Patent ID: 9520522
Filing Date: 2016-12-13
CPC Classification: H01L,Y02E

Claim Text:
1. A method of manufacturing a solar cell module comprising: pressing a first silicone gel sheet provided on a sunlight receiving surface of a solar cell string and a second silicone gel sheet provided on an opposite side sunlight non-receiving surface of the solar cell string in a first vacuum to encapsulate the solar cell string with the first and second silicone gel sheets; and then disposing a sunlight receiving surface side of the first silicone gel sheet on one surface of a transparent light receiving panel which is to be a sunlight incidence surface except an outer peripheral region thereof and disposing butyl rubber in a picture frame-like shape along the outer peripheral region of the one surface of the transparent light receiving panel which is to be a sunlight incidence surface where the first silicone gel coating is not formed, or disposing a sunlight non-receiving surface side of the second silicone gel sheet on one surface of a light non-receiving panel or back sheet which is to be a sunlight non-incidence side except an outer peripheral region thereof and disposing butyl rubber in a picture frame-like shape along the outer peripheral region of the one surface of the sunlight non-receiving panel or back sheet which is to be a sunlight non-incidence side where the second silicone gel coating is not formed and laying the light receiving panel and the light non-receiving panel or back sheet over each other with the silicone gel sheet-encapsulated solar cell string on the inside, and pressing them at 100 to 150° C. in a second vacuum for at least one minute but no longer than five minutes to press bond the light receiving panel and the light non-receiving panel or back sheet to each other through the butyl rubber, and wherein the first silicone gel sheet and the second silicone gel sheet are a sheet of a silicone gel obtained by curing a silicone gel composition comprising: (A) an organopolysiloxane having at least one silicon-bonded alkenyl group in one molecule and represented by the following average compositional formula (1): wherein R is an alkenyl group, R (B) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms in one molecule; and (C) a platinum catalyst, the silicone gel having a penetration of 30 to 200.