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Αρχική    Shear induced tuning of mechanical properties and ionic conductivity of composite polymer electrolytes  

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Τίτλος Shear induced tuning of mechanical properties and ionic conductivity of composite polymer electrolytes
Συγγραφέας Μαχάς, Αθανάσιος
Σύμβουλος διατριβής Πετεκίδης, Γεώργιος
Γλυνός, Εμμανουήλ
Περίληψη 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.
Γλώσσα Αγγλικά
Ημερομηνία έκδοσης 2023-07-28
Συλλογή   Σχολή/Τμήμα--Σχολή Θετικών και Τεχνολογικών Επιστημών--Τμήμα Φυσικής--Πτυχιακές εργασίες
  Τύπος Εργασίας--Πτυχιακές εργασίες
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