Surface-modified polyethylene separator via oxygen plasma treatment for lithium ion battery

[Display omitted] The separator is an important component in lithium ion batteries (LIBs). However, commercial separators such as polyethylene (PE) and polypropylene (PP) are in urgent need to be modified to improve the surface properties to meet requirements for high performance LIBs. In this study...

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Bibliographic Details
Published in:Journal of industrial and engineering chemistry (Seoul, Korea) 2017, 45(0), , pp.15-21
Main Authors: Jin, So Yeon, Manuel, James, Zhao, Xiaohui, Park, Won Ho, Ahn, Jou-Hyeon
Format: Article
Language:English
Subjects:
Electrolyte wettability
Lithium ion batteries
Plasma treatment
Separator
Surface modification
화학공학
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Summary:[Display omitted] The separator is an important component in lithium ion batteries (LIBs). However, commercial separators such as polyethylene (PE) and polypropylene (PP) are in urgent need to be modified to improve the surface properties to meet requirements for high performance LIBs. In this study, oxygen plasma has been applied to modify the surface of PE separating membrane with functional groups, which has greatly improved the electrolyte wettability and retention of PE separators. The cells with plasma-treated PE separators showed improved charge–discharge capability with lower interfacial resistance and stable cycling performance. This result demonstrates a high potential of the plasma-treated PE separator in LIBs.
ISSN:1226-086X
1876-794X
DOI:10.1016/j.jiec.2016.08.021