Highly-fluorous pyrazolide-based lithium salt in PVDF-HFP as solid polymer electrolyte
Artikel i vetenskaplig tidskrift, 2016

For the first time, the concept of fluorophilicity f(i) is adapted to the development of a novel solid polymer electrolyte (SPE) by computationally evaluating a new class of lithium salts, the perfluoroalkylated pyrazolides. An SPE consisting solely of poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) and different concentrations of highly-fluorous lithium [5-(perfluorobutyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl] trifluoroborate (LiPFAPB14) is reported. Membranes with a salt concentration up to 80 wt.% are prepared and are investigated by 3D laser scanning confocal microscopy, scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) concerning the correlation between the LiPFAPB14 salt concentrations with the miscibility in PVDF-HFP. Membrane performances as SPE are evaluated by impedance spectroscopy revealing ionic conductivities of 1.4 x 10(-4) S cm(-1) at 90 degrees C with 80 wt.% LiPFAPB14.

conductivity

semiempirical methods

transport

p3881

v29

1990

inorganic chemistry

v107

self-nucleation

p3902

war mjs

Physics

journal of the american chemical society

pan

membranes

ion batteries

in-salt

mixtures

1985

Chemistry

fluorophilicity

war mjs

Författare

E. Cznotka

Westfalische Wilhelms-Universitat Munster

Steffen Jeschke

Chalmers, Fysik, Kondenserade materiens fysik

M. Grunebaum

Westfalische Wilhelms-Universitat Munster

H. D. Wiemhofer

Westfalische Wilhelms-Universitat Munster

Solid State Ionics

0167-2738 (ISSN)

Vol. 292 45-51

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1016/j.ssi.2016.05.007