发明名称 |
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. |
申请公布号 |
US9035172(B2) |
申请公布日期 |
2015.05.19 |
申请号 |
US201213685441 |
申请日期 |
2012.11.26 |
申请人 |
SunPower Corporation |
发明人 |
Kim Sung Dug;Boitnott Nicholas |
分类号 |
H01L31/048;H01L31/18 |
主分类号 |
H01L31/048 |
代理机构 |
Okamoto & Benedicto LLP |
代理人 |
Okamoto & Benedicto LLP |
主权项 |
1. A solar cell module comprising:
a plurality of solar cells; an encapsulant encapsulating the plurality of solar cells, the encapsulant comprising polyolefin having less than 5 weight percent oxygen and nitrogen in a backbone or side chain, the polyolefin having a complex viscosity less than 10,000 Pa-s at 90° C. as measured by dynamic mechanical analysis before any thermal processing of the encapsulant; a transparent top cover on a front portion of the solar cell module, the front portion facing the sun during normal operation; and a backsheet on a back portion of the solar cell module, wherein the polyolefin comprises polyethylene. |
地址 |
San Jose CA US |