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Shingled String for the High Performance Photovoltaic Module

고효율 태양광 모듈 제작을 위한 스트링 공정 최적화

  • Jee, Hongsub (Applied Optics And Energy Research Group, Korea Institute Of Industrial Technology) ;
  • Moon, Daehan (Applied Optics And Energy Research Group, Korea Institute Of Industrial Technology) ;
  • Song, Jinho (Applied Optics And Energy Research Group, Korea Institute Of Industrial Technology) ;
  • Jeong, Chaehwan (Applied Optics And Energy Research Group, Korea Institute Of Industrial Technology)
  • 지홍섭 (광에너지융합그룹, 한국생산기술연구원) ;
  • 문대한 (광에너지융합그룹, 한국생산기술연구원) ;
  • 송진호 (광에너지융합그룹, 한국생산기술연구원) ;
  • 정채환 (광에너지융합그룹, 한국생산기술연구원)
  • Received : 2018.07.23
  • Accepted : 2018.12.19
  • Published : 2018.12.31

Abstract

The High Performance Module With The Shingled String Has Several Advantages Such As The Larger Active Area, Higher Open-Circuit Voltage And Smaller Cell To Module (Ctm) Loss. To Obtain Increase Of Power In Pv Shingled Module, The Detailed Condition Of Various Parameters Related To Cutting And Bonding Process Were Investigated In This Study. We Searched The Optimized Cutting Conditions Of Laser Scan Speed, The Number Of Laser-Scribing And Also Bonding Conditions Of Electrically Conductive Adhesives (Eca) By Varying Amount Of Eca, Curing Time And Curing Temperature. The Shingled Pv Module Showed 25.4W of Maxmimum Power At 60 Rpm Of Dipensing Motor Speed, 30 Seconds Of Curing Time And $140^{\circ}C$ Of Curing Temperature, Respectively.

Keywords

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Fig. 1. Schematics of string array

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Fig. 2. Top view of laser-scribed cells with scan speed

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Fig. 3. Cross-sectional views of laser-scribed cells with scan sped

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Fig. 4. Cross-sectional views of laser scribed cells with the repetition number of scan

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Fig. 5. Output power difference between theocratical and measured samples with dispensing speed

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Fig. 6. Output power difference between theocratical and measured samples with curing time

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Fig. 7. Output power difference between theocratical and measured samples with curing temperature

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