Graduate theses
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Title |
Shear induced tuning of mechanical properties and ionic conductivity of composite polymer electrolytes |
Author
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Μαχάς, Αθανάσιος
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Thesis advisor
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Πετεκίδης, Γεώργιος
Γλυνός, Εμμανουήλ
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Abstract |
he need for better and more sophisticated electrolytes for Li-ion batteries has been
growing tremendously in the last two decades, due to the rapid developments in
electric vehicles that require long lasting and safe batteries. Recent research exam-
ines whether polyelectrolytes from low molecular weight poly ethylene oxide (PEO)
are a viable solution. PEO has inherently great ion conducting properties, yet its
mechanical stability poses an issue. This problem can be addressed with the addi-
tion of nanoparticles that induce gelation. In this work, composite polyelectrolytes
(CPEs) consisting of PEO with Mw = 500 gr/mol, hydrophobic fumed silica par-
ticles and Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) are studied, both
on their rheological and electrochemical response. Also, preshear experiments are
performed on the CPEs in order to further increase their mechanical stability and
confirm that the shear tuning does not compromise the ionic conductivity.
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Language |
English |
Issue date |
2023-07-28 |
Collection
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School/Department--School of Sciences and Engineering--Department of Physics--Graduate theses
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Type of Work--Graduate theses
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Permanent Link |
https://elocus.lib.uoc.gr//dlib/b/b/c/metadata-dlib-1688968711-419202-10306.tkl
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Views |
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