Solar electrode structure and solar cell employing same

Abstract

The invention discloses a solar electrode structure and a solar cell employing the same. A solar cell comprises an electrode and a battery, wherein the electrode comprises thin films and a metal conductor, the thin films are coated at two sides of the metal conductor, the metal conductor at a positive end of the electrode is attached onto the electrode on a light-receiving surface of the solar cell, the metal conductor at a negative end is attached onto the electrode on a backlight surface of the solar cell, and a series structure or a parallel structure is formed from elemental cells according to an actual demand. By the solar electrode structure, the photoelectric conversion rate of the cell is improved, and the solar electrode structure is wide in application range; a rectangular grid line and a main grid line are prevented from being fabricated by employing printing and sintering processes to cover a cell surface, the usage of a large amount of silver paste is reduced, the shielding region is reduced, the photoelectric conversion rate of the solar cell is improved, damage of welding and stress of the metal conductor to the solar cell is reduced, the product reliability is improved, the silver paste for fabricating a grid line structure is reduced, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a solar electrode structure and a solar cell using the electrode structure. Background technique [0002] As a clean energy alternative to traditional fossil energy, solar energy has achieved rapid development in the field of ground power stations and distributed power generation in recent years, and civilian solar products also show great potential and space. Traditional solar cell modules and civil solar products especially require a variety of electrode structures to meet the electrical performance requirements in different applications. [0003] At present, there are two main types of electrode structures for solar photovoltaic modules: silicon-based thin films, and some copper indium gallium selenium cell components. After large-area deposition of functional layers, laser etching or mechanical scribing and conductive electrode filling are used to form series and parallel circuits....

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an electrode, battery and components of a solar cell, so as to solve the problem of silicon chip breakage and hidden cracks caused by the busbar welding ribbon when the traditional solar cell uses a large amount of silver paste to affect the light-receiving area of ​​the cell and the solar cell is composed of a series-parallel structure. The problem

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