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
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.
|Journal series||The Journal of Physical Chemistry Part C: Nanomaterials, Interfaces and Hard Matter, ISSN 1932-7447, e-ISSN 1932-7455|
|Publication size in sheets||0.5|
|ASJC Classification||; ; ;|
|Score||= 140.0, 03-09-2020, ArticleFromJournal|
|Publication indicators||= 0; : 2018 = 1.083; : 2018 = 4.309 (2) - 2018=4.537 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.