Solar photovoltaic modules, also called solar cells, are also the most important part of solar power generation systems.

　　The production process of solar cells is:

　　1. Battery strip test

　　In order to effectively improve the consistency, it should be classified according to its performance parameters. The main test items are output voltage and output power.

　　2. Front welding

　　Weld a bus tape (tinned copper tape) about twice the length of the battery side to the bus bars of the positive and negative poles of the solar cell strip.

　　3. Component series connection

　　The operator uses an electric soldering iron and solder wire to connect the positive and negative lead wires of each solar cell component in series to form a large assembly.

　　4. Laying

　　After the components are connected in series and passed the inspection, the order from bottom to top is executed, that is, tempered glass, EVA, battery sheet, EVA, glass fiber, backplane, and lay them.

　　5. laminated

　　Put the laid components into a laminator that can create a vacuum environment, heat to melt the EVA and bond the battery, glass and back plate together, and finally cool down and take out the components. The lamination process is a key step in component production.

　　6. Trimming

　　After the EVA melts, it extends outward due to pressure to form burrs, so the burrs should be cut off after lamination.

　　7. Framing

　　Similar to installing a mirror frame on the glass, the aluminum frame can increase the strength of the components, further seal the battery components, and extend the service life of the battery. The gaps are filled with silicone resin.

　　8. Welding junction box

　　Solder a box at the lead on the back of the module to facilitate the connection between the battery and other devices or batteries.

　　9. high-pressure test

　　Test the voltage resistance and insulation strength of the components to ensure that the components are not damaged under harsh natural conditions such as lightning strikes.

　　10. Component test

　　Calibrate the output power of the finished product, test its output characteristics, and determine the quality level of the components.

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect replacement for lead-acid batteries, and they are the first choice for grid-connected peak shaving, off-grid energy storage, photovoltaic energy storage, UPS, data center and other industries.

　　Solar power generation system with lithium battery energy storage system is a very promising clean energy.