Polycrystalline silicon solar panels are photovoltaic components composed of polycrystalline silicon solar cells.

Relatively low cost: Compared with monocrystalline silicon solar panels, the manufacturing cost of polycrystalline silicon is lower. This is because the production process of polycrystalline silicon is relatively simple, and it does not require high purification and fine processing of silicon materials like monocrystalline silicon. Therefore, in large-scale applications, polycrystalline silicon solar panels have a higher cost performance.
Moderate conversion efficiency: The photoelectric conversion efficiency of polycrystalline silicon solar panels is generally around 12%-18%, which is lower than that of monocrystalline silicon solar panels, but can still meet the needs of most application scenarios

Cell: It is the core power generation element, made of polycrystalline silicon material. Multiple cells are connected together through a specific process to form a battery assembly.
Tempered glass: As the outermost layer of the battery panel, it has the function of protecting the power generation body. At the same time, it needs to have good light transmittance. Usually, ultra-white tempered glass with a transmittance of more than 91% is selected.
EVA: Ethylene-vinyl acetate copolymer, mainly used to bond and fix tempered glass and power generation body. High-quality EVA has high light transmittance and anti-aging ability, which has an important impact on the service life of the component.
Backplane: It mainly plays the role of sealing, insulation and waterproofing. Commonly used backplane materials include TPT (polyvinyl fluoride composite film) and TPE (thermoplastic elastomer), etc., which must have anti-aging properties to ensure the warranty period of the component.

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