Steel battery shell electroplating device
By designing an electroplating device with multiple protruding anode plates, a rotatable cathode base, and a dual anode structure, the problems of uneven nickel plating and high cost on the inner wall of cylindrical steel battery casings were solved, achieving uniform nickel plating and cost reduction.
Patent Information
- Application Number
- CN202422400943.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In existing technologies, uneven nickel plating on the inner wall of cylindrical steel battery casings leads to the precipitation of iron ions on the inner wall, affecting the battery's chemical reaction. Furthermore, nickel plating is costly and results in significant material waste.
Three electroplating apparatuses for steel battery casings were designed, including multiple spaced-apart raised anode plates, a rotatable cathode base, and a dual-anode structure, to ensure uniformity and efficiency of nickel plating and reduce costs through different methods.
This technology enables uniform nickel plating on the inner wall of steel battery casings, reducing material waste, lowering nickel plating costs, and improving nickel plating efficiency and adaptability.
Smart Images
Figure CN223458425U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of steel battery shell processing, in particular to a steel battery shell electroplating device. Background Art
[0002] In the battery field, battery cases are often made of steel. Industrially, the steel battery cases are first stamped out of iron and then nickel-plated. Existing nickel plating often involves placing the cylindrical steel battery case in a polygonal container for barrel plating. This often results in the electroplating not reaching the deeper inner walls of the cylindrical steel battery case during barrel plating. Consequently, when the manufactured steel battery case is used in a battery, the inner wall of the steel battery case, partially uncoated by the nickel layer, is affected by the electrolyte, causing iron ions to precipitate from the inner wall of the steel battery case, affecting the chemical reactions within the battery.
[0003] To avoid the drawbacks of barrel plating, the industry typically nickel-plates the steel layers used to make steel battery casings. After the nickel plating, the steel layers are heat-treated before being stamped into the casing. While this method achieves uniform nickel plating, it is expensive. Furthermore, if the stamping fails, the steel cannot be recycled (because it has already been nickel-plated), resulting in significant scrap and further increasing costs.
[0004] In order to uniformly plate nickel and reduce the cost of nickel plating, it is particularly important to design a steel battery casing electroplating device. Summary of the Invention
[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a steel battery shell electroplating device.
[0006] A steel battery casing electroplating device, suitable for hollow cylindrical steel battery casings, includes an electrolyte, wherein the electrolyte is a solution containing nickel ions, and further includes: a cathode, an anode, and a power supply; the power supply is located outside the electroplating device, the cathode, the anode, and the steel battery casing are all immersed in the electrolyte, and the cathode and the anode are electrically connected to the external power supply;
[0007] The anode is inserted into the steel cylinder battery housing without contacting the steel cylinder battery housing;
[0008] The cathode and the outer wall of the steel tube battery shell are provided with a contact point or a contact surface, and the contact point or the contact surface is movable on the steel tube battery shell.
[0009] As a preference:
[0010] The anode is an anode plate with a plurality of spaced protrusions, the size of the protrusions being smaller than the size of the steel tube battery shell, the outer surfaces of the plurality of protrusions are each sleeved with a plurality of steel tube battery shells, and each of the protrusions does not contact the steel tube battery shell;
[0011] The cathodes are multiple clamp-shaped cathodes correspondingly arranged on the outside of the steel cylinder battery shell. Each clamp-shaped cathode clamps the two sides of the outer wall of a steel cylinder battery shell. The clamp-shaped cathodes can move up and down or rotate when clamping the outer wall of the steel cylinder battery shell.
[0012] The second type of steel battery shell electroplating device is suitable for hollow cylindrical steel cylinder battery shells. The electroplating device includes an electrolyte: the steel cylinder serves as the cathode, and the electroplating device also includes an anode nickel rod and a placement base located inside the cathode steel cylinder. The anode nickel rod is inserted into the cathode steel cylinder without contacting the cathode steel cylinder; the bottom of the cathode steel cylinder is fixed on the placement base, and the anode nickel rod and the cathode steel cylinder are both immersed in the electrolyte; the placement base is a rotatable device, and the placement base is used to drive the cathode steel cylinder to rotate during nickel plating; a sealing isolation device is provided in the electroplating device, and the sealing isolation device is used to isolate the placement base from the electrolyte.
[0013] The third type of steel battery shell electroplating device is suitable for hollow cylindrical steel cylinder battery shells, and the electroplating device includes an electrolyte; a steel cylinder serves as a cathode; the electroplating device also includes an anode nickel rod located inside the cathode steel cylinder, a hollow cylindrical anode nickel shell nested outside the cathode steel cylinder shell, and a pump; the anode nickel rod placed inside the cathode steel cylinder and the hollow cylindrical anode nickel shell nested outside the cathode steel cylinder shell both serve as anodes of the electroplating device; a plurality of through holes are evenly distributed on the surface of the hollow cylindrical anode nickel shell, The anode nickel rod, the hollow cylindrical anode nickel shell and the cathode steel cylinder are all immersed in the electrolyte; one end of the anode nickel rod is long enough to partially extend above the liquid surface of the electrolyte; the pump is placed outside the electroplating device, the liquid inlet of the pump is connected to the electrolyte, and the liquid outlet of the pump is a jet nozzle evenly distributed around the hollow cylindrical anode nickel shell. The pump is used to suck the electrolyte and evenly inject the electrolyte into the interior of the hollow cylindrical anode nickel shell from the through holes on the periphery of the hollow cylindrical anode nickel shell.
[0014] The utility model discloses beneficial effect is: the utility model discloses three kinds of electroplating devices for hollow cylindrical steel cylinder battery shell, from different angles and direction avoid the non -uniformity of nickel plating, nickel plating cost is high, steel cylinder battery shell raw material waste situation, and one of steel body battery shell electroplating device's anode is a piece of anode plate with many interval setting's convex, realizes the nickel plating of multiple steel body battery shell simultaneously, improves the efficiency of industrial nickel plating, another steel body battery shell electroplating device is equipped with the placement pedestal of fixed connection with its bottom in cathode steel cylinder, and the placement pedestal is used in the scene of requiring hollow cylindrical steel cylinder battery shell no nickel plating dead angle, still designs a kind of double anode's steel body battery shell electroplating device, nickel bar in hollow cylindrical steel cylinder battery shell and the hollow cylindrical nickel shell of sleeve setting in hollow cylindrical steel cylinder battery shell are all as anode, the through -hole is evenly arranged on the hollow cylindrical nickel shell, and pump is equipped to accelerate the circulation of electrolyte, this electroplating device is applicable to the application of needing to complete steel body battery shell nickel plating in short time or needing to have relatively thick nickel layer on steel body battery shell. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is steel body battery shell electroplating device drawing of the utility model embodiment 1;
[0016] Figure 2 It is steel body battery shell electroplating device drawing of the utility model embodiment 1;
[0017] Figure 3 It is steel body battery shell electroplating device drawing of the utility model embodiment 2;
[0018] Figure 4 It is steel body battery shell electroplating device drawing of the utility model embodiment 3.
[0019] Mark explanation: steel cylinder battery shell 1, electrolyte 2, cathode 3, anode 4, power supply 5, anode plate 6, grab clamping cathode 7, cathode steel cylinder 8, anode nickel bar 9, placement pedestal 10, sealing isolation device 11, anode nickel shell 12, pump 13, through -hole 14, injection port 15. DETAILED DESCRIPTION
[0020] The utility model will be further described in connection with the embodiment. The following embodiment is only used to help understanding the utility model. It should be pointed out that, for ordinary person in this field, on the premise of not departing from the principle of the utility model, the utility model can be modified, and these improvements and modifications also fall within the scope of protection of the utility model claims. Embodiment 1
[0021] As Figure 1 And Figure 2As shown, a steel battery casing electroplating device is suitable for a hollow cylindrical steel tube battery casing 1. The electroplating device includes an electrolyte 2, which is a solution containing nickel ions. The electroplating device also includes: a cathode 3, an anode 4, and a power supply 5; the power supply 5 is placed outside the electroplating device, and the cathode 3, the anode 4, and the steel tube battery casing 1 are all immersed in the electrolyte 2. The cathode 3 and the anode 4 are electrically connected to the external power supply 5;
[0022] The anode 4 is an anode plate 6 with a plurality of spaced protrusions. The size of the protrusions is smaller than the size of the steel tube battery shell 1. The outer surfaces of the plurality of protrusions are each sleeved with a plurality of steel tube battery shells 1, and each of the protrusions does not contact the steel tube battery shell 1.
[0023] The cathode 3 is a plurality of clamp-shaped cathodes 7 correspondingly arranged on the outside of the steel cylinder battery shell 1, and each clamp-shaped cathode 7 clamps the two sides of the outer wall of a steel cylinder battery shell 1. The clamp-shaped cathode 7 can move up and down or rotate when clamping the outer wall of the steel cylinder battery shell 1; the clamp-shaped cathode 7 can move or rotate during the nickel plating process, overcoming the defect that the cathode 3 or 7 is clamped in a fixed position on the outer wall of the steel cylinder battery shell 1 for a long time, resulting in the inability to nickel plate at this location. Example 2
[0024] like Figure 3 As shown, another steel battery shell electroplating device is suitable for hollow cylindrical steel cylinder battery shells, the electroplating device includes an electrolyte 2, a steel cylinder serves as a cathode, and the electroplating device also includes an anode nickel rod 9 and a placement base 10 located inside the cathode steel cylinder 8, the anode nickel rod 9 is inserted into the cathode steel cylinder 8 without contacting the cathode steel cylinder 8; the bottom of the cathode steel cylinder 8 is fixed on the placement base 10, and the anode nickel rod 9 and the cathode steel cylinder 8 are both immersed in the electrolyte 2; the placement base 10 is a rotatable device, and the placement base 10 is used to drive the cathode steel cylinder 8 to rotate during nickel plating; a sealing isolation device 11 is provided in the electroplating device, and the sealing isolation device 11 is used to isolate the placement base 10 from the electrolyte 2. Since the placement base can drive the cathode steel cylinder to rotate during nickel plating, the inner and outer walls of the cathode steel cylinder can be uniformly nickel-plated. Example 3
[0025] like Figure 4As shown, a steel battery shell electroplating device is suitable for hollow cylindrical steel cylinder battery shell, and the electroplating device comprises electrolyte 2 and steel cylinder as cathode; the electroplating device further comprises anode nickel rod 9 located inside the cathode steel cylinder 8, hollow cylindrical anode nickel shell 12 nested outside the cathode steel cylinder 8 shell, and pump 13; the anode nickel rod 9 located inside the cathode steel cylinder 8 and the hollow cylindrical anode nickel shell 12 nested outside the cathode steel cylinder 8 shell both serve as anodes of the electroplating device; the surface of the hollow cylindrical anode nickel shell 12 is uniformly provided with a plurality of through holes 14, the anode nickel rod 9, the hollow cylindrical anode nickel shell 12 and the cathode steel cylinder 8 are all immersed in the electrolyte 2; one end of the anode nickel rod 9 is long enough to partially protrude above the liquid level of the electrolyte 2; the pump 13 is located outside the electroplating device, the liquid inlet of the pump 13 communicates with the electrolyte 2, the liquid outlet of the pump 13 is a spray port 15 uniformly distributed around the hollow cylindrical anode nickel shell 12, and the pump is used to suck the electrolyte 2 and uniformly spray the electrolyte 2 from the through holes 14 on the periphery of the hollow cylindrical anode nickel shell 12 into the inside of the hollow cylindrical anode nickel shell 12, so that the cathode steel cylinder is uniformly plated with nickel.
Claims
1. A galvanic device for steel battery casings, suitable for hollow cylindrical steel cylinder battery casings (1), the galvanic device comprising an electrolyte (2), said electrolyte (2) being a solution with nickel ions, characterized in that, The electroplating device further comprises a cathode (3), an anode (4) and a power supply (5); the power supply (5) is arranged outside the electroplating device, the cathode (3), the anode (4) and the steel cylinder battery shell (1) are all immersed in an electrolyte (2), and the cathode (3) and the anode (4) are both electrically connected to the power supply (5) outside; The anode (4) is inserted into the steel cylinder battery shell (1) without contacting the steel cylinder battery shell (1); The cathode (3) has a contact point or a contact surface with the outer wall of the steel cylinder battery shell (1), and the contact point or the contact surface is movable on the steel cylinder battery shell (1).
2. The electroplating device for the steel cylinder battery shell according to claim 1, characterized in that: The anode (4) is an anode plate (6) provided with a plurality of protrusions arranged at intervals, the size of the protrusions is smaller than the size of the steel cylinder battery shell (1), the plurality of protrusions are all sleeved with a plurality of steel cylinder battery shells (1) outside, and each of the protrusions does not contact the steel cylinder battery shell (1); The cathode (3) is a plurality of grab-shaped cathodes (7) arranged outside the steel cylinder battery shell (1) correspondingly, each of the grab-shaped cathodes (7) corresponds to clamping the outer wall of one steel cylinder battery shell (1) on both sides, and the grab-shaped cathode (7) is movable up and down or rotatable when clamping the outer wall of the steel cylinder battery shell (1).
3. A steel battery case plating apparatus for a hollow cylindrical steel cylinder battery case, the plating apparatus comprising an electrolyte (2), characterized by: The steel cylinder is used as the cathode, and the electroplating device further comprises an anode nickel rod (9) and a placing base (10) arranged inside the cathode steel cylinder (8); the anode nickel rod (9) is inserted into the cathode steel cylinder (8) without contacting the cathode steel cylinder (8); the bottom of the cathode steel cylinder (8) is fixed on the placing base (10), and the anode nickel rod (9) and the cathode steel cylinder (8) are both immersed in the electrolyte (2); the placing base (10) is a rotatable device, and the placing base (10) is used for rotating the cathode steel cylinder (8) when nickel plating; the electroplating device is provided with a sealing isolation device (11) for isolating the placing base (10) from the electrolyte (2).
4. A steel battery case plating apparatus for a hollow cylindrical steel cylinder battery case, the plating apparatus comprising an electrolyte (2), characterized by: Steel cylinder as cathode; electroplating device also includes anode nickel rod (9) located inside the cathode steel cylinder (8), nested in the hollow cylindrical anode nickel shell (12) outside the cathode steel cylinder (8) shell, and pump (13); The anode nickel rod (9) placed inside the cathode steel cylinder (8) and the hollow cylindrical anode nickel shell (12) nested outside the cathode steel cylinder (8) shell are both anodes of the electroplating device; The surface of the hollow cylindrical anode nickel shell (12) is uniformly provided with a plurality of through holes (14), the anode nickel rod (9), the hollow cylindrical anode nickel shell (12) and the cathode steel cylinder (8) are all immersed in the electrolyte (2); One end of the anode nickel rod (9) is long enough to partially protrude above the liquid level of the electrolyte (2); The pump (13) is placed outside the electroplating device, the inlet of the pump (13) is communicated with the electrolyte (2), the outlet of the pump (13) is a spray port (15) uniformly distributed around the hollow cylindrical anode nickel shell (12), and the pump is used for pumping the electrolyte (2) and uniformly punching the electrolyte (2) from the through holes (14) on the periphery of the hollow cylindrical anode nickel shell (12) into the inside of the hollow cylindrical anode nickel shell (12).