Punched nickel-plated steel strip and its manufacturing method

A manufacturing method and technology of nickel-plated steel, applied in the direction of alkaline battery electrodes, etc., can solve the problems of difficult control of burr length, difficult mold design, difficult control of burr, etc., and achieve easy control of process flow and parameters, adhesion and conductivity. The effect of improving the properties and electrochemical performance, and increasing the effective specific surface area

Inactive Publication Date: 2006-01-18
CHANGDE LYRUN MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of burr is extremely difficult to control in production. To form a double-sided burr, it is very difficult to design the production mold, and the length of the burr is difficult to contr

Method used

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Examples

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Example Embodiment

[0022] Example 1: The ordinary perforated steel strip is electroplated in a mixed solution containing 1.5 mol / l nickel sulfate, 0.1 mol / l nickel chloride, and 0.65 mol / l boric acid for 1.5 minutes, the pH value of the plating solution is 4.5, and the temperature is 50°C , The cathode plating density is 3A / dm 2 , The pre-nickel-plated steel strip is obtained, and the deposition thickness of the pre-nickel layer is 0.5-1 micron. Put this pre-plated nickel steel strip into the second nickel plating bath for electroplating. The composition and process conditions of the plating solution are as follows: nickel sulfate 1mol / l, nickel chloride 0.15mol / l, boric acid 0.65mol / l, and additives 20ml / l, the nickel powder with a diameter of 1 micron floats evenly in the solution under stirring and the added amount is 5g / L, electroplating 1min, the pH value of the plating solution is 4.5, the temperature is 50℃, and the cathode current density is 3A / dm 2 The resulting coating is a matt composite...

Example Embodiment

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

Example Embodiment

[0024] Example 3: The composition of the nickel electroplating solution for pre-plating nickel on ordinary perforated steel strip is nickel sulfate 1.5 mol / l, nickel chloride 0.1 mol / l, 0.65 mol / l boric acid, plating time 1 min, plating solution pH value 4.8, temperature It is 52℃, the cathode plating density is 3A / dm 2, The deposition thickness of the pre-plated nickel layer is 0.5-0.9 microns. The composition and process conditions of the composite nickel electroplating solution are: nickel sulfate 1.5mol / l, nickel chloride 0.12mol / l, boric acid 0.65mol / l, additive 4ml / l, 5 micron diameter cobalt trioxide powder uniformly under stirring The ground floats in the solution and the adding amount is 150g / L, the plating is 8min, the pH value of the plating solution is 4.8, the temperature is 50℃, and the cathode plating density is 3A / dm 2 The deposition thickness of the composite electroplating nickel layer is 7~8 microns. The resulting coating is a matt nickel coating. From the scann...

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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...

Claims

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Application Information

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IPC IPC(8): H01M4/24H01M4/26
CPCY02E60/124Y02E60/10
Inventor 汤义武王先友肖腾彬邓红波彭鹏飞陈红辉谢南方钟建夫朱爱平李立林
Owner CHANGDE LYRUN MATERIAL
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