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SAICAS를 이용한 리튬이차전지용 복합전극 결착특성 분석

Analysis on Adhesion Properties of Composite Electrodes for Lithium Secondary Batteries using SAICAS

  • 변승우 (대구경북과학기술원 에너지공학전공) ;
  • 노영준 (대구경북과학기술원 에너지공학전공) ;
  • 진다희 (한밭대학교 화학생명공학과) ;
  • 유명현 (한밭대학교 화학생명공학과) ;
  • 이용민 (대구경북과학기술원 에너지공학전공)
  • Byun, Seoungwoo (Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST)) ;
  • Roh, Youngjoon (Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST)) ;
  • Jin, Dahee (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Ryou, Myung-Hyun (Department of Chemical and Biological Engineering, Hanbat National University) ;
  • Lee, Yong Min (Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST))
  • 투고 : 2018.03.28
  • 심사 : 2018.04.24
  • 발행 : 2018.05.31

초록

복합전극의 결착특성은 리튬이차전지의 장기신뢰성 확보와 고에너지밀도 구현을 위한 중요한 물성임에도 불구하고, 측정 기술의 한계로 관련 연구가 제한적이었다. 하지만, $1{\sim}1000{\mu}m$ 두께의 코팅층을 절삭 및 박리하면서 결착특성을 측정할 수 있는 SAICAS(Surface And Interfacial Cutting Analysis System)란 장비의 출현으로 전극 결착특성 연구가 활발해지고 있다. 따라서, 본 총설에서는 SAICAS를 이용한 복합전극의 결착특성 분석 원리 및 측정 방법뿐만 아니라, Peel Test와 같은 기존 결착특성 분석 방법과 비교함으로써 SAICAS를 이용한 분석 방법의 신뢰성 검증 결과를 제시한다. 또한, 전극 설계의 최적화, 신규 바인더 도출 연구, 복합전극 내 바인더 분포 등의 연구에서 SAICAS가 적용된 사례를 소개한다. 이를 통해 SAICAS를 이용한 분석 방법이 리튬이차전지용 복합전극의 결착특성 분석에 용이하게 적용될 수 있음을 제안한다.

과제정보

연구 과제 주관 기관 : Korea Institute for Advancement of Technology (KIAT)

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