Study of Properties of Solutions Based on Ethylene Carbonate and Poly(ethylene glycol)s with Different Chain Lengths

Marta Kasprzyk-Niedzicka , Aldona Zalewska , Władysław Wieczorek

Abstract

Electrolytes based on new binary solvent mixtures and well-known salts (LiTDI or LiPF6) show no signs of crystallization, even when reaching extremely low temperatures such as-70 °C. This work involves studying mixtures of poly(ethylene glycol)s (both PEG350ME and PEG500DME) with ethylene carbonate. The new electrolytes derived from these mixtures display rather high conductivity values (around 2 mS cm-1) at room temperature. A large influence of oligomer chain lengths and its ending groups was observed when forming noncrystallizing systems. Both thermal and electrochemical studies are presented. Along with a drop in temperature, the lack of crystallization in these systems may prevent the sudden drop in conductivity and sudden changes in the volume of such systems. This may be the answer to various issues that arise in cells which are exposed to low temperatures.

Author Marta Kasprzyk-Niedzicka (FC / CofIC)
Marta Kasprzyk-Niedzicka,,
- Chair Of Inorganic Chemistry
, Aldona Zalewska (FC / CofIC)
Aldona Zalewska,,
- Chair Of Inorganic Chemistry
, Władysław Wieczorek (FC / CofIC)
Władysław Wieczorek,,
- Chair Of Inorganic Chemistry
Journal seriesThe Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter, ISSN 1932-7447, e-ISSN 1932-7455
Issue year2020
Vol124
Pages5046-5052
Publication size in sheets0.5
ASJC Classification1606 Physical and Theoretical Chemistry; 2100 General Energy; 2504 Electronic, Optical and Magnetic Materials; 2508 Surfaces, Coatings and Films
DOIDOI:10.1021/acs.jpcc.9b10655
Languageen angielski
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 03-09-2020, ArticleFromJournal
Publication indicators Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.083; WoS Impact Factor: 2018 = 4.309 (2) - 2018=4.537 (5)
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