Role of PVDF in Rheology and Microstructure of NCM Cathode Slurries for Lithium-Ion Battery
2020 · Materials
저자
Sang Hoon Sung, Sunhyung Kim, Jeong Hoon Park, June Dong Park, 안경현 (Kyung Hyun Ahn)
연구주제
Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
NTIS 과학기술표준분류
배정 근거: 지원 과제의 분류와 AI 키워드가 잡은 과제의 분류를 반씩(정책 연계 맵과 같은 방법).
AI 연구 키워드·방법
전지 전극 슬러리 카본블랙 분산 nmc cathode 폴리불화비닐리덴(PVDF) 바인더
키워드 (OpenAlex)
polyvinylidene fluoride NCM cathode N-methyl-2-pyrrolidone carbon black polyvinylpyrrolidone surface adsorption suspension microstructure matrix viscosity
초록
A binder plays a critical role in dispersion of coating liquids and the quality of coating. Poly(vinylidene fluoride) (PVDF) is widely used as a binder in cathode slurries; however, its role as a binder is still under debate. In this paper, we study the role of PVDF on the rheology of cathode battery slurries consisting of Li(Ni1/3Mn1/3Co1/3)O2 (NCM), carbon black (CB) and N-methyl-2-pyrrolidone (NMP). Rheology and microstructure of cathode slurries are systemically investigated with three model suspensions: CB/PVDF/NMP, NCM/PVDF/NMP and NCM/CB/PVDF/NMP. To highlight the role of PVDF in cathode slurries, we prepare the same model suspensions by replacing PVDF with PVP, and we compare the role of PVDF to PVP in the suspension rheology. We find that PVDF adsorbs neither onto NCM nor CB surface, which can be attributed to its poor affinity to NCM and CB. Rheological measurements suggest tha…
이 논문을 지원한 국가R&D 과제 (NTIS 성과)
| 연도 | 과제 | 부처 | 사업 | 수행기관 | NTIS 분류(1순위) |
|---|---|---|---|---|---|
| 2020 | 코팅기반 화학공정 연구센터 | 과학기술정보통신부 | 집단연구지원(R&D) | 서울대학교 | 화공 > 화학공정 > 기초유기소재 공정기술 |
| 2020 | 화공분야연구인력양성사업단 | 교육부 | BK21플러스사업(R&D) | 서울대학교 | – |
인접 그래프
노드 hover = 이웃 강조 · 1회 클릭 = 고정 · 고정된 노드 다시 클릭 = 페이지 이동
이 문서와 연결된 페이지
교수 1
연구주제 1
Advancements in Battery Materials
정책분야 1
키워드 3
전지 전극 슬러리 · 카본블랙 분산 · 폴리불화비닐리덴(PVDF) 바인더