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Electroplating process for preparing high-tensile-strength nickel foam

A technology with high tensile strength and electroplating technology, which is applied in the field of electroplating technology, can solve the problems of positive plate fracture, different sizes, high chemical resistance, etc., and achieve the effect of improving tensile strength, low use cost and simple process

Inactive Publication Date: 2017-05-31
CHANGDE LYRUN MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional nickel foam preparation process adopts the relatively mature Watt nickel system on the market and conventional incineration and reduction heat treatment processes. The prepared material has a rough microscopic crystal structure and different sizes. This material is used in the production of batteries. , high chemical resistance, unable to withstand the impact of large current, especially in the field of pure electric vehicles, it is easy to cause the positive electrode plate made of nickel foam to break during the battery working process, thus affecting the service life of the battery and safe to use

Method used

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  • Electroplating process for preparing high-tensile-strength nickel foam

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Effect test

Embodiment 1

[0014] An electroplating process for preparing foamed nickel with high tensile strength, comprising the following process methods:

[0015] Conduct conductive treatment of polyurethane porous sponge by physical vapor deposition method, and then conduct crystal refinement pre-plating by electrodeposition method. The pre-plating process is nickel sulfate 150g / L, nickel chloride 20g / L, boric acid 20g / L, sodium saccharin 0.02g / L, pH4.0, temperature 30°C, current density 1.5A / dm2, metal deposition 5g / m2; then place the pre-plated conductive substrate on nickel sulfate 150g / L, nickel chloride 80g / L, boric acid 20g / L, sodium saccharin 0.02g / L, pH 4.0, temperature 30°C, current density 2.5A / dm2 for electroplating in the electroplating solution, the electroplating metal deposition amount is 100g / m2, and finally the electroplated The porous material is subjected to incineration and reduction heat treatment to obtain the nickel foam material with high tensile strength described in the p...

Embodiment 2

[0018] An electroplating process for preparing foamed nickel with high tensile strength, comprising the following process methods:

[0019] Polyurethane porous sponge is conductively treated by physical vapor deposition method, and then crystal refined pre-plating is carried out by electrodeposition method. The pre-plating process is nickel sulfate 160g / L, nickel chloride 25g / L, boric acid 30g / L, sodium saccharin 0.04g / L, pH4.3, temperature 40°C, current density 2.0A / dm2, metal deposition 8g / m2; then place the pre-plating conductive substrate on nickel sulfate 160g / L, nickel chloride 90g / L, boric acid 30g / L, sodium saccharin 0.04g / L, pH 4.2, temperature 40°C, current density 3.5A / dm2 electroplating solution, electroplating metal deposition amount is 300g / m2, and finally electroplated The porous material is subjected to incineration and reduction heat treatment to obtain the nickel foam material with high tensile strength described in the present invention.

Embodiment 3

[0021] An electroplating process for preparing foamed nickel with high tensile strength, comprising the following process methods:

[0022] Polyurethane porous sponge is conductively treated by physical vapor deposition, and then pre-plated with crystal refinement by electrodeposition. The pre-plating process is nickel sulfate 180g / L, nickel chloride 30g / L, boric acid 35g / L, sodium saccharin 0.05g / L, pH4.5, temperature 45℃, current density 3.0A / dm2, metal deposition amount 10g / m2; then place the pre-plated conductive substrate on nickel sulfate 180g / L, nickel chloride 100g / L, boric acid 35g / L, sodium saccharin 0.05g / L, pH 4.5, temperature 45°C, current density 4.5A / dm2 electroplating solution, electroplating metal deposition amount is 500g / m2, and finally electroplated The porous material is subjected to incineration and reduction heat treatment to obtain the nickel foam material with high tensile strength described in the present invention.

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Abstract

The invention provides an electroplating process for preparing high-tensile-strength nickel foam. The electroplating process comprises the steps of electric conductivity of a sponge base body, refining and pre-electroplating of crystals, electroplating and thermal treatment. The preparation method is simple in process. The nickel foam obtained through the electroplating process has high tensile strength. Process maintenance of an electroplating solution is simple. The electroplating cost is low. Meanwhile, metallic crystallized layers of products prepared through the electroplating process are finer.

Description

technical field [0001] The invention relates to an electroplating process for preparing foamed nickel with high tensile strength. Background technique [0002] Nickel foam is widely used as a battery positive plate material due to its three-dimensional network structure and large specific surface area. The conventional nickel foam preparation process adopts the relatively mature Watt nickel system on the market and conventional incineration and reduction heat treatment processes. The prepared material has a rough microscopic crystal structure and different sizes. This material is used in the production of batteries. , high chemical resistance, unable to withstand the impact of large current, especially in the field of pure electric vehicles, it is easy to cause the positive electrode plate made of nickel foam to break during the battery working process, thus affecting the service life of the battery and Safe to use. Contents of the invention [0003] The invention aims t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12C25C5/00
Inventor 余兴华易秋珍钟建夫朱济群
Owner CHANGDE LYRUN MATERIAL