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Crosslinkable polyhedral silsesquioxane-based ceramic-coated separators for Li-ion batteries

Title
Crosslinkable polyhedral silsesquioxane-based ceramic-coated separators for Li-ion batteries
Authors
Jeon, HyunkyuRoh, YoungjoonJin, DaheeRyou, Myung-HyunJeong, Yong-CheolLee, Yong Min
DGIST Authors
Lee, Yong Min
Issue Date
2019-03
Citation
Journal of Industrial and Engineering Chemistry, 71, 277-283
Type
Article
Article Type
Article
Author Keywords
Li-ion batteryCeramic-coated separatorSilsesquioxaneFlame retardancyThermal stability
Keywords
POLYETHYLENE SEPARATORPOLYPROPYLENE SEPARATORSLITHIUMENHANCEMENTPERFORMANCE
ISSN
1226-086X
Abstract
Inorganic polyhedral oligomeric silsesquioxane with epoxy functional groups (ePOSS) is newly presented as a co-binder for the ceramic-coated separator (CCS) for safe Li-ion batteries. The ePOSS-incorporated coating layer significantly improved the dimensional stability of the CCS at 140 °C and maintained the original form even after an ignition test. Although the permeability of the CCS was slightly decreased due to the crosslinked structure of the silsesquioxane coating layer, it showed high electrochemical stability up to 5 V. Moreover, the improved liquid electrolyte wettability by ePOSS co-binder enhanced the ionic conductivity and showed 93% of cycle capacity at 0.5C rate in Li-ion batteries. © 2018 The Korean Society of Industrial and Engineering Chemistry
URI
http://hdl.handle.net/20.500.11750/9502
DOI
10.1016/j.jiec.2018.11.036
Publisher
Korean Society of Industrial and Engineering Chemistry
Related Researcher
  • Author Lee, Yong Min Battery Materials & Systems LAB
  • Research Interests Battery; Electrode; Electrolyte; Separator; Simulation
Files:
There are no files associated with this item.
Collection:
Department of Energy Science and EngineeringBattery Materials & Systems LAB1. Journal Articles


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