Photovoltaic modules are the core part of the solar power system, and their production process directly affects the performance and life of the photovoltaic system. With the rapid development of the solar industry, the demand for lightweight photovoltaic modules is also increasing. In this article, we will introduce the production process of lightweight photovoltaic modules in order to better understand and master this technology.
At present, the new PV module production lines in China have a relatively high degree of automation, and the specific processes of module production processes include: laser slicing, cell stringing, lamination, framing, curing, cleaning, IV&EL testing, etc., and finally packaging and warehousing and entering the market.
1. Preparation of silicon wafers.
Silicon wafers are the basic materials of photovoltaic modules, and their quality directly affects the conversion efficiency of photovoltaic modules. In the wafer preparation process, the silicon is first smelted and ingoted, then sliced and cleaned. Among them, the slicing process is a key link, which requires the use of advanced cutting technology, such as laser cutting, wire cutting, etc., to ensure the flatness and thickness of the silicon wafer.
2. Battery preparation.
Batteries are the core part of photovoltaic modules, and their role is to convert solar energy into electricity. During cell preparation, silicon wafers need to be doped and diffused to form a PN junction. After that, the electrodes need to be prepared and soldered, as well as the packaging of the backplane. Among them, the preparation of the electrode requires advanced screen printing technology to ensure the conductivity and stability of the electrode.
3. Component packaging.
Module packaging is the last process of photovoltaic module manufacturing, and its role is to assemble the cell, backsheet, junction box and other components together to form a complete photovoltaic module. In the encapsulation process, advanced lamination technology is required to ensure the tightness and stability of the components. At the same time, attention needs to be paid to the appearance and quality of the components to ensure that they can meet the needs of the customer. Zhongbu Qingtian New Energy can provide turnkey solutions for 10-500MW photovoltaic module production lines.
Fourth, quality inspection.
Quality inspection is an important part of ensuring the quality and stability of photovoltaic modules. In the testing process, it is necessary to test the appearance, electrical performance, and thermal performance of photovoltaic modules. At the same time, the durability and reliability of PV modules need to be tested to ensure that they can operate stably under different environmental and climatic conditions.
5. Summary. The production process of lightweight photovoltaic modules includes silicon wafer preparation, cell preparation, module packaging and quality inspection. In the production process, advanced processes and technologies need to be adopted to ensure the stability and reliability of photovoltaic modules. At the same time, attention needs to be paid to environmental protection and resource efficiency in order to achieve sustainable development. In the future, with the continuous development of the solar energy industry, the production process of lightweight photovoltaic modules will be more mature and perfect, creating more value and benefits for human beings.