ENCAPSULATION COMPOSITION FOR A SOLARCELL MODULE AND THE SOLARCELL MODULE USING THE SAME

摘要

PURPOSE: An encapsulation composition for solar cell module and a solar cell module using the same are provided to prevent cell deterioration which can be generated from solar cell modules and to suppress power generation efficiency degradation of solar cell module in long time use under high temperature and humidity environment. CONSTITUTION: An encapsulation composition comprises polyolefin based polymer, organic peroxide and photostabilizer. The polyolefin based polymer is ethylene vinyl acetate copolymer. The photostabilizer includes bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate and oligomers which have a melting point of 50-150 deg. Celsius and are represented by chemical formula 1. Here, R1, R2, R3, R4 and R5 are hydrogen or C1-C8 alkyl, R6, R7 and R8 are hydrogen or C1-3 alkyl, and R9 is C1-24 alkyl. n is an integer which satisfies molecular weight of 2000-10000 g/mol.