콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Elucidating the polymeric binder distribution within lithium-ion battery electrodes using SAICAS
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2018-07
- 저자명 Kyuman Kim, Seoungwoo Byun, Jaecheol Choi, Seungbum Hong, 유명현, 이용민
- 학술지명 ChemPhysChem
- 발행처명 chemistry europe
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 6
- 논문 다운로드 링크(외부) https://doi.org/10.1002/cphc.201800072
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
Polymeric binder distribution within electrodes is crucial to guarantee the electrochemical performance of lithium-ion batteries (LIBs) for their long-term use in applications such as electric vehicles and energy-storage systems. However, due to limited analytical tools, such analyses have not been conducted so far. Herein, the adhesion properties of LIB electrodes at different depths are measured using a surface and interfacial cutting analysis system (SAICAS). Moreover, two LiCoO2 electrodes, dried at 130 and 2308C, are carefully prepared and used to obtain the adhesion properties at every 10 μm of depth as well as the interface between the electrode composite and the current collector. At high drying temperatures, more of the polymeric binder material and conductive agent appears adjacent to the electrode surface, resulting in different adhesion properties as a function of depth. When the electrochemical properties are evaluated at different temperatures, the LiCoO2 electrode dried at 1308C shows a much better high-temperature cycling performance than does the electrode dried at 2308C due to the uniform adhesion properties and the higher interfacial adhesion strength.
