고전압 LiNi0.5Mn1.5O4 양극 고성능 바인더 개발 연구

Development of Advanced Polymeric Binders for High Voltage LiNi0.5Mn1.5O4 cathodes in Lithium–ion batteries

초록

Spinel LiNi0.5Mn1.5O4 (LNMO) has been considered as one of most promising cathode material, because of its low-cost and competitive energy density. However, 4.7V vs. Li/Li+ of high operating potential facilitates electrolyte degradation on cathode-electrolyte interface during charge-discharge process. In particular, commercial polyvinylidene fluoride (PVDF) is not sutaible for LNMO cathode binder because its weak van der waals force induces thick and non-uniform coverage on the cathode surface. In this review, we study high performance binders for LNMO cathode, which forms uniform coating layer to prevent direct contact between electrolyte and LNMO particle as well as modifying high quality cathode electrolyte interphase, improved cell performace.

키워드

Polymeric binderLNMO cathodecathode-electrolyte interphaseLi-ion battery
제목
고전압 LiNi0.5Mn1.5O4 양극 고성능 바인더 개발 연구
제목 (타언어)
Development of Advanced Polymeric Binders for High Voltage LiNi0.5Mn1.5O4 cathodes in Lithium–ion batteries
저자
윤대희최성훈
DOI
10.22805/JIT.2023.43.1.043
발행일
2023-12
유형
Y
저널명
강원대학교 산업기술연구소 "산업기술연구"
43
1
페이지
43 ~ 48