ENCAPSULATION FILM AND PHOTOVOLTAIC MODULE

WIPO Patent Application WO/2023/115943

A1

Provided in the present invention are an encapsulation film and a photovoltaic module. The encapsulation film comprises an infrared high-transmittance film layer and an infrared high-reflection film layer, which is stacked on the infrared high-transmittance film layer, wherein the light transmittance of the infrared high-transmittance film layer for light within a wavelength range of 700-1100 nm is greater than 55%; the light transmittance of the infrared high-transmittance film layer for light within a wavelength range of 400-700 nm is less than 2%; and the reflectivity of the infrared high-reflection film layer for light within the wavelength range of 700-1100 nm is greater than 75%. By means of using the encapsulation film as an encapsulation film on the back face of a cell piece, a black exterior appearance of the photovoltaic module can be realized so as to reduce light pollution, and sunlight can also be utilized to the maximum extent, such that the overall photoelectric conversion efficiency of the photovoltaic module is improved, thereby improving the efficiency and the service life of a solar cell. Furthermore, by means of applying the encapsulation film to building-integrated photovoltaics (BIPV), both the aesthetics of a building and the efficiency of the photovoltaic module can be taken into consideration.

WEI MENGJUAN (CN)
PENG RUIQUN (CN)
HOU HONGBING (CN)
LIN WEIHONG (CN)

PCT/CN2022/108006

June 29, 2023

July 26, 2022

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HANGZHOU FIRST APPLIED MAT CO LTD (CN)

C09J7/10; C09J7/30; H01L31/048

WO2016107403A1

2016-07-07

CN113980588A	2022-01-28
CN106945378A	2017-07-14
CN110682647A	2020-01-14
CN110643298A	2020-01-03

KANGXIN PARTNERS, P.C. (CN)

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