Study of a novel gel electrolyte based on poly-(methoxy/hexadecyl-poly(ethylene glycol) methacrylate) co-polymer plasticized with 1-butyl-3-methylimidazolium tetrafluoroborate

RSC Advances ◽  
2014 ◽  
Vol 4 (68) ◽  
pp. 36357-36365 ◽  
Author(s):  
Long Wang ◽  
Hua-jun Zhu ◽  
Wei Zhai ◽  
Feng Cai ◽  
Xiao-min Liu ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Ethylene Glycol ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Gel Electrolyte ◽  
Solid Polymer ◽  
Gel Polymer Electrolytes ◽  
Poly Ethylene Glycol ◽  
Glycol Methacrylate ◽  
Poly Ethylene

Compared with traditional liquid electrolytes, solid polymer electrolytes possess higher reliability and safety but lower ionic conductivity, which can be improved by incorporating plasticizers to form gel polymer electrolytes (GPEs).

scholarly journals Lignin‐Based Solid Polymer Electrolytes: Lignin‐Graft‐Poly(ethylene glycol)

2021 ◽  
Vol 42 (3) ◽  
pp. 2170007
Author(s):  
Hailing Liu ◽  
Logan Mulderrig ◽  
Daniel Hallinan ◽  
Hoyong Chung
Keyword(s):  
Ethylene Glycol ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Effect of network homogeneity on mechanical, thermal and electrochemical properties of solid polymer electrolytes prepared by homogeneous 4-arm poly(ethylene glycols)

Soft Matter ◽  
2020 ◽  
Vol 16 (17) ◽  
pp. 4290-4298
Author(s):  
Monami Tosa ◽  
Kei Hashimoto ◽  
Hisashi Kokubo ◽  
Kazuhide Ueno ◽  
Masayoshi Watanabe
Keyword(s):  
Ethylene Glycol ◽  
Electrochemical Properties ◽  
Polymer Electrolytes ◽  
Polymer Network ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Poly Ethylene Glycol ◽  
Ethylene Glycols ◽  
Poly Ethylene

The effect of network inhomogeneity in solid polymer electrolytes on its electrolyte properties was investigated by employing a model polymer network composed of a homogeneous 4-arm poly(ethylene glycol) (tetra-PEG) network and Li salt.

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.

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