Components of solar cells

  1. The function of tempered glass is to protect the main body of power generation (such as battery cells), and the selection of light transmittance has requirements: 1. The light transmittance must be high (generally above 91%); 2. Ultra white steel treatment.
  2. EVA is used to bond and fix tempered glass and power generation components (such as battery cells), and the quality of transparent EVA material directly affects the lifespan of the components. Mainly bonding and encapsulating the power generation main body and backboard.
  3. The main function of solar cells is to generate electricity, and the mainstream in the power generation market are crystalline silicon solar cells and thin film solar cells, each with its own advantages and disadvantages.
  4. Backboard function, sealing, insulation, waterproofing (TPT, TPE and other materials are generally used and must be resistant to aging. Most component manufacturers have a 25 year warranty, and tempered glass and aluminum alloy are generally not a problem. The key is whether the backboard and silicone can meet the requirements.)
  5. Aluminum alloy protective laminated parts provide a certain sealing and supporting effect.
  6. The junction box protects the entire power generation system and serves as a current transfer station. If a component is short circuited, the junction box automatically disconnects the short circuited battery string to prevent burning out the entire system connection. The most critical aspect of the junction box is the selection of diodes, which vary depending on the type of battery cells inside the component.
  7. Silicone sealing function is used to seal the junction between components and aluminum alloy frames, as well as between components and junction boxes. Some companies use double-sided adhesive strips and foam to replace silicone. Silicone is widely used in China, which is simple, convenient, easy to operate, and has a low cost.

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