Horizontal electrochemical metal deposition method

Abstract

The invention discloses a method of applying electrochemical metal deposition on a sheet substrate. According to the method disclosed by the invention, a metal anode in the electrochemical metal deposition process is placed above an electrolyte solution level in the electrochemical metal deposition process; after the electrolyte solution in the electrochemical metal deposition process is contacted with the metal anode, the electrolyte solution flows on the upper surface of the sheet substrate from top to bottom; under the effect of the positive electric potential, an oxidation reaction happens to the upper metal anode, electrons are lost, metal ions are generated, the metal anode flows on the upper surface of the sheet substrate along with the electrolyte solution; and the metal ions in the electrolyte solution acquire electrons on a cathode on the sheet substrate, metal is generated and deposed on the surface of the cathode of the sheet substrate.

Description

Technical field [0001] The present invention relates to a method for electrochemical deposition of metal, and in particular to a method for electrochemical deposition of metal on a thin substrate with gaps or continuous levels. The method for electrochemical deposition of metals of the present invention has the characteristics of wide application fields and suitability for large-scale production. Background technique [0002] At present, the most widely used method for generating metal electrodes of crystalline silicon solar cells is to use screen printing technology to print metal pastes, such as silver paste and aluminum paste, on the negative and positive surfaces of crystalline silicon solar cells, respectively. These metal pastes are sintered at high temperature to form the metal electrodes of crystalline silicon solar cells. The advantage of this method is that the process is simple and it is convenient for mass production. [0003] With the substantial reduction in the cos...

AI Technical Summary

Problems solved by technology

But the two kinds of electrochemical deposition metal methods disclosed above can only implement electrochemical deposition metal on the negative electrode of crystalline silicon solar cell

In this way, if both the negative electrode and the positive electrode of the crystalline silicon solar cell need to use the method of electrochemically depositing metal to generate electrodes, the process of electrochemically depositing metal must be carried out separately on the negative electrode and the positive electrode, which is not conducive to large-scale production.

Images