energy vehicle batteries, including a tank and maintenance equipment; The tank maintenance equipment includes a tank cleaning component and a hoisting component; the hoisting component is used to lift the corresponding cover component of the tank, and the tank cleaning component is used to enter the tank to clean the residue after the cover component is lifted. The tank cleaning assembly includes a longitudinal opening and closing guide rail connected to the hoisting assembly; two symmetrically arranged first and second closing components are slidably installed on the bottom surface of the longitudinal opening and closing guide rail, and a cleaning component is installed at the bottom end of both the first and second closing components; after the first and second closing components cooperate, a closed cleaning cavity is formed at the bottom of the tank, which is used to avoid interference between the cleaning component and the upper layer of electroplating solution inside the tank when cleaning the contact plate inside the tank.

[0006] The tanks in the processing equipment include an oil removal tank, a water washing tank, a first electroplating tank, a second electroplating tank, and a passivation tank arranged in sequence. The passivation tank is provided with a first drying oven, a corona machine, a coating machine, a second drying oven, and a slitting machine arranged sequentially on the side opposite to the second electroplating tank.

[0007] A method for processing copper-plated nickel electrode sheets for new energy vehicle batteries includes the following steps: S1. Copper strip pretreatment: The copper strip passes through various pretreatment tanks. S1.1 The feeder releases the copper strip at a uniform speed into the degreasing tank for ultrasonic and electrolytic degreasing. S1.2 Water washing treatment: After degreasing, the copper strip is quickly fed into the water washing tank to remove the residual electrolyte and degreasing agent on the surface of the copper strip. S2, Copper strip is nickel plated, and the copper strip passes through each nickel plating tank: S2.1 Electroplating treatment: The washed copper strip is fed into a multi-stage electroplating tank. A corrugated exhaust plate is added to the electroplating tank. The exhaust plate can discharge inert gas to form turbulence, which accelerates ion diffusion and carries away the hydrogen gas generated on the cathode surface. The temperature of the electroplating solution is maintained at 55-65℃, the pH value is controlled at 4.0-5.0, and the current density is 3-5A / dm². S2.2 Passivation treatment: The nickel-plated copper strip is fed into the passivation tank to form a dense passivation film on the surface of the nickel-plated copper strip to prevent oxidation of the nickel plating layer; S2.3 Drying treatment: The nickel-plated copper strip is transferred from the passivation tank to the first drying box; S3, Electrode Processing: S3.1 Corona Treatment: The nickel-plated copper strip is subjected to corona treatment in a corona machine to improve the surface roughness and surface energy of the nickel-plated copper strip. S3.2 Coating treatment: The coating machine evenly coats the electrode paste onto the surface of the nickel-plated copper strip, and the coating thickness is controlled at 20-50μm; S3.3 Drying treatment: The nickel-plated copper strip coated with electrode paste is passed through a second drying oven to allow the solvent in the electrode paste to fully evaporate and form a firm electrode coating. S3.4 Slitting process: The dried copper-plated nickel battery strip is slitted to obtain copper-plated nickel battery electrode sheets; S4. Tank maintenance and copper strip replacement: S4.1 The feeding machine stops after releasing one roll of copper strip; S4.2 The tank maintenance equipment moves along each tank, and the hoisting components inside the tank maintenance equipment lift the cover components of each tank in sequence. The tank cleaning components inside the tank maintenance equipment clean the residues in each tank in sequence. S4.3 After cleaning, thread the new copper strip through each tank. Once it has passed through, close the cover assembly.

[0008] Furthermore, the multi-stage electroplating tank includes a first electroplating tank and a second electroplating tank; The electroplating solution in the first electroplating tank includes: nickel sulfate 250-300 g / L, boric acid 30-40 g / L, nickel chloride 45-55 g / L, and wetting agent 0.05-0.1 g / L; The electroplating solution in the second electroplating tank includes: nickel sulfate 220-260 g / L, boric acid 35-45 g / L, nickel chloride 50-60 g / L, p-toluenesulfonamide 3-5 g / L, and surfactant 0.1-0.2 g / L.

[0009] Furthermore, the electrode slurry includes a positive electrode slurry and a negative electrode slurry; The positive electrode slurry comprises: 80-90 wt% lithium iron phosphate, 3-5 wt% carbon black, and the balance being binder and dispersant; The negative electrode slurry comprises: 90-95 wt% graphite, 2-3 wt% acetylene black, and the balance being binder and dispersant.

[0010] Furthermore, the exhaust plate includes a base, the surface of which is provided with a wave-shaped contact plate, and a jet head is embedded at the crest of the contact plate. An air guide chamber is provided inside the base, and the air guide chamber is connected to each jet head. The outside of the air guide chamber is connected to an air source through a connector.

[0011] Furthermore, a guide gap is provided between two adjacent tanks, and a guide roller assembly is installed in the guide gap. The covering assembly includes a transparent cover plate, a first pressure roller, a second pressure roller, and a positioning frame. The transparent cover plate fits onto the top of the tank. A handle is provided in the middle of the surface of the transparent cover plate. A positioning frame is provided in the middle of the bottom surface of the transparent cover plate. The bottom of the positioning frame is symmetrically provided with a first pressure roller and a second pressure roller along the copper strip conveying direction. The first pressure roller and the second pressure roller are immersed in the tank by pressing the copper strip. The copper strip passes through a set of guide roller assemblies, the bottom surface of the first pressure roller, the bottom surface of the second pressure roller, and another set of guide roller assemblies in sequence. The hoisting assembly includes a top rail, which is located above the first electroplating tank and the second electroplating tank. A first traveling trolley and a second traveling trolley are slidably mounted on the bottom of the top rail. A first drive rod is vertically mounted on the bottom surface of the first traveling trolley. A first hanging plate is mounted at the bottom end of the first drive rod. A transverse opening and closing guide rail is mounted on the bottom surface of the first hanging plate. Claws are symmetrically slidably mounted inside the transverse opening and closing guide rail. Two sets of claws are used to hold the handle. The bottom of the second traveling trolley is vertically equipped with a second drive rod, and the bottom end of the second drive rod is equipped with a second hanging plate. The bottom surface of the second hanging plate is slidably and symmetrically equipped with a tank cleaning component. After the gripper lifts the cover assembly, the tank cleaning component enters the tank to perform cleaning operations.

[0012] Furthermore, the tank cleaning assembly includes a longitudinal opening and closing guide rail, which is located on the bottom surface of the second hanging plate. A first sealing component and a second sealing component are symmetrically and slidably installed on the bottom surface of the longitudinal opening and closing guide rail. A cleaning component is installed at the bottom end of both the first sealing component and the second sealing component. The first sealing component and the second sealing component are used to cooperate to form a closed cleaning cavity at the bottom of the electroplating tank, so as to avoid the cleaning component from affecting the upper electroplating solution when cleaning the contact plate.

[0013] Furthermore, the first closing component includes a first moving block, which is slidably installed inside one end of the longitudinal opening and closing guide rail. A third driving rod is vertically provided on the bottom surface of the first moving block, a first vertical plate is vertically provided at the bottom end of the third driving rod, a first longitudinal strip is vertically provided at the bottom end of the first vertical plate, and multiple sets of spaced and laterally extended first barrier plates are vertically provided on the inner wall of the first longitudinal strip. The second enclosure component includes a second movable block, which is slidably installed inside the other end of the longitudinal opening and closing guide rail. A fourth drive rod is vertically provided on the bottom surface of the second movable block. A second vertical plate is vertically provided at the bottom end of the fourth drive rod. A second longitudinal strip is vertically provided at the bottom end of the second vertical plate. Multiple sets of second barrier plates that are spaced apart and extend laterally are vertically provided on the inner wall of the second longitudinal strip. The first and second barrier plates are staggered and alternately descend to connect as a complete barrier surface, thereby forming a closed cleaning cavity below.

[0014] Furthermore, the cleaning component includes a longitudinal travel guide rail and a suction box. The bottom surfaces of the first and second longitudinal blocks are both provided with longitudinal travel guide rails. The suction box is arranged vertically, and the top surface of the suction box is provided with a travel block. The travel block is slidably embedded inside the longitudinal travel guide rail. The bottom surface of the suction box has perforations at both ends, and multiple suction holes are opened in the middle of the bottom surface of the suction box. The suction holes are connected to the suction box. The top surface of the suction box is connected to the suction pump box through a hose. The suction pump box has elastic scraping components installed inside the two sets of perforations. The elastic scraping components are in elastic contact with the contact plate.

[0015] Furthermore, the elastic scraping component includes movable columns, a lower scraper, an upper floating plate, and a scissor frame. Each set of movable columns slides vertically through each set of holes. The bottom ends of the two sets of movable columns are provided with lower scrapers, which are spaced apart below multiple sets of suction holes. The upper floating plate slides vertically inside the suction box. The top ends of the two sets of movable columns are connected to the upper floating plate. The bottom of the scissor frame slides inside the upper floating plate, and the top end slides inside the top surface of the suction box. The bottom end of the lower scraper is conical. The lower scraper is used to longitudinally move and clean the wavy contact plate. The scissor frame is used to elastically open and close to support the lower scraper and agitate the slurry in the suction box. The scissor frame includes a first rod and a second rod. The middle part of the first rod is rotatably connected to the middle part of the second rod, and a torsion spring is installed at the rotatable connection. The bottom ends of the first rod and the second rod are slidably connected to floating plates. The top ends of the first rod and the second rod are slidably connected to the inner top surface of the suction box. The outer walls of the first rod and the second rod are both vertically provided with stirring rods.

[0016] A copper-plated nickel electrode sheet for a new energy vehicle battery, wherein the copper-plated nickel electrode sheet is manufactured using the aforementioned processing method for copper-plated nickel electrode sheets for new energy vehicle batteries.

[0017] This invention provides a copper-nickel plated electrode sheet for new energy vehicle batteries, as well as processing equipment and methods. Compared with the prior art, it has the following advantages: 1. The inert gas is discharged through the corrugated exhaust plate to form turbulence, which can accelerate the uniform diffusion of ions and efficiently carry away hydrogen gas, thereby controlling the coating thickness deviation, reducing the rate of defects such as pinholes and pits, and making the coating crystallize densely.

[0018] 2. Regularly clean the tank using tank maintenance equipment to reduce impurities and ensure electrode quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the processing method of the present invention is shown; Figure 2 A schematic diagram of the production line structure for processing copper-plated nickel electrodes for batteries according to the present invention is shown. Figure 3 A schematic diagram of the hoisting assembly and tank cleaning assembly of the present invention is shown; Figure 4 This diagram shows the structure of the cover assembly of the present invention in the state of being covered by an electrolytic cell; Figure 5 The diagram shows the structure of the first and second sealing components of the present invention; Figure 6 A schematic diagram of the structure of the first enclosed component of the present invention is shown; Figure 7 A schematic diagram of the internal structure of the cleaning component of the present invention is shown; Figure 8 It shows Figure 5 A magnified structural diagram at point A; Figure 9 A schematic diagram of the scissor frame structure of the present invention is shown; Figure 10 A schematic diagram of the floating plate structure of the present invention is shown; As shown in the figure: 110. Degreasing tank; 111. Feeding machine; 120. Washing tank; 130. First electroplating tank; 140. Second electroplating tank; 150. Passivation tank; 160. First drying oven; 170. Corona treatment machine; 180. Coating machine; 190. Second drying oven; 191. Slitting machine. 200. Exhaust plate; 210. Base; 220. Contact plate; 230. Jet nozzle; 240. Air guide chamber. 300. Guide notch; 310. Guide roller assembly. 400. Cover assembly; 410. Transparent cover; 411. Handle; 420. Positioning bracket; 430. First pressure roller; 440. Second pressure roller. 500. Lifting assembly; 510. Top rail; 511. First traveling trolley; 512. Second traveling trolley; 520. First drive rod; 530. First lifting platform; 540. Lateral opening and closing guide rail; 541. Gripper; 550. Second drive rod; 560. Second lifting platform. 600. Tank cleaning assembly; 610. Longitudinal opening and closing guide rail. 620. First enclosing component; 621. First moving block; 622. Third drive rod; 623. First vertical plate; 624. First longitudinal strip block; 625. First barrier plate. 630. Second enclosure component; 631. Second moving block; 632. Fourth drive rod; 633. Second vertical plate; 634. Second longitudinal strip block; 635. Second barrier plate. 700. Cleaning components; 710. Longitudinal travel guide rail; 720. Suction box; 721. Traveling block; 722. Perforation; 723. Suction port; 730. Suction pump box; 731. Hoses. 740. Elastic scraping component; 741. Movable column; 742. Lower scraper; 743. Upper floating plate; 744. Scissor frame; 745. First rod; 746. Second rod; 747. Stirring rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1 Combination Figures 1-10 As shown, the present invention provides a processing equipment and method for copper-plated nickel electrode sheets for new energy vehicle batteries, comprising the following steps: S1. Copper strip pretreatment: The copper strip passes through various pretreatment tanks. S1.1 Ultrasonic Degreasing: The copper strip is released from the feeder and fed into the ultrasonic degreasing tank at a uniform speed. The ultrasonic frequency is set to 40kHz, the power density is 0.3-0.5W / cm², and the degreasing time is controlled at 3-5 minutes. The cavitation effect generated by ultrasonic vibration can effectively destroy the molecular structure of the oil on the surface of the copper strip, causing it to detach from the surface of the copper strip, thus achieving efficient degreasing. The degreasing agent in the degreasing tank is an environmentally friendly alkaline degreasing agent. S1.2 Electrolytic Degreasing: After exiting the ultrasonic degreasing tank, the copper strip is immediately fed into the electrolytic tank for secondary degreasing. The electrolytic tank uses bipolar electrodes, the electrolyte temperature is maintained at 50-60℃, the current density is set at 2-3 A / dm², and the electrolysis time is 2-3 minutes. The electrolyte components include sodium hydroxide, sodium carbonate, sodium phosphate, etc., and the agitation caused by the bubbles generated during electrolysis further removes residual oil and impurities from the surface of the copper strip. S1.3 Water Washing Treatment: After electrolytic degreasing, the copper strip is quickly fed into a water washing tank. The water temperature is controlled at 20-30℃, the water flow rate is 0.5-1m / s, and the washing time is 1-2 minutes. Water washing removes residual electrolyte and degreasing agent from the surface of the copper strip, preventing them from adversely affecting the subsequent nickel plating process. S2, Copper strip is nickel plated, and the copper strip passes through each nickel plating tank: S2.1 Electroplating Treatment: The washed copper strip is fed into the electroplating tank. A corrugated exhaust plate is added to the electroplating tank to discharge inert gas (such as nitrogen). The gas flow rate is controlled at 5-10 L / min to create turbulence, accelerate ion diffusion, and simultaneously carry away the hydrogen gas evolved on the cathode surface. The electroplating solution temperature is maintained at 55-65℃, the pH value is controlled at 4.0-5.0, and the current density is 3-5 A / dm². A nickel layer is uniformly plated on both sides of the copper strip. S2.2 Passivation Treatment: The nickel-plated copper strip is placed into a passivation tank. The passivation solution uses trivalent chromium passivating agent, the temperature is controlled at 25-35℃, and the immersion time is 1-2 minutes. Through passivation treatment, a dense passivation film is formed on the surface of the nickel-plated copper strip, effectively preventing oxidation of the nickel plating layer and improving the corrosion resistance of the electrode. S2.3 Drying treatment: The nickel-plated copper strip is transferred from the passivation tank to the first drying box. The temperature is set to 80-100℃ and the drying time is 5-8 minutes to ensure that the surface moisture of the nickel-plated copper strip is completely evaporated and to avoid moisture residue causing the nickel plating layer to rust. S3, Electrode Processing: S3.1 Corona Treatment: The nickel-plated copper strip is subjected to a corona treatment machine with an output voltage set to 15-20kV and a processing speed controlled at 5-10m / min. Corona treatment improves the surface roughness and surface energy of the nickel-plated copper strip, enhancing the adhesion between the electrode paste and the copper strip surface. S3.2 Coating Process: The coating machine evenly applies electrode slurry to the surface of the nickel-plated copper strip. The coating speed is set to 3-5 m / min, and the coating thickness is precisely controlled between 20-50 μm according to the battery design requirements. A precision metering pump is used to deliver the electrode slurry to ensure a stable slurry flow rate. S3.3 Drying Treatment: The nickel-plated copper strip coated with electrode paste is passed through a drying oven. The drying oven uses segmented temperature control: the first segment temperature is set at 60-80℃, the middle segment at 80-100℃, and the last segment at 100-120℃, with a drying time of 10-15 minutes. Through gradual temperature increase during drying, the solvent in the electrode paste is fully evaporated, forming a firm electrode coating. S3.4 Slitting Process: The dried copper-plated nickel battery strips are slitted using a high-precision slitting machine, with the slitting size accuracy controlled within ±0.1mm. During the slitting process, the wear of the slitting blades is monitored in real time, and worn blades are replaced promptly to ensure that the edges of the slitted electrode sheets are neat and burr-free. The slitted copper-plated nickel electrode sheets are then classified and packaged according to specifications.

[0023] S4. Tank maintenance and copper strip replacement: S4.1 The feeding machine stops after releasing one roll of copper strip; S4.2 The tank maintenance equipment moves along each tank, and the hoisting components inside the tank maintenance equipment lift the cover components of each tank in sequence. The tank cleaning components inside the tank maintenance equipment clean the residues in each tank in sequence. S4.3 After cleaning, thread the new copper strip through each tank. Once it has passed through, close the cover assembly.

[0024] In this embodiment, the multi-stage electroplating tank includes a first electroplating tank and a second electroplating tank; The electroplating solution in the first electroplating tank includes: Main salt: 250-300 g / L nickel sulfate, which provides the source of nickel ions and is a key component for the formation of nickel plating during the nickel plating process. Buffer: Boric acid 30-40 g / L, used to stabilize the pH value of the electroplating solution. During the electroplating process, the reduction reaction of nickel ions at the cathode will cause the local solution pH value to rise. Boric acid can buffer this change and maintain the pH value of the plating solution at 4.0-5.0, ensuring uniform and stable coating quality.

[0025] Anode activator: Nickel chloride 45-55 g / L, which helps dissolve the nickel plate of the anode, ensures normal anode operation, and replenishes nickel ions consumed during electroplating. Simultaneously, chloride ions improve the conductivity and dispersibility of the plating solution, enhancing the uniformity of the coating. Additives: An appropriate amount of sodium dodecyl sulfate is used as a wetting agent to reduce the surface tension of the plating solution, allowing the plating solution to better wet the copper strip surface and reduce defects such as pinholes and pits. The electroplating solution in the second electroplating tank includes: Active material: Graphite (natural or artificial graphite) 90-95 wt%, serving as the main anode material. During battery charging, it accepts lithium ions extracted from the positive electrode and embeds them into its crystal lattice. During discharge, the lithium ions are extracted from the graphite lattice and return to the positive electrode. The crystallinity, particle size, and surface properties of graphite have a significant impact on the battery's initial charge-discharge efficiency, cycle life, and rate performance. Conductive agent: Acetylene black 2-3wt%, which constructs a conductive network in the negative electrode, improves electron conduction, and ensures efficient operation of the negative electrode during charging and discharging. Binder: A composite system of 2-3 wt% styrene-butadiene rubber (SBR) and 1-2 wt% sodium carboxymethyl cellulose (CMC). SBR possesses excellent flexibility and bonding properties, effectively binding active materials and conductive agents; CMC adjusts the viscosity of the slurry, improving its stability and coating performance. The combined use of these two components ensures electrode structural stability while providing the negative electrode slurry with good processability. Dispersant: Sodium polyacrylate 0.3-0.8wt%, used to uniformly disperse active materials and conductive agents, prevent them from agglomerating in the slurry, ensure the uniformity and stability of the negative electrode slurry, and thus improve the quality of the negative electrode sheet and battery performance.

[0026] Example 2 Existing copper-nickel plating electrode processing equipment for new energy vehicle batteries suffers from problems such as low plating efficiency, hydrogen adhesion leading to plating defects, and difficulties in cleaning and maintenance. For example, insufficient gas removal from traditional electroplating tanks results in slow ion diffusion and poor plating uniformity; manual cleaning of the tank requires stopping the machine and draining the electrolyte, which is inefficient and prone to contamination. To solve these problems, the following solution is proposed: Combination Figures 1-6 As shown, a processing equipment for copper-nickel plated electrode sheets for new energy vehicle batteries includes an oil removal tank 110, a water washing tank 120, a first electroplating tank 130, a second electroplating tank 140, a passivation tank 150, a first drying oven 160, a corona machine 170, a coating machine 180, a second drying oven 190, and a slitting machine 191 arranged in sequence. A wave-shaped exhaust plate 200 is provided in the first electroplating tank 130 and the second electroplating tank 140. The exhaust plate 200 can discharge inert gas to form turbulence, accelerate ion diffusion, and carry away the hydrogen gas evolved on the cathode surface. It also includes tank maintenance equipment, which includes a hoisting assembly 500, a cover assembly 400, a cleaning assembly, and an exhaust plate 200; The exhaust plate 200 includes a base 210, the surface of which is provided with a wave-shaped contact plate 220, and a jet head 230 is embedded at the crest of the contact plate 220. An air guide chamber 240 is opened inside the base 210, and the air guide chamber 240 is connected to each jet head 230. The outside of the air guide chamber 240 is connected to an air source through a connector. A guide gap 300 is provided between two adjacent tanks. A guide roller group 310 is installed in the guide gap 300. The cover assembly 400 includes a transparent cover plate 410, a first pressure roller 430, a second pressure roller 440, and a positioning frame 420. The transparent cover plate 410 is fitted to cover the top of the tank. A handle 411 is provided in the middle of the surface of the transparent cover plate 410. A positioning frame 420 is provided in the middle of the bottom surface of the transparent cover plate 410. The bottom of the positioning frame 420 is symmetrically provided with the first pressure roller 430 and the second pressure roller 440 along the copper strip conveying direction. The first pressure roller 430 and the second pressure roller 440 are immersed in the tank by pressing copper strip. The copper strip passes through a set of guide roller groups 310, the bottom surface of the first pressure roller 430, the bottom surface of the second pressure roller 440, and another set of guide roller groups 310 in sequence. The hoisting assembly 500 includes a top rail 510, which is located above the first electroplating tank 130 and the second electroplating tank 140. A first traveling trolley 511 and a second traveling trolley 512 are slidably mounted on the bottom of the top rail 510. A first driving rod 520 is vertically mounted on the bottom surface of the first traveling trolley 511. A first hanging plate 530 is mounted at the bottom end of the first driving rod 520. A transverse opening and closing guide rail 540 is mounted on the bottom surface of the first hanging plate 530. Claws 541 are symmetrically slidably mounted inside the transverse opening and closing guide rail 540. Two sets of claws 541 are used to hold the handle 411. The bottom of the second traveling trolley 512 is vertically provided with a second drive rod 550, and the bottom end of the second drive rod 550 is provided with a second hanging plate 560. The bottom surface of the second hanging plate 560 is slidably and symmetrically provided with a tank cleaning component. After the gripper 541 lifts the cover assembly 400, the tank cleaning component 600 enters the tank to perform cleaning operations.

[0027] In the above scheme: 1. The corrugated exhaust plates 200 in the first electroplating tank 130 and the second electroplating tank 140 discharge inert gas through the jet nozzles 230, forming turbulence and accelerating the ion diffusion rate. Simultaneously, the turbulence carries away hydrogen gas evolved from the cathode surface, preventing hydrogen bubbles from adhering and causing pitting or porosity in the plating layer. The wave crest structure of the corrugated contact plate 220 increases the gas contact area, further enhancing the exhaust effect; the corrugated contact plate 220 can also form an incomplete bottom surface, further increasing the turbulence effect. 2. The horizontal opening and closing guide rail 540 can drive the gripper 541 to close and clamp the lifting cover assembly 400, releasing the threading space; after the threading is completed, the first pressure roller 430 and the second pressure roller 440 of the cover assembly 400 precisely press down the copper strip through the positioning frame 420 to ensure that the copper strip is completely immersed in the electrolyte, avoid local unplated areas, and improve the consistency of the plating layer. 3. The tank cleaning component cleans residues within the closed cleaning chamber without draining the electrolyte, effectively shortening the cleaning time per cycle.

[0028] Traditional electroplating tank cleaning involves cumbersome recirculation if the electroplating solution is drained, and wasteful if it is not used. Direct cleaning of the tank's interior, however, fails to isolate the bottom cleaning area, leading to contamination of the upper electroplating solution and requiring frequent electrolyte replacement, increasing costs. In this embodiment, the tank cleaning assembly includes a longitudinal opening and closing guide rail 610, located on the bottom surface of the second hanging plate 560. A first sealing component 620 and a second sealing component 630 are symmetrically slidably mounted on the bottom surface of the longitudinal opening and closing guide rail 610. Cleaning components 700 are installed at the bottom ends of both the first and second sealing components 620 and 630. The first and second sealing components 620 cooperate to form a closed cleaning chamber at the bottom of the electroplating tank, preventing the cleaning components 700 from affecting the upper electroplating solution when cleaning the contact plate 220.

[0029] In the above scheme, the longitudinal opening and closing guide rail 610 drives the first and second sealing components 630 to form a closed cleaning chamber at the bottom of the electroplating tank. After the first sealing component 620 and the second sealing component 630 are connected, the cleaning area is isolated from the upper electroplating solution. This can prevent impurities from moving upward and contaminating the electroplating solution, ensuring the stability of the electroplating solution composition. At the same time, the cleaning component 700 uses a suction cleaning method, which can also selectively suction impurities in the closed cleaning chamber, reducing the suction volume.

[0030] To form a barrier surface, the following solution is provided: In this embodiment, the first sealing component 620 includes a first moving block 621, which is slidably installed inside one end of the longitudinal opening and closing guide rail 610. A third driving rod 622 is vertically arranged on the bottom surface of the first moving block 621. A first vertical plate 623 is vertically arranged at the bottom end of the third driving rod 622. A first longitudinal strip 624 is vertically arranged at the bottom end of the first vertical plate 623. Multiple sets of spaced-apart and laterally extending first barrier plates 625 are vertically arranged on the inner wall of the first longitudinal strip 624. The second sealing component 630 includes a second moving block 631, the second... The movable block 631 is slidably installed inside the other end of the longitudinal opening and closing guide rail 610. The bottom surface of the second movable block 631 is vertically provided with a fourth drive rod 632. The bottom end of the fourth drive rod 632 is vertically provided with a second vertical plate 633. The bottom end of the second vertical plate 633 is vertically provided with a second longitudinal strip 634. The inner wall of the second longitudinal strip 634 is vertically provided with multiple sets of spaced and laterally extended second barrier plates 635. The first barrier plate 625 and the second barrier plate 635 are staggered. The first barrier plate 625 and the second barrier plate 635 alternately descend and dock to form a complete barrier surface to form a closed cleaning cavity below.

[0031] In the above scheme: 1. The first barrier plate 625 and the second barrier plate 635 are designed to be staggered, so that the first barrier plate 625 and the second barrier plate 635 can be joined together to form a complete barrier surface. 2. The first barrier plate 625 and the second barrier plate 635 descend alternately. When the first barrier plate 625 descends, the electroplating solution can pass between the first barrier plates 625. When the first barrier plate 625 descends to the designated position, the second barrier plate 635 descends again until the second barrier plate 635 is in contact with the first barrier plate 625, thus reducing the impact on the upper electroplating solution.

[0032] Since the contact plate 220 is wavy, the following solution is provided in order to achieve targeted and thorough cleaning: In this embodiment, the cleaning component 700 includes a longitudinal travel guide rail 710 and a suction box 720. The bottom surfaces of the first longitudinal strip 624 and the second longitudinal strip 634 are provided with longitudinal travel guide rails 710. The suction box 720 is arranged vertically, and the top surface of the suction box 720 is provided with a travel block 721. The travel block 721 is slidably embedded in the interior of the longitudinal travel guide rail 710. The bottom surface of the suction box 720 has perforations 722 at both ends, and multiple suction holes 723 are provided in the middle of the bottom surface of the suction box 720. The suction holes 723 are connected to the suction box 720. The top surface of the suction box 720 is connected to the suction pump box 730 through a hose 731. The suction pump box 730 has elastic scraping components 740 installed inside the two sets of perforations 722. The elastic scraping components 740 are in elastic contact with the contact plate 220.

[0033] In the above scheme: the elastic scraping component 740 on the bottom surface of the suction box 720 elastically contacts the contact plate 220. The elastic scraping component 740 can move up and down to adapt to the surface shape of the contact plate 220 and scrape off the residue on the contact plate 220. At the same time, the suction pump continuously draws air through the hose 731 to extract the scraped residue in the closed area. The residue can be blocked by the first barrier plate 625 and the second barrier plate 635.

[0034] In this embodiment, the elastic scraping component 740 includes a movable column 741, a lower scraper 742, an upper floating plate 743, and a scissor frame 744. A set of movable columns 741 slides vertically through each set of through holes 722. The bottom ends of the two sets of movable columns 741 are provided with lower scrapers 742. The lower scrapers 742 are spaced apart below multiple sets of suction holes 723. The upper floating plate 743 slides vertically inside the suction box 720. The top ends of the two sets of movable columns 741 are connected to the upper floating plate 743. The bottom of the scissor frame 744 slides inside the upper floating plate 743, and the top end slides inside the top surface of the suction box 720. The bottom end of the lower scraper 742 is conical. The lower scraper 742 is used to longitudinally move and clean the wavy contact plate 220. The scissor frame 744 is used to elastically open and close to support the lower scraper 742 and agitate the slurry in the suction box 720. In the above scheme: when the lower scraper 742 moves, the contact plate 220 abuts against the lower scraper 742, the lower scraper 742 is lifted and drives the upper floating plate 743 to be lifted through the movable column 741, and the upper floating plate 743 pushes the scissor frame 744 to retract; when the lower scraper 742 is no longer under force, the scissor frame 744 resets and pushes the floating plate and the lower scraper 742 to descend; The tapered lower scraper 742 can fully fit the contact plate 220. The lower scraper 742 has a thin plate structure, and its thickness is less than that of the suction box 720. The material can enter the suction hole 723 through the area between the lower scraper 742 and the suction box 720. The scissor frame 744 can flexibly support the lower scraper 742, allowing the lower scraper 742 to move up and down flexibly. The scissor frame 744 can also agitate the material in the suction box 720 to prevent the material in the suction box 720 from becoming clogged.

[0035] In this embodiment, the scissor frame 744 includes a first rod 745 and a second rod 746. The middle part of the first rod 745 is rotatably connected to the middle part of the second rod 746, and a torsion spring is installed at the rotatable connection. The bottom ends of the first rod 745 and the second rod 746 are symmetrically slidably embedded in the inner ends of the upper floating plate 743, and the top ends of the first rod 745 and the second rod 746 are slidably embedded in the inner top surface of the suction box 720. A stirring rod 747 is vertically provided on the outer wall of both the first rod 745 and the second rod 746. When the scissor frame 744 is opened and closed, the bottom end of the first rod 745 and the top end of the second rod 746 remain in the same position, while the top end of the first rod 745 and the bottom end of the second rod 746 slide. A spring is embedded in the groove, and the stirring rod 747 can agitate the material in the suction box 720 to prevent blockage.

[0036] The working principle of this embodiment: S4. Tank maintenance and copper strip replacement: S4.1 The feeding machine 111 stops after releasing one roll of copper strip; S4.2 The tank maintenance equipment moves along each tank, and the lifting assembly 500 inside the tank maintenance equipment sequentially lifts the cover assembly 400 of each tank. The tank cleaning assembly inside the tank maintenance equipment sequentially cleans the residue inside each tank; specifically: The first traveling trolley 511 travels along the top track 510. When the first hanging plate 530 moves above the electroplating tank to be cleaned, the first drive rod 520 drives the first hanging plate 530 to descend. The transverse opening and closing guide rail 540 drives the two sets of grippers 541 to close. The grippers 541 clamp the handle 411. The first drive rod 520 retracts, thereby driving the transparent cover plate 410, the first pressure roller 430 and the second pressure roller 440 to rise. Subsequently, the first traveling trolley 511 continues to travel along the top track 510, causing the second hanging plate 560 to move above the electroplating tank. The second drive rod 550 drives the second hanging plate 560 to descend, and the longitudinal opening and closing guide rail 610 synchronously drives the first moving block 621 and the second moving block 631 to move closer together, causing the first blocking plate 625 and the second blocking plate 635 to move above the electroplating tank. The third drive rod 622 drives the first vertical plate 623, the first longitudinal strip 624 and the first barrier plate 625 to descend, so that a set of cleaning components 700 comes into contact with the contact plate 220. Subsequently, the fourth drive rod 632 drives the second vertical plate 633, the second longitudinal strip 634, and the second barrier plate 635 to descend, causing another set of cleaning components to contact the contact plate 220, and the two sets of cleaning components 700 to fit together; the first barrier plate 625 and the second barrier plate 635 descend alternately, allowing the electrolyte to flow normally between the first barrier plate 625 and the second barrier plate 635. The first barrier plate 625 and the second barrier plate 635 are vertically fitted together to form a complete barrier surface, and a closed cleaning cavity for the cleaning component 700 to move between the bottom of the barrier surface and the contact surface can be formed. The traveling block 721 of the suction box 720 moves along the longitudinal traveling guide rail 710, and the lower scraper 742 moves along the surface of the contact plate 220. When the lower scraper 742 moves to the crest of the contact plate 220, the lower scraper 742 is forced to move upward. The lower scraper 742 drives the upper floating plate 743 to move upward along the suction box 720 through two sets of movable columns 741. When the upper floating plate 743 is lifted, it drives the two sets of scissor frames 744 to retract and compress the torsion spring. Subsequently, the torsion spring drives the scissor frames 744 to extend, thereby driving the lower scraper 742 to always be in contact with the contact plate 220, so as to remove the residue on the contact plate 220. The suction pump box 730 absorbs the liquid and scraped residue in the closed cleaning chamber through the hose 731. The mixed material enters the suction box 720 through the suction hole 723 and is then discharged through the hose 731. When the scissor frame 744 moves in the retraction motion, the stirring rod, the first rod 745, and the second rod 746 can agitate the mixed material to avoid blockage. After the material is sucked up, the first sealing component 620 and the second sealing component 630 are raised alternately. S4.3 After cleaning, thread the new copper strip through each tank. Once threaded, replace the cover assembly 400. Specifically: Since the cover assembly 400 is kept in the raised state, there is space for the strip to be threaded at the top of the tank. The worker passes the copper strip through the two sets of guide rollers 310. Then, the second drive rod 550 drives the second hanging plate 560 to descend, so that the transparent cover 410 covers the tank. The first pressure roller 430 and the second pressure roller 440 press the copper strip into the electrolyte.

[0037] Example 3 A copper-plated nickel electrode sheet for a new energy vehicle battery is manufactured according to the processing method described in Example 1 and the processing equipment described in Example 2.

[0038] The copper-plated nickel electrode sheets manufactured for new energy vehicle batteries have the following technical advantages compared to traditional electrode sheets: 1. Superior coating quality and significantly reduced defect rate. Traditional nickel-plated electrodes are prone to defects such as pinholes and pitting due to hydrogen gas evolution on the cathode surface during electroplating and the adhesion of bubbles. Furthermore, uneven ion diffusion can cause coating thickness deviations. This method utilizes a corrugated exhaust plate to expel inert gas, creating turbulence. This accelerates uniform ion diffusion and efficiently carries away hydrogen gas, thus controlling coating thickness deviations, reducing the rate of pinholes and pitting defects, and resulting in a denser, more crystalline coating.

[0039] 2. The coating has stronger adhesion to the copper strip, improving oxidation resistance. Traditional electrode pretreatment relies solely on a single degreasing method. Residual oil or oxide layers on the copper strip surface can easily lead to insufficient adhesion of the plating layer, and the nickel plating layer is prone to oxidation and discoloration due to insufficient passivation. This method combines ultrasonic and electrolytic degreasing with immediate water washing to thoroughly remove impurities from the copper strip surface, thereby improving the peel strength between the plating layer and the copper strip.

[0040] 3. The electrode coating exhibits high adhesion and superior structural stability. This method improves the surface roughness and surface energy of the nickel plating layer through corona treatment, thereby enhancing the adhesion between the electrode slurry and the plating layer and reducing the coating peeling rate during battery cycling.

[0041] 4. Improved electrode performance consistency and enhanced battery safety. Traditional electrode production suffers from significant performance fluctuations due to contamination from residual impurities in the processing tank. This method addresses this by using tank maintenance equipment to regularly clean the tank, reducing contamination and ensuring electrode quality.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A processing equipment for copper-nickel plated electrode sheets for new energy vehicle batteries, characterized in that, Including the tank and maintenance equipment; The tank maintenance equipment includes a tank cleaning component and a hoisting component; the hoisting component is used to lift the corresponding cover component of the tank, and the tank cleaning component is used to enter the tank to clean the residue after the cover component is lifted. The tank cleaning assembly includes a longitudinal opening and closing guide rail connected to the hoisting assembly; two symmetrically arranged first and second closing components are slidably installed on the bottom surface of the longitudinal opening and closing guide rail, and a cleaning component is installed at the bottom end of both the first and second closing components; after the first and second closing components cooperate, a closed cleaning cavity is formed at the bottom of the tank, which is used to avoid interference between the cleaning component and the upper layer of electroplating solution inside the tank when cleaning the contact plate inside the tank.

2. The processing equipment for copper-nickel plated electrode sheets of new energy vehicle batteries according to claim 1, characterized in that, The tank includes an oil removal tank, a water washing tank, a first electroplating tank, a second electroplating tank, and a passivation tank arranged in sequence. The passivation tank is provided with a first drying oven, a corona machine, a coating machine, a second drying oven, and a slitting machine arranged sequentially on the side opposite to the second electroplating tank.

3. The processing equipment for copper-nickel plated electrode sheets of new energy vehicle batteries according to claim 2, characterized in that: Both the first and second electroplating tanks are equipped with exhaust plates. Each exhaust plate includes a base, and the surface of the base is provided with a wave-shaped contact plate. A jet nozzle is embedded at the crest of the contact plate. An air guide cavity is opened inside the base and is connected to each jet nozzle. The outside of the air guide cavity is connected to an air source through a connector.

4. The processing equipment for copper-nickel plated electrode sheets of new energy vehicle batteries according to claim 3, characterized in that: A guide gap is provided between two adjacent tanks, and a guide roller assembly is installed in the guide gap. The cover assembly includes a transparent cover plate, a first pressure roller, a second pressure roller, and a positioning frame. The transparent cover plate fits onto the top of the tank. A handle is provided in the middle of the surface of the transparent cover plate. A positioning frame is provided in the middle of the bottom surface of the transparent cover plate. The bottom of the positioning frame is symmetrically provided with a first pressure roller and a second pressure roller along the copper strip conveying direction. The first pressure roller and the second pressure roller are immersed in the tank by pressing the copper strip. The copper strip passes through a set of guide rollers, the bottom surface of the first pressure roller, the bottom surface of the second pressure roller, and another set of guide rollers in sequence. The hoisting assembly includes a top rail, which is located above the first electroplating tank and the second electroplating tank. A first traveling trolley and a second traveling trolley are slidably mounted on the bottom of the top rail. A first drive rod is vertically mounted on the bottom surface of the first traveling trolley. A first hanging plate is mounted at the bottom end of the first drive rod. A transverse opening and closing guide rail is mounted on the bottom surface of the first hanging plate. Claws are symmetrically slidably mounted inside the transverse opening and closing guide rail. Two sets of claws are used to hold the handle. The bottom of the second traveling trolley is vertically equipped with a second drive rod, and the bottom end of the second drive rod is equipped with a second hanging plate. The tank cleaning component is symmetrically arranged on the bottom surface of the second hanging plate and is slidably connected to the second hanging plate. After the gripper lifts the cover assembly, the tank cleaning component enters the tank to perform cleaning operations.

5. The processing equipment for copper-nickel plated electrode sheets of new energy vehicle batteries according to claim 4, characterized in that: The first enclosure component includes a first movable block, which is slidably installed inside one end of the longitudinal opening and closing guide rail. A third driving rod is vertically provided on the bottom surface of the first movable block. A first vertical plate is vertically provided at the bottom end of the third driving rod. A first longitudinal strip is vertically provided at the bottom end of the first vertical plate. Multiple sets of first barrier plates that are spaced apart and extend laterally are vertically provided on the inner wall of the first longitudinal strip. The second enclosure component includes a second movable block, which is slidably installed inside the other end of the longitudinal opening and closing guide rail. A fourth drive rod is vertically provided on the bottom surface of the second movable block. A second vertical plate is vertically provided at the bottom end of the fourth drive rod. A second longitudinal strip is vertically provided at the bottom end of the second vertical plate. Multiple sets of second barrier plates that are spaced apart and extend laterally are vertically provided on the inner wall of the second longitudinal strip. The first and second barrier plates are staggered and alternately descend to connect as a complete barrier surface, forming a closed cleaning cavity below.

6. The processing equipment for copper-nickel plated electrode sheets of new energy vehicle batteries according to claim 1, characterized in that: The cleaning component includes a longitudinal travel guide rail and a suction box. The bottom surfaces of the first and second longitudinal blocks are provided with longitudinal travel guide rails. The suction box is arranged vertically, and the top surface of the suction box is provided with a travel block. The travel block is slidably embedded in the interior of the longitudinal travel guide rail. The bottom surface of the suction box has perforations at both ends, and multiple suction holes are opened in the middle of the bottom surface of the suction box. The suction holes are connected to the suction box. The top surface of the suction box is connected to the suction pump box through a hose. The suction pump box has elastic scraping components installed inside the two sets of perforations. The elastic scraping components are in elastic contact with the contact plate.

7. The processing equipment for copper-nickel plated electrode sheets of new energy vehicle batteries according to claim 6, characterized in that: The elastic scraping component includes movable columns, a lower scraper, an upper floating plate, and a scissor frame. Each set of movable columns slides vertically through each set of holes. The bottom of the two sets of movable columns is equipped with a lower scraper, which is positioned below multiple sets of suction holes at intervals. The upper floating plate slides vertically inside the suction box. The top of the two sets of movable columns is connected to the upper floating plate. The bottom of the scissor frame slides inside the upper floating plate, and the top slides inside the top surface of the suction box. The bottom of the lower scraper is conical. The lower scraper is used to longitudinally move and clean the wavy contact plate. The scissor frame is used to elastically open and close to support the lower scraper and agitate the slurry in the suction box. The scissor frame includes a first rod and a second rod. The middle part of the first rod is rotatably connected to the middle part of the second rod, and a torsion spring is installed at the rotatable connection. The bottom ends of the first rod and the second rod are slidably connected to floating plates. The top ends of the first rod and the second rod are slidably connected to the inner top surface of the suction box. The outer walls of the first rod and the second rod are both vertically provided with stirring rods.

8. A method for processing copper-plated nickel electrode sheets for new energy vehicle batteries, characterized in that, Processing using the processing equipment according to any one of claims 1-7 includes the following steps: The copper strip is released by the feeding machine and fed into the degreasing tank at a uniform speed for ultrasonic and electrostatic degreasing. Then it is fed into the water washing tank for water washing. After degreasing and water washing pretreatment, the copper strip passes through multiple electroplating tanks for nickel plating and then enters the passivation tank. After nickel plating, a dense passivation film is formed on the surface of the copper strip, and then it is put into the first drying oven for drying. After drying, the nickel-plated copper strip is subjected to corona treatment, coating treatment, drying treatment and slitting treatment in sequence to obtain copper-plated nickel battery electrode sheets.

9. A method for processing copper-plated nickel electrode sheets for new energy vehicle batteries according to claim 8, characterized in that, Specifically, the steps include the following: S1. Copper strip pretreatment: The copper strip passes through various pretreatment tanks. S1.1 The feeder releases the copper strip at a uniform speed into the degreasing tank for ultrasonic and electrolytic degreasing. S1.2 Water washing treatment: After degreasing, the copper strip is quickly fed into the water washing tank to remove the residual electrolyte and degreasing agent on the surface of the copper strip. S2, Copper strip is nickel plated, and the copper strip passes through each nickel plating tank: S2.1 Electroplating treatment: The washed copper strip is fed into a multi-stage electroplating tank. A corrugated exhaust plate is added to the electroplating tank. The exhaust plate can discharge inert gas to form turbulence, which accelerates ion diffusion and carries away the hydrogen gas generated on the cathode surface. The temperature of the electroplating solution is maintained at 55-65℃, the pH value is controlled at 4.0-5.0, and the current density is 3-5A / dm². S2.2 Passivation treatment: The nickel-plated copper strip is fed into the passivation tank to form a dense passivation film on the surface of the nickel-plated copper strip to prevent oxidation of the nickel plating layer; S2.3 Drying treatment: The nickel-plated copper strip is transferred from the passivation tank to the first drying box; S3, Electrode Processing: S3.1 Corona Treatment: The nickel-plated copper strip is subjected to corona treatment in a corona machine to improve the surface roughness and surface energy of the nickel-plated copper strip. S3.2 Coating treatment: The coating machine evenly coats the electrode paste onto the surface of the nickel-plated copper strip, and the coating thickness is controlled at 20-50μm; S3.3 Drying treatment: The nickel-plated copper strip coated with electrode paste is passed through a second drying oven to allow the solvent in the electrode paste to fully evaporate and form a firm electrode coating. S3.4 Slitting process: The dried copper-plated nickel battery strip is slitted to obtain copper-plated nickel battery electrode sheets; S4. Tank maintenance and copper strip replacement: S4.1 The feeding machine stops after releasing one roll of copper strip; S4.2 The tank maintenance equipment moves along each tank, and the hoisting components inside the tank maintenance equipment lift the cover components of each tank in sequence. The tank cleaning components inside the tank maintenance equipment clean the residues in each tank in sequence. S4.3 After cleaning, thread the new copper strip through each tank. Once it has passed through, close the cover assembly.

10. A copper-plated nickel electrode sheet for a new energy vehicle battery according to claim 8, characterized in that: The copper-plated nickel electrode sheet is manufactured using the processing method of claim 8.

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