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Local Li Coordination and Ionic Transport in Methacrylate‐Based Gel Polymer Electrolytes
Author(s) -
Voigt Nadine,
Isken Philipp,
LexBalducci Alexandra,
van Wüllen Leo
Publication year - 2013
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201300347
Subject(s) - ethylene carbonate , molecule , chemistry , polymer , ionic liquid , methacrylate , electrolyte , nuclear magnetic resonance spectroscopy , solid state nuclear magnetic resonance , coordination complex , ionic bonding , dimethyl carbonate , polymer chemistry , inorganic chemistry , copolymer , ion , organic chemistry , catalysis , nuclear magnetic resonance , physics , electrode , metal
The local Li cation coordination motifs and the interactions between the hosting methacrylate‐based polymer membrane and the liquid electrolyte [1 M LiPF 6 in ethylene carbonate (EC)/dimethyl carbonate (DMC)] are studied by employing liquid and solid‐state NMR spectroscopy. At low temperatures, two different coordination modes for Li cations are identified with the help of dipolar‐based solid‐state NMR techniques, one of which is the exclusive coordination by DMC molecules, while the other is a co‐coordination by the polymer and DMC molecules. At room temperature, Li cations are found to be extremely mobile, coordinated by EC and DMC molecules as well as the copolymer, as found by liquid‐state NMR spectroscopy.