Ion-conductive polymer electrolytes based on poly(ethylene carbonate) and its derivatives

2016 ◽  
Vol 49 (3) ◽  
pp. 291-299 ◽  
Author(s):  
Yoichi Tominaga
Keyword(s):  
Polymer Electrolytes ◽  
Ethylene Carbonate ◽  
Conductive Polymer ◽  
Poly Ethylene

Dynamic Transport in Li-Conductive Polymer Electrolytes Plasticized with Poly(ethylene glycol)-Borate/Aluminate Ester

ChemPhysChem ◽  
2009 ◽  
Vol 10 (11) ◽  
pp. 1911-1915 ◽  
Author(s):  
Fuminari Kaneko ◽  
Shinta Wada ◽  
Masanobu Nakayama ◽  
Masataka Wakihara ◽  
Shigeki Kuroki
Keyword(s):  
Ethylene Glycol ◽  
Polymer Electrolytes ◽  
Conductive Polymer ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Solid Polymer Electrolytes from Crosslinked PEG and Dilithium N,N'-Bis(trifluoromethanesulfonyl)perfluoroalkane-1,ω-disulfonamide and Lithium Bis(trifluoromethanesulfonyl)imide Salts

2008 ◽  
Vol 73 (12) ◽  
pp. 1777-1798 ◽  
Author(s):  
Olt E. Geiculescu ◽  
Rama V. Rajagopal ◽  
Emilia C. Mladin ◽  
Stephen E. Creager ◽  
Darryl D. Desmarteau
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Minimum Energy ◽  
Ionic Conductivities ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Segmental Motion ◽  
Concentrated Electrolytes ◽  
Two Factors ◽  
Poly Ethylene

The present work consists of a series of studies with regard to the structure and charge transport in solid polymer electrolytes (SPE) prepared using various new bis(trifluoromethanesulfonyl)imide (TFSI)-based dianionic dilithium salts in crosslinked low-molecular-weight poly(ethylene glycol). Some of the thermal properties (glass transition temperature, differential molar heat capacity) and ionic conductivities were determined for both diluted (EO/Li = 30:1) and concentrated (EO/Li = 10:1) SPEs. Trends in ionic conductivity of the new SPEs with respect to anion structure revealed that while for the dilute electrolytes ionic conductivity is generally rising with increased length of the perfluoroalkylene linking group in the dianions, for the concentrated electrolytes the trend is reversed with respect to dianion length. This behavior could be the result of a combination of two factors: on one hand a decrease in dianion basicity that results in diminished ion pairing and an enhancement in the number of charge carriers with increasing fluorine anion content, thereby increasing ionic conductivity while on the other hand the increasing anion size and concentration produce an increase in the friction/entanglements of the polymeric segments which lowers even more the reduced segmental motion of the crosslinked polymer and decrease the dianion contribution to the overall ionic conductivity. DFT modeling of the same TFSI-based dianionic dilithium salts reveals that the reason for the trend observed is due to the variation in ion dissociation enthalpy, derived from minimum-energy structures, with respect to perfluoroalkylene chain length.

scholarly journals Gel Polymer Electrolytes Based on Cross-Linked Poly(ethylene glycol) Diacrylate for Calcium-Ion Conduction

ACS Omega ◽  
2021 ◽  
Author(s):  
Saeid Biria ◽  
Shreyas Pathreeker ◽  
Francielli S. Genier ◽  
Fu-Hao Chen ◽  
Hansheng Li ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Polymer Electrolytes ◽  
Calcium Ion ◽  
Gel Polymer Electrolytes ◽  
Poly Ethylene Glycol ◽  
Ion Conduction ◽  
Glycol Diacrylate ◽  
Poly Ethylene

scholarly journals Realizing poly(ethylene oxide) as a polymer for solid electrolytes in high voltage lithium batteries via simple modification of the cell setup

2021 ◽  
Author(s):  
Lukas Stolz ◽  
Gerrit Homann ◽  
Martin Winter ◽  
Johannes Kasnatscheew
Keyword(s):  
Ethylene Oxide ◽  
High Voltage ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Solid Electrolytes ◽  
Simple Modification ◽  
Poly Ethylene Oxide ◽  
Benchmark System ◽  
Short Circuits ◽  
Poly Ethylene

Cell failure of polymer electrolytes is rather the result of short circuits instead of assumed electrolyte oxidation. A spacer with a constant and defined distance can avoid this failure, thus realize a benchmark system for a more systematic R&D.

scholarly journals Synthesis and Use of Zwitterion Bearing Sulfonyl(trifluoromethane sylfonyl)imide Anion as Additive for Polymer Electrolytes

2020 ◽  
Vol 10 (21) ◽  
pp. 7724
Author(s):  
Elisabetta Fedeli ◽  
Andriy Kvasha ◽  
Didier Gigmes ◽  
Trang N. T. Phan
Keyword(s):  
Transition Temperature ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolyte ◽  
Solid Polymer ◽  
Electrolyte Mixtures ◽  
Poly Ethylene Glycol ◽  
Imidazolium Cation ◽  
Ethylene Glycol Dimethyl Ether ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

In order to improve the electrochemical properties of poly(ethylene oxide), a well-known-solid polymer electrolyte, by adding zwitterion molecules, the synthesis of a new zwitterion (ZN) having imidazolium cation and sulfonyl(trifluoromethane sulfonyl)imide anion is investigated. The addition of different amounts of ZN to the mixture of lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) and poly(ethylene glycol)dimethyl ether (PEGDM) of 1000 g mol−1 does not significantly affect the transition temperature of PEGDM but causes a slight decrease in ionic conductivity of the electrolyte mixtures. However, even with the presence of only 0.05 mole fraction of ZN, the anodic stability of LiTFSI/PEGDM based electrolytes is improved to over 4.5 V vs. Li+/Li at 25 °C. This makes the new synthesized zwitterion a promising electrolyte’s additive for high voltage batteries.

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