콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Effect of liquid oil additive on lithium-ion battery ceramic composite separator prepared with an aqueous coating solution
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-08
- 저자명 Sang Woo Kim, Myung-Hyun Ryou, Yong Min Lee, Kuk Young Cho
- 학술지명 Journal of Alloys and Compounds
- 발행처명 Elsevier
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
- 논문 다운로드 링크(외부) https://doi.org/10.1016/j.jallcom.2016.03.135
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
Ceramic composite separators (CCSs) play a critical role in ensuring safety for lithium-ion batteries (LIBs), especially for mid- and large-sized devices. However, production of CCSs using organic solvents has some cost and environmental concerns. An aqueous process for fabricating CCSs is attractive because of its cost-effectiveness and environmental-friendliness because organic solvents are not used. The success of an aqueous coating system for LIBs is dependent upon minimizing moisture content, as moisture has a negatively impact on LIB performance. In this study, CCSs were fabricated using an aqueous coating solution containing Al2O3 and an acrylic binder. Compared with polyethylene (PE) separators, CCSs coated with an aqueous coating solution showed improved thermal stability, electrolyte uptake, puncture strength, ionic conductivity, and rate capability. In addition, our new approach of introducing a small amount of an oily liquid to the aqueous coating solution reduced the water adsorption by 11.7% compared with coatings that do not contain the oily liquid additive.
