Solar cell and method for producing grid line electrode of solar cell

Abstract

The invention discloses a solar cell and a method for producing a grid line electrode of the solar cell. The method for producing the grid line electrode is that a layer of transparent insulation material is coated or settled on a cell surface; the transparent insulation material on grid lines is removed through using a laser scribing method, a die pressing method, a dry / wet etching method and the like, and the grid lines are exposed; and a conducting material which is used as a grid line electrode is plated on the grid line through using a plating method. The method for producing the grid line electrode can form a circuit pattern of the grid line electrode at one time, so that the production efficiency is effectively improved, moreover, the production temperature can be indoor temperature, and the performance of a current generation body cannot be influenced; the method for producing the grid line electrode is relatively simple, does not have unnecessary steps, and the arranged transparent insulation material can well protect the cell, so that the product service life is prolonged; and the method for producing the grid line electrode can also relatively accurately control the thickness and the width of the grid line electrode, the material utilization rate is also high, and the production cost is relatively low.

Description

technical field [0001] The invention relates to a manufacturing method of a solar cell and an electrode thereof, in particular to a manufacturing method of a solar cell and a grid line electrode thereof. Background technique [0002] refer to image 3 , The solar cell includes a solar cell that plays a basic supporting role and electrodes connected to the surface of the cell, and the current generated by the cell is derived through the electrode. In order to reduce power loss, the electrodes of solar cells are mostly grid electrodes in a grid pattern by reducing the distance of current. (busbar), the sub grid line and the bus bar line are cross-connected as one; the current generator absorbs sunlight and converts light energy into electrical energy, and the generated current is collected on the sub grid line, and the sub grid line collects the current in the longitudinal arrangement On the bus bar and the flow is collected by the bus bar. [0003] The grid line electrodes ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a solar cell and a method for making grid wire electrodes thereof, so as to overcome the high production cost of grid wire electrodes, large waste of silver material, high production environment temperature, and the thickness of the prepared grid wire electrodes existing in the prior art. and the width cannot be well and accurately controlled, the product quality is not high, and the preparation of the grid line electrode cannot be completed at one time.

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