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.

war mjs

self-nucleation

p3902

v107

fluorophilicity

Physics

v29

pan

Chemistry

1990

conductivity

transport

1985

mixtures

war mjs

journal of the american chemical society

p3881

inorganic chemistry

semiempirical methods

ion batteries

membranes

in-salt

Författare

E. Cznotka

Universität Münster

Steffen Jeschke

Chalmers, Fysik, Kondenserade materiens fysik

M. Grunebaum

Universität Münster

H. D. Wiemhofer

Universität Münster

Solid State Ionics

0167-2738 (ISSN)

Vol. 292 45-51

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1016/j.ssi.2016.05.007