Punched nickel-plated steel strip and its manufacturing method

Abstract

This invention relates to a high-performance punching nickel-plated steel with pseudo three-dimensional structure and its preparing method, the steel belt has nickel-plated layer on its basal body, on the nickel-plated layer is composite nickel-plated layer, being one or two among metallic nickel, nickel carbonoxide, metallic cobalt and cobalt trioxide. The preparing method comprises the following steps: punching the steel belt with special mold, electroplating 0.5-10 mu m nickel-plated layer as buffer layer, then, compositely electroplating 0.5-10 mu m nickel layer in the solution with solid particle with its diameter being 0.5-5 mu m and including transient metal or its compound, processing annealing treatment to get pseudo three-dimensional structure nickel-plated layer with good bonding force, not only suitable for mini twice utility, also for electrokinetic cell.

Description

technical field

[0001] The invention relates to an electrode base material and a manufacturing method thereof, in particular to a perforated nickel-plated steel strip and a manufacturing method thereof. Background technique

[0002] Ni-MH battery has the characteristics of high energy density, high power density, fast charging and discharging, long cycle life, no pollution, maintenance-free, and complete use. It is called "green battery". In the late 1980s, Ni- MH batteries were first commercialized in Japan, and the industrial specifications developed rapidly in the 1990s. Ni-MH batteries are currently mainly used in small mobile communication equipment, notebook computers, camcorders, pocket recorders, digital cameras and electric mopeds. With its application in power batteries, its application fields will continue to expand. In the production process of the battery, the performance of the electrode base material will directly affect the performance of the battery and th...

Examples

Embodiment 1

[0022] Embodiment 1: Common perforated steel strip is electroplated in the mixed solution containing nickel sulfate 1.5mol / l, nickel chloride 0.1mol / l, 0.65mol / l boric acid for 1.5min, the pH value of the plating solution is 4.5, and the temperature is 50°C , the cathodic plating density is 3A / dm 2 , to obtain a pre-nickel-plated steel strip, the deposition thickness of the pre-nickel layer is 0.5-1 micron. Put this nickel-plated steel strip into the second nickel plating tank for electroplating, the composition and process conditions of the plating solution are: nickel sulfate 1mol / l, nickel chloride 0.15mol / l, boric acid 0.65mol / l, additive 20ml / l, nickel powder with a diameter of 1 micron floats in the solution evenly under stirring and the addition amount is 5g / L, electroplating for 1min, the pH value of the plating solution is 4.5, the temperature is 50°C, and the cathode current density is 3A / dm 2 , the resulting coating is a matte composite coating, from the scanning ...

Embodiment 2

[0023] Embodiment 2: the electroplating nickel solution composition of common perforated steel strip pre-nickeling is the mixed solution of nickel sulfate 1.5mol / l, nickel chloride 0.1mol / l, 0.65mol / l boric acid, additive 20ml / l, electroplating time 2.5min , the pH value of the plating solution is 4.8, the temperature is 52°C, and the cathode plating density is 3A / dm 2 , The deposition thickness of the pre-plating nickel layer is 2~3 microns. The composition and process conditions of the composite nickel plating solution are: nickel sulfate 1.5mol / l, nickel chloride 0.12mol / l, boric acid 0.65mol / l, additive 4ml / l, carbonyl nickel powder with a diameter of 3 microns floats evenly under stirring In the solution and the addition amount is 100g / L, electroplating for 4min, the pH value of the plating solution is 4.8, the temperature is 50°C, and the cathode plating density is 3A / dm 2 , the deposition thickness of the composite electroplating nickel layer is 4.5~5 microns, and the ...

Embodiment 3

[0024] Embodiment 3: the electroplating nickel solution composition of common perforated steel strip pre-nickeling is nickel sulfate 1.5mol / l, nickel chloride 0.1mol / l, 0.65mol / l boric acid, electroplating time 1min, plating solution pH value is 4.8, temperature 52℃, cathodic plating density is 3A / dm 2, the deposition thickness of the pre-plating nickel layer is 0.5-0.9 microns. The composition and process conditions of the composite electroplating nickel solution are: nickel sulfate 1.5mol / l, nickel chloride 0.12mol / l, boric acid 0.65mol / l, additive 4ml / l, cobalt trioxide powder with a diameter of 5 microns is uniformly stirred The ground floats in the solution and the addition amount is 150g / L, electroplating for 8 minutes, the pH value of the plating solution is 4.8, the temperature is 50°C, and the cathode plating density is 3A / dm 2 , the deposition thickness of the composite electroplating nickel layer is 7-8 microns, and the resulting coating is a matte nickel coating. ...

technical field

[0001] The invention relates to an electrode base material and a manufacturing method thereof, in particular to a perforated nickel-plated steel strip and a manufacturing method thereof. Background technique

[0002] Ni-MH battery has the characteristics of high energy density, high power density, fast charging and discharging, long cycle life, no pollution, maintenance-free, and complete use. It is called "green battery". In the late 1980s, Ni- MH batteries were first commercialized in Japan, and the industrial specifications developed rapidly in the 1990s. Ni-MH batteries are currently mainly used in small mobile communication equipment, notebook computers, camcorders, pocket recorders, digital cameras and electric mopeds. With its application in power batteries, its application fields will continue to expand. In the production process of the battery, the performance of the electrode base material will directly affect the performance of the battery and th...

Examples

Embodiment 1

[0022] Embodiment 1: Common perforated steel strip is electroplated in the mixed solution containing nickel sulfate 1.5mol / l, nickel chloride 0.1mol / l, 0.65mol / l boric acid for 1.5min, the pH value of the plating solution is 4.5, and the temperature is 50°C , the cathodic plating density is 3A / dm 2 , to obtain a pre-nickel-plated steel strip, the deposition thickness of the pre-nickel layer is 0.5-1 micron. Put this nickel-plated steel strip into the second nickel plating tank for electroplating, the composition and process conditions of the plating solution are: nickel sulfate 1mol / l, nickel chloride 0.15mol / l, boric acid 0.65mol / l, additive 20ml / l, nickel powder with a diameter of 1 micron floats in the solution evenly under stirring and the addition amount is 5g / L, electroplating for 1min, the pH value of the plating solution is 4.5, the temperature is 50°C, and the cathode current density is 3A / dm 2 , the resulting coating is a matte composite coating, from the scanning ...

Embodiment 2

[0023] Embodiment 2: the electroplating nickel solution composition of common perforated steel strip pre-nickeling is the mixed solution of nickel sulfate 1.5mol / l, nickel chloride 0.1mol / l, 0.65mol / l boric acid, additive 20ml / l, electroplating time 2.5min , the pH value of the plating solution is 4.8, the temperature is 52°C, and the cathode plating density is 3A / dm 2 , The deposition thickness of the pre-plating nickel layer is 2~3 microns. The composition and process conditions of the composite nickel plating solution are: nickel sulfate 1.5mol / l, nickel chloride 0.12mol / l, boric acid 0.65mol / l, additive 4ml / l, carbonyl nickel powder with a diameter of 3 microns floats evenly under stirring In the solution and the addition amount is 100g / L, electroplating for 4min, the pH value of the plating solution is 4.8, the temperature is 50°C, and the cathode plating density is 3A / dm 2 , the deposition thickness of the composite electroplating nickel layer is 4.5~5 microns, and the ...

Embodiment 3

[0024] Embodiment 3: the electroplating nickel solution composition of common perforated steel strip pre-nickeling is nickel sulfate 1.5mol / l, nickel chloride 0.1mol / l, 0.65mol / l boric acid, electroplating time 1min, plating solution pH value is 4.8, temperature 52℃, cathodic plating density is 3A / dm 2, the deposition thickness of the pre-plating nickel layer is 0.5-0.9 microns. The composition and process conditions of the composite electroplating nickel solution are: nickel sulfate 1.5mol / l, nickel chloride 0.12mol / l, boric acid 0.65mol / l, additive 4ml / l, cobalt trioxide powder with a diameter of 5 microns is uniformly stirred The ground floats in the solution and the addition amount is 150g / L, electroplating for 8 minutes, the pH value of the plating solution is 4.8, the temperature is 50°C, and the cathode plating density is 3A / dm 2 , the deposition thickness of the composite electroplating nickel layer is 7-8 microns, and the resulting coating is a matte nickel coating. ...