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Method for preparing nickel electrode slurry for electronic component

A technology of electronic components and nickel electrodes, which is applied in the field of preparation of nickel electrode slurry for electronic components, and can solve problems such as affecting the yield of electronic components, incomplete dispersion, and poor dispersion effect

Active Publication Date: 2013-07-31
GUANGDONG FENGHUA ADVANCED TECH HLDG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing slurry dispersion method mainly adds a dispersant to the slurry for stirring and dispersing. For the electronic slurry using micron-sized metal powder, only using the stirring and dispersing method often results in poor dispersion effect, incomplete dispersion, or even The phenomenon of agglomeration directly affects the final yield of electronic components

Method used

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Embodiment

[0010] A preparation method of nickel electrode slurry for electronic components, comprising mixing, dispersing, rolling, and filtering process steps, the dispersion process steps are: A. Weighing the organic solvent and metal powder successively and putting them into the ultrasonic special barrel, and then put the ultrasonic special barrel in the ultrasonic equipment for initial dispersion treatment to obtain the initial mixed nickel slurry, adjust the current of the ultrasonic equipment to 5±1A, control the working temperature to ≤60°C, and the initial dispersion time is 30 to 120 minutes B. After adding the first mixed nickel slurry processed in step A into an organic carrier, put it into an ultrasonic device for secondary stirring and dispersing treatment to obtain a secondary mixed nickel slurry. The working temperature is controlled to be ≤ 60°C. The time is 25~35 minutes; C, the secondary mixed nickel slurry after step B is processed is put into power mixer and carry out...

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Abstract

The invention discloses a method for preparing nickel electrode slurry for an electronic component. The method comprises the steps of mixing materials, dispersing, rolling and filtering, wherein the dispersing step comprises the following substeps of: A, sequentially weighing an organic solvent and metal powder and placing in an ultrasonic special barrel, placing the ultrasonic special barrel in ultrasonic equipment, and performing primary dispersing treatment to obtain primarily mixed nickel slurry; B, adding organic carries into the primarily mixed nickel slurry obtained after treatment of the step A, placing in the ultrasonic equipment, and performing secondary stirring and dispersing treatment to obtain secondarily mixed nickel slurry; and C, placing the secondarily mixed nickel slurry which is obtained after the treatment of the step B in a power mixer, performing third-time dispersing treatment to obtain nickel slurry which is obtained through dispersing, wherein the autoroatation speed of the power mixer is 600+ / -15 rpm, revolution speed is 30+ / -0.6 rpm, and the third-time dispersing time is 60+ / -5 minutes. In the method, the problems which cannot be solved by common shearing force can be solved by using the mechanical effect and the cavitation effect of sound waves, which are generated in liquid.

Description

technical field [0001] The invention relates to the technical field of preparation of electronic components, more specifically, the invention relates to a preparation method of a nickel electrode slurry for electronic components. Background technique [0002] The chip electronic component market has been developing continuously and steadily in recent years. With the popularization of laptop computers, LCD monitors and flat-panel TVs, 3G communication technology has been gradually promoted and applied throughout the country. The demand for high capacity electronic components is increasing. To make small-sized, high-performance electronic components, good electronic pastes are necessary, such as nickel electrode paste, copper electrode paste, etc. The existing slurry dispersion method mainly adds a dispersant to the slurry for stirring and dispersing. For the electronic slurry using micron-sized metal powder, only using the stirring and dispersing method often results in poor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B1/22
Inventor 贺小贞罗文忠刘静洲唐浩宋永生
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG
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