A kind of solar cell grid material and its manufacturing process

A solar cell and manufacturing process technology, which is applied in manufacturing tools, cable/conductor manufacturing, circuits, etc., can solve the problems of multiple processes and low battery production efficiency, and achieve uniform material distribution, increased production efficiency, and excellent bending fatigue strength Effect
CN109763153BActive Publication Date: 2021-01-22江苏安澜万锦电子股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
江苏安澜万锦电子股份有限公司
Publication Date
2021-01-22
Patent Text Reader

Abstract

The invention discloses a manufacturing process of a solar cell grid material. The process comprises the steps that a copper-silver alloy wire containing 0.2%-0.4% of silver is electroplated, and thethickness of a nickel plating layer is 19 microns to 25 microns; the nickel-plated copper-silver alloy wire obtained in the first step is subjected to multi-pass rough drawing; the nickel-plated copper-silver alloy wire obtained in the second step is subjected to multi-pass fine drawing; and the nickel-plated copper-silver alloy wire obtained in the third step is subjected to annealing. The grid conductive material alloy wire is separately produced and does not occupy cells, so that the production efficiency is greatly improved. The bending fatigue strength of the grid conductive main body material is better than that of materials described in comparative documents, and the material can be applied to conventional crystalline silicon solar cells and bendable flexible thin film solar cells.
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Description

technical field

[0001] The invention belongs to the technical field of solar cell grid material preparation, and mainly relates to a process for manufacturing a nickel-plated copper-silver alloy grid material. Background technique

[0002] The solar cell production process includes the preparation of the gate, and the selection of the gate material directly affects the preparation process, efficiency and cost of the gate, and ultimately affects the performance and manufacturing cost of the solar cell. Traditional solar cell grids are usually manufactured by silver paste screen printing, but the cost of silver paste for traditional solar cell grid wire electrodes is high, and the cost of screen printing machines is relatively high, which makes the process of preparing silver grid electrodes by screen printing Accounted for a large cost of solar cells.

[0003] The document with the application number CN201610963416 uses a fine metal wire coated with a nano-silver film as the...

Claims

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