Solar cell (PV) is now a very popular clean energy product, it has many categories and different parameters.

　　According to the production materials, it can be divided into silicon-based semiconductor batteries, CdTe thin-film batteries, CIGS thin-film batteries, dye-sensitized thin-film batteries, organic materials batteries, etc.

　　Among them, crystalline silicon cells are further divided into monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous thin film cells.

　　The performance parameters of solar cells consist of open circuit voltage, short circuit current, maximum output power, fill factor, conversion efficiency, etc. These parameters are a measure of the performance of solar cells. The most important parameter is the photoelectric conversion efficiency.

　　Among the silicon-based solar cells developed in the laboratory, the efficiency of monocrystalline silicon cells is 25.0%, the efficiency of polycrystalline silicon cells is 20.4%, the efficiency of CIGS thin-film cells is 19.6%, the efficiency of CdTe thin-film cells is 16.7%, and the efficiency of amorphous silicon thin-film battery is 10.1%

　　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.