Solar cell preparation method and solar cell module

A solar cell and module technology, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problem of low output power of solar cell modules, and achieve the effect of reducing current, reducing electrical loss, and preventing fragmentation
CN108963009AActive Publication Date: 2018-12-07YINGLI ENERGY CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YINGLI ENERGY CHINA
Publication Date
2018-12-07

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Abstract

The invention is applicable to the technical field of photovoltaic power generation, and provides a solar cell preparation method and a solar cell module. The method comprises: doping a front surfaceof a first doping area and a back surface of a second doping area in a substrate with N-type impurities after the substrate is subjected to a texturing process; depositing a first aluminum oxide filmand a first silicon nitride film on a front surface of the substrate, and depositing a second aluminum oxide film and a second silicon nitride film on a back surface of the substrate; forming first open slots in a front surface of the second doping area in the substrate, and forming second open slots on a back surface of the first doping area; preparing gate lines and performing a sintering process, wherein main gate lines on the front surface of the first doping area are connected to main gate lines on the front surface of the second doping region. The solar cell preparation method can prevent fragmentation of a solar cell caused by laser scribing, and can increase the output power of the solar cell module.
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Description

technical field

[0001] The invention belongs to the technical field of photovoltaic power generation, and in particular relates to a method for preparing a solar cell and a solar cell module. Background technique

[0002] Photovoltaic power generation is an important field of new energy development, and improving the output power per unit area of ​​solar cells is the ultimate goal of photovoltaic technology progress. Existing solar cell modules usually cut the solar cells into multiple small cells by laser scribing, and then connect the small cells in series to form battery strings through welding ribbons. However, the electrical performance loss is caused by the welding ribbons, and , The laser scribing process will bring additional damage to the solar cell, resulting in a reduction in the output power of the solar cell module. Contents of the invention

[0003] In view of this, the embodiments of the present invention provide a method for preparing a solar cell and a so...

Claims

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