고전압 LiNi₀.₅Mn₁.₅O₄ 양극 고성능 바인더 개발 연구

• 영문명: Development of Advanced Polymeric Binders for High Voltage LiNi0.5Mn1.5O4 cathodes in Lithium-ion batteries
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 윤대희(Dae Hui Yun) 최성훈(Sunghun Choi)
• 간행물 정보: 『산업기술연구』vol.43, 43~48쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2023.12.31

영문 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.

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키워드

Polymeric binder LNMO cathode cathode-electrolyte interphase Li-ion battery