Highly sustainable polyphenylene sulfide membrane of tailored porous architecture for high-performance lithium-ion battery applications
- Authors
- Kim, Minsung; Hong, Soo Yeong; Bang, Joona; Lee, Sang-Soo
- Issue Date
- 12월-2021
- Publisher
- ELSEVIER
- Keywords
- Lithium-ion battery; Mecahnochemical treatment; Polyphenylene sulfide membrane; Porogen; Porous separator
- Citation
- MATERIALS TODAY ADVANCES, v.12
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS TODAY ADVANCES
- Volume
- 12
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/135624
- DOI
- 10.1016/j.mtadv.2021.100186
- ISSN
- 2590-0498
- Abstract
- Mechanically robust and chemically stable polyphenylene sulfide (PPS) membrane of efficient porous architecture as well as high porosity has been prepared from a PPS/SiO2 composite including homogeneous distribution of SiO(2 )nanoparticles, and its applicability as a separator in lithium-ion battery (LIB) was extensively examined in terms of sustainability of electrochemical behaviors. To improve distribution of SiO(2 )nanoparticles for the incompatible PPS/SiO(2 )mixture, prerequisite for the efficient porous architecture, interface modulation by plasma-assisted mechanochemical (MP) treatment has been performed, and the MP-treated PPS/SiO(2 )composite exhibited perfectly homogeneous distribution of SiO(2 )nanoparticles, finally resulting in porous PPS membrane including a large number of pores with nearly monodisperse pore diameter after removal of SiO(2 )phase. Alongside the well-developed porous architecture, the porous PPS membrane also deployed notably improved wetting to electrolyte imparted by the MP-based interface modulation, which gave rise to the complete suppression of disastrous build-up and intrusion of lithium dendrite on a separator as well as the electrochemical performances superior to those of the existing PP separator such as the highly sustainable cyclic charging/discharging behavior. Furthermore, it was notable that the PPS membrane exhibited outstanding mechanical stability especially at high temperature even after a large number of pores were developed inside, which has been generic from the nature of PPS. Conclusively, it could be stated that the porous PPS separator is a promising candidate fulfilling the performance requirements for the high-performance LIB. (C) 2021 The Authors. Published by Elsevier Ltd.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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