Production process for integrated solar cell with diodes and manufacturing method for photovoltaic assembly

Abstract

The invention discloses a production process for an integrated solar cell with diodes and a manufacturing method for a photovoltaic assembly. The production process comprises the following steps of: generating completely-isolated diodes on part of the back surface of the cell by virtue of the design concept of integrated circuits, a photoetching technology and an etching process; printing the same paste on the back surfaces of cell slices by virtue of a printing silk screen, and connecting the negative poles of the diodes with the positive pole of the cell (or connecting the positive poles of the diodes with the negative pole of the cell); and forming the integrated solar cell which is characterized in that the front surface is provided with the cell while the back surface is partially provided with the diodes. One end of the cell is connected with the diodes, and the other end of the cell is independent. During a process of producing an assembly by using the cell, the cell is connected with the electrodes of the diodes by virtue of a welding strip welding process, so as to form the photovoltaic assembly without a need to be externally connected with bypass diodes.

Description

technical field [0001] The invention relates to the technical field of solar cells and photovoltaic components, in particular to a production process of solar cells with integrated diodes and a manufacturing method of photovoltaic components. Background technique [0002] Photovoltaic modules are an important part of photovoltaic systems, and solar cells are the core of photovoltaic modules. The stability and reliability of photovoltaic modules directly affect the working status of photovoltaic systems. The structure of solar cells determines the packaging process and technical performance of components. [0003] The characteristics of traditional photovoltaic modules produced at home and abroad are: [0004] ① Photovoltaic module products are composed of battery strings, busbars, packaging materials, junction boxes and other parts. [0005] ②The busbar connects the battery strings, and then connects with the junction box. [0006] ③Encapsulation materials include glass,...

AI Technical Summary

Problems solved by technology

In this way, the volt-ampere characteristic curve of the battery is extremely poor, and it can only play a general role, such as image 3 shown

As for the components made of this kind of battery, since the battery has four electrodes, the welding process is more complicated, and the appearance after welding is not beautiful.

Images