Photovoltaic module manufacture
View Patent ↗A method for manufacturing a photovoltaic module including a laminating step.
1. A method for manufacturing a photovoltaic module comprising:
heating a photovoltaic module to a temperature above 100 degrees C.; and
applying an electrical bias to the heated photovoltaic module,
wherein the step of heating the photovoltaic module occurs during a lamination process further comprising:
placing a photovoltaic module interlayer in contact with a photovoltaic module substrate before heating the photovoltaic module; and
pressing the interlayer and the substrate together.
2. The method of claim 1 , wherein applying an electrical bias to the photovoltaic module takes place during the lamination process.
3. The method of claim 1 , wherein applying an electrical bias to the photovoltaic module takes place after the lamination process.
4. The method of claim 1 , wherein the lamination process has a duration of 1 to 60 minutes.
5. A method for manufacturing a photovoltaic module comprising:
heating a photovoltaic module to a temperature above 100 degrees C.; and
applying an electrical bias to the heated photovoltaic module,
wherein applying an electrical bias to the photovoltaic module takes place after heating the photovoltaic module.
6. The method of claim 5 , wherein applying an electrical bias has a duration substantially the same as that of heating the photovoltaic module.
7. The method of claim 5 , wherein applying the electrical bias includes supplying constant current.
8. The method of claim 5 , wherein applying the electrical bias includes supplying constant voltage.
9. The method of claim 5 , wherein the electrical bias generates a current that is in the range of 0.3-5 times of the short circuit current of the photovoltaic device.
10. The method of claim 5 , wherein heating the photovoltaic module comprises heating the photovoltaic module to a temperature in the range of 100 to 220 degree C.
11. The method of claim 5 , wherein the step of applying the electrical bias comprises applying the electrical bias for 1 to 60 minutes.
12. A method for manufacturing a photovoltaic module comprising:
heating a photovoltaic module to a temperature above 100 degrees C.; and
applying an electrical bias to the heated photovoltaic module,
wherein applying an electrical bias has a duration longer or shorter than that of heating the photovoltaic module.
13. A system for manufacturing a photovoltaic module comprising:
a conditioning station including a heater configured to heat a photovoltaic module to a temperature greater than 100 degrees C.;
a power source configured to apply an electrical bias to the photovoltaic module;
a laminator configured to press a photovoltaic module interlayer and photovoltaic module substrate together after a photovoltaic module is heated; and
a conveyor to transport a photovoltaic module from the laminator.
14. The system of claim 13 , wherein the power source is configured to apply the electrical bias to a photovoltaic module subsequent to the heater heating the photovoltaic module or is configured to apply the electrical bias to a photovoltaic device simultaneous to the heater heating the photovoltaic module.
15. The system of claim 13 , wherein the power source is set at a constant current or is set at a constant voltage.
16. The system of claim 13 , further comprising a photovoltaic module including one or more of thin film photovoltaic device, cadmium telluride photovoltaic device, CIGS photovoltaic device, or amorphous silicon photovoltaic device.
17. The system of claim 13 , wherein the interlayer comprises a thermoplastic material.