Characterization of N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl)imide-based polymer electrolytes for high safety lithium batteries
Journal article, 2013
Poly(vinylidene difluoride-co-hexafluoropropylene) (PVdF-HFP) membrane was prepared by electrospinning. The membranes served as host matrices for the preparation of ionic liquid-based polymer electrolytes (ILPEs) by activation with non-volatile, highly thermally stable, and safe room temperature ionic liquid (RTIL) electrolytes; N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl)imide (Py14TFSI) complexed with 1 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). In this work, the first combination of electrospun PVdF-HFP fiber polymer host and pyrrolidinium-based ionic electrolyte was employed for highly stable lithium batteries. The ILPE exhibited low Li+-TFSI coordination, low crystallinity, high thermal stability, high electrochemical stability, and high ionic conductivity with a maximum of 1.1 x 10(-4) S cm(-1) at 0 degrees C. The ILPE exhibited good compatibility with a LiFePO4 electrode on storage and good charge-discharge performance in Li/ILPE/LiFePO4!
diffusion
electrospun
challenges
membrane
Polymer electrolyte
Poly(vinylidene difluoride-co-hexafluoropropylene)
stability
liquid
Electrospinning
Lithium batteries
conductivity
N-butyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl)-imide
li-ion batteries
poly(ethylene oxide)
lifepo4 cathode
Author
Jae-Kwang Kim
Chalmers, Applied Physics, Condensed Matter Physics
L. Niedzicki
Politechnika Warszawska
Johan Scheers
Chalmers, Applied Physics, Condensed Matter Physics
C. R. Shin
Gyeongsang National University
D. H. Lim
Gyeongsang National University
W. Wieczorek
Politechnika Warszawska
Patrik Johansson
Chalmers, Applied Physics, Condensed Matter Physics
J. H. Ahn
Gyeongsang National University
Aleksandar Matic
Chalmers, Applied Physics, Condensed Matter Physics
Per Jacobsson
Chalmers, Applied Physics, Condensed Matter Physics
Journal of Power Sources
0378-7753 (ISSN)
Vol. 224 15 Feb. 2013 93-98Areas of Advance
Transport
Energy
Materials Science
Subject Categories (SSIF 2011)
Condensed Matter Physics
DOI
10.1016/j.jpowsour.2012.09.029