Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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A Study on Correlation Peel Strength and the Efficiency of Shingled Modules According to Curing Condition of Electrically Conductive Adhesives

슁글드 모듈에서 경화조건에 따른 ECA 접합강도와 효율의 상관관계에 관한 연구

  • Jun, Dayeong (New & Renewable Energy Research Center, Korea Electronic Technology Institute) ;
  • Son, Hyoungin (New & Renewable Energy Research Center, Korea Electronic Technology Institute) ;
  • Moon, Jiyeon (New & Renewable Energy Research Center, Korea Electronic Technology Institute) ;
  • Cho, Seonghyeon (New & Renewable Energy Research Center, Korea Electronic Technology Institute) ;
  • Kim, Sung hyun (New & Renewable Energy Research Center, Korea Electronic Technology Institute)
  • 전다영 (신재생에너지 연구센터, 전자부품연구원) ;
  • 손형진 (신재생에너지 연구센터, 전자부품연구원) ;
  • 문지연 (신재생에너지 연구센터, 전자부품연구원) ;
  • 조성현 (신재생에너지 연구센터, 전자부품연구원) ;
  • 김성현 (신재생에너지 연구센터, 전자부품연구원)
  • Received : 2021.04.07
  • Accepted : 2021.04.29
  • Published : 2021.06.30
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Abstract

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℃, the lowest peel strength was 0.89 N/mm in the condition of 130℃. 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.

Keywords

Acknowledgement

본 연구는 산업통상자원부의 신재생에너지기술개발사업(20203030010300, 20193010014530)의 일환으로 수행되었습니다.

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