Encapsulation interpretation of solar photovoltaic panel

Because the output power of a single cell is too small, it is difficult to meet the conventional electricity demand, so it needs to be packaged as a component to improve its output power. Packaging is a key step in the production of solar cells, without a good packaging process, no matter how good the battery can produce a good component. The packaging of the battery can not only ensure the life of the battery, but also enhance the resistance strength of the battery.
The high quality and long life of the product is the key to win customer satisfaction, so the quality of the package of the component is very important.
The smallest indivisible solar cell combination device with an external package and internal connection that can separately provide direct current output is called a solar cell module, that is, a plurality of single solar cells are interconnected and packaged to become a module. The solar cell module is the core part of the solar power generation system, but also the most important part of the solar power generation system.
1. Prevent solar cell damage. The reason why crystalline silicon solar cells are easy to damage: crystalline silicon is brittle; Silicon solar cell area is large; Silicon solar cells are small in thickness.
2. Prevent solar cells from corrosion and failure. The natural resistance of solar cells is poor: the efficiency of solar cells exposed to the air for a long time will decay; The resistance of solar cells to ultraviolet rays is poor; Solar cells can not resist the damage caused by excessive mechanical stress caused by external forces such as hail; The metallized layer on the surface of solar cells is prone to corrosion; Dust accumulates on the surface of solar cells and is difficult to remove.
3. Meet the load requirements, series or combined into a minimum unit that can be used independently as a power source. Since the output power of a single solar cell is difficult to meet the conventional demand for electricity, it is necessary to connect them in series or parallel to electrical appliances for power supply.