US 12,453,191 B2
Solar cell module
Toshiki Matsuoka, Kizugawa (JP); Yusuke Miyamichi, Hikone (JP); Keita Kurosu, Yokohama (JP); and Shoei Sato, Yokohama (JP)
Assigned to KYOCERA CORPORATION, Kyoto (JP)
Appl. No. 17/760,002
Filed by KYOCERA CORPORATION, Kyoto (JP)
PCT Filed Feb. 2, 2021, PCT No. PCT/JP2021/003697
§ 371(c)(1), (2) Date Aug. 3, 2022,
PCT Pub. No. WO2021/161847, PCT Pub. Date Aug. 19, 2021.
Claims priority of application No. 2020-021427 (JP), filed on Feb. 12, 2020.
Prior Publication US 2023/0067862 A1, Mar. 2, 2023
Int. Cl. H10F 19/80 (2025.01); H10F 19/85 (2025.01)
CPC H10F 19/804 (2025.01) [H10F 19/80 (2025.01); H10F 19/85 (2025.01)] 8 Claims
OG exemplary drawing
 
1. A solar cell module, comprising:
a first protective layer comprising a resin and being light transmissive, the first protective layer having a first surface and a second surface opposite to the first surface;
a second protective layer having a third surface facing the second surface, and a fourth surface opposite to the third surface;
a solar cell portion including one or more solar cells between the second surface and the third surface;
a first filler layer covering the one or more solar cells between the second surface and the solar cell portion, the first filler layer comprising a resin;
a second filler layer covering the one or more solar cells between the third surface and the solar cell portion, the second filler layer comprising a resin;
a substrate having a fifth surface facing the fourth surface; and
an adhesive layer bonding the fourth surface and the fifth surface together between the fourth surface and the fifth surface,
wherein
the first protective layer is softer than the substrate,
the adhesive layer has a higher Young's modulus than the first filler layer,
a first interface between the first protective layer and the first filler layer has a first roughness lower than a second roughness of a second interface between the first filler layer and the one or more solar cells,
a thickness of the first protective layer is less than a thickness of the adhesive layer,
the second filler layer includes a layer including granules harder than a resin dispersed in the resin of the second filler layer,
the adhesive layer is formed of a single layer, and
the single layer is in direct contact with the fourth surface and the fifth surface to bond the fourth surface and the fifth surface together.