Electrochemical characterization of electrolytes for lithium-ion batteries based on lithium difluoromono(oxalato)borate
By Zugmann, Sandra; Moosbauer, Dominik; Amereller, Marius; Schreiner, Christian; Wudy, Franz; Schmitz, René; Schmitz, Raphael; Isken, Philipp; Dippel, Christian; Müller, Romek; Kunze, Miriam; Lex-Balducci, Alexandra; Winter, Martin & Gores, Heiner Jakob
Published in Journal of Power Sources
NULL
2011
Abstract
The salt lithium difluoromono(oxalato)borate (LiDFOB) showed some promising results for lithium-ion-cells. It was synthesized via a new synthetic route that avoids chloride impurities. Here we report the properties of its solutions (solvent blend ethylene carbonate/diethyl carbonate (3:7, mass ratio), including its conductivity, cationic transference number, hydrolysis, Al-current collector corrosion-protection ability and its cycling performance with some electrode materials. Some Al-corrosion studies were also performed with the help of our recently developed computer controlled impedance scanning electrochemical quartz crystal microbalance (EQCM) that proofed to be a useful tool for battery material investigations.
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