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

SAICAS를 이용한 리튬이차전지용 복합전극 결착특성 분석

  • 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))
  • 변승우 (대구경북과학기술원 에너지공학전공) ;
  • 노영준 (대구경북과학기술원 에너지공학전공) ;
  • 진다희 (한밭대학교 화학생명공학과) ;
  • 유명현 (한밭대학교 화학생명공학과) ;
  • 이용민 (대구경북과학기술원 에너지공학전공)
  • Received : 2018.03.28
  • Accepted : 2018.04.24
  • Published : 2018.05.31

Abstract

Although the adhesion properties of composite electrodes are important for securing long-term reliability and realizing high energy density of lithium secondary batteries, related research has not been carried out extensively due to the limitation of measurement technology. However, surface and interfacial cutting analysis system(SAICAS), which can measure the adhesion properties while cutting and peeling a coating layer of $1{\sim}1000{\mu}m$ thickness, has been developed and applied for analyzing the adhesion properties of composite electrodes for lithium secondary batteries. Thus, this review presents not only the principle and measurement method of SAICAS but also comparison results between SAICAS and conventional peel test. In addition, application examples of SAICAS are introduced in the study of electrode design optimization, new binder derivation study, and binder distribution in composite electrode. This suggests that SAICAS is an analytical method that can be easily applied to investigate the adhesion properties of composite electrodes for lithium secondary batteries.

Acknowledgement

Supported by : Korea Institute for Advancement of Technology (KIAT)

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