CRACK RESISTANT SOLAR CELL MODULES

摘要

A crack resistant solar cell module includes a protective package mounted on a frame. The protective package includes a polyolefin encapsulant that protectively encapsulates solar cells. The polyolefin has less than five weight percent of oxygen and nitrogen in the backbone or side chain. In other words, the combined weight percent of oxygen and nitrogen in any location in the molecular structure of the polyolefin is less than five. The polyolefin also has a complex viscosity less than 10,000 Pa second at 90° C. as measured by dynamic mechanical analysis (DMA) before any thermal processing of the polyolefin. The protective package includes a top cover, the encapsulant, and a backsheet. The solar cell module allows for shipping, installation, and maintenance with less risk of developing cracks on the surfaces of the solar cells.

主权项

1. A method of manufacturing a solar cell module, the method comprising:
providing an encapsulant for a solar cell module, the encapsulant comprising polyolefin having less than five weight percent of oxygen and nitrogen in a backbone or side chain and having a complex viscosity that is less than 10,000 Pascal second at 90° C. as measured by dynamic mechanical analysis before protectively packaging a plurality of solar cells in the encapsulant to create a protective package; protectively packaging the plurality of solar cells in the encapsulant to create the protective package; and mounting the protective package on a frame