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슁글드 모듈에서 경화조건에 따른 ECA 접합강도와 효율의 상관관계에 관한 연구
전다영(Dayeong Jun),손형진(Hyoungin Son),문지연(Jiyeon Moon),조성현(Seonghyeon Cho),김성현(Sung hyun Kim) 한국태양광발전학회 2021 Current Photovoltaic Research Vol.9 No.2
Shingled module shows high ratio active area per total area due to more efficient packing without inactive space between cells. The module is fabricated by connecting the pre-cut cells into the string using electrically conductive adhesives (ECA). ECAs are used for electric and structural connections to fabricate the shingled modules. In this work, we investigated a correlation between ECA peel strength and the efficiency of pre-cut 5 cells module which are fabricated according to ECA interconnection conditions. The curing conditions are varied to determine whether ECA interconnection properties can affect module properties. As a result of the peel test, the highest peel strength was 1.27 N/mm in the condition of 170°C, the lowest peel strength was 0.89 N/mm in the condition of 130°C. The efficiency was almost constant regardless of the curing conditions at an average of 20%. However, the standard deviation of the fill factor increased as the adhesive strength decreased.