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7746669 
Journal Article 
Viscosity properties of electrolytes in propylene carbonate based lithium battery electrolyte solutions 
Wang, JJ; Zhao, Y; Zhuo, KL; Lin, RS 
2003 
1 
Zeitschrift fur Physikalische Chemie
ISSN: 0942-9352 
Oldenbourg Wissenschaftsverlag GmbH 
MUNICH 
217 
6 
637-652 
English 
WOS:000183487700002 
Viscosities of LiClO4 and LiBr have been measured in solvent mixtures of propylene carbonate (PC) with dimethylformamide (DMF), tetrahydrofuran (THF), acetonitrile (AN) and methyl formate (MF) at 298.15 K. The dependence of viscosity on the composition of the mixed solvents was fitted with an equation without adjustable parameter. Viscosity B-coefficients for lithium salts and the corresponding activation free energies (Δμ0,≠) for viscous flow have been evaluated. At the same time, viscosity B-coefficients were predicted by the dielectric friction theory. The unsuccessful prediction of the composition dependence of the B-coefficients indicates that improvements will be necessary on the theory with taking account of the short-range interaction and molecular nature of the solvents. Furthermore, solute-solvent interactions in these mixed solvents are discussed in terms of the B-coefficients and activation parameters. 
viscosity; lithium battery electrolyte solutions; lithium salts; propylene carbonate; solvent mixtures