Manufacturing method of grid array electrode of crystalline silicon solar cell

A technology of solar cells and array electrodes, which is applied in the direction of final product manufacturing, sustainable manufacturing/processing, circuits, etc., can solve the problems of difficult preparation of micro-array electrodes, large coverage area of ​​silk-screen electrodes, etc., to achieve reduced production costs, superior performance, The effect of improving productivity
CN101807625AActive Publication Date: 2010-08-18SOUTH CHINA NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2010-08-18

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Abstract

The invention discloses a manufacturing method of a grid array electrode of a crystalline silicon solar cell. The method comprises the following steps: (1) protective film coating; (2) laser grooving; (3) surface activation processing; (4) electroplating: adopting a conventional electroplating power source and a conventional electroplating bath, connecting the cathode of the power source to a pre-treated silicon semiconductor, and connecting the anode of the power source to a conduction metal; and turning on the power source, and electroplating at the current density of 0.5-10 A / dm<2>; and (5) protective film removing. Using the method, the production efficiency is obviously raised to realize the preparation of the electrode array in a shorter time, the prepared electrode is uniform and bright, and meanwhile, the bath solution is easy to be maintained; and compared with the commonly-used chemical plating, screen printing and the like, the remedies used in the method for preparing the electrode by direct electroplating are cheaper, and are easy to be obtained. The invention is beneficial to emission reduction, consumption lowing and production cost decrease; and the method has the advantages of simple operation, high bonding force between the electrode wire and the matrix, uniformity and low void ratio.
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Description

technical field

[0001] The invention belongs to the technical field of surface treatment of crystalline silicon materials, and in particular relates to a method for manufacturing grid-like array electrodes with p / n crystalline silicon solar cells. Background technique

[0002] With the increasing tension of global energy sources, solar energy has unique advantages such as no pollution, no mechanical rotating parts, easy maintenance, unattended operation, short construction period, random scale, easy combination with buildings, and large market space. The advantages are widely valued by countries all over the world, and many large companies in the world have invested in the research and development and production of solar cells.

[0003] In the past ten years, the application cost of silicon solar cells has been greatly reduced by reforming manufacturing methods and improving product performance. However, it is necessary to further reduce the manufacturing cost and improve t...

Claims

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