Electrochemistry and Electric Conductivity
Staff
Facilities and Research Interests
- Synthesis and electrochemical characterization of novel thermally and
electrochemically stable electrolytes, including non-aqueous electrolytes, low
temperature molten salts (ionic liquids), polymer electrolytes, and gel
electrolytes
- Measurement and interpretation of temperature dependence of transport
properties (viscosity, conductivity) of ionic conductors, including non-aqueous
electrolytes, low temperature molten salts (ionic liquids), polymer
electrolytes, and gel electrolytes
- Investigation of phase diagrams of electrolyte solutions
- Development of novel reference electrodes
- Determination of ion-ion (association) and ion solvent interaction
(solvation) in a large temperature range (-55°C to +135°C)
- Measurement of density of electrolyte solutions in a large temperature
range (-55°C to +135°C) from highly dilute to concentrated solutions
up to saturation
- Measurement of dielectric permittivity of solvents in a large temperature
range (-55°C to +135°C)
- Investigation of specific solvation and displacive solvation reactions
- Investigation of ion-pair and triple-ion formation
- Investigation of ion transference numbers (in preparation)
- Investigation of kinetics of hydrolysis reactions of novel anions
- Applied research in the fields high energy density batteries (lithium,
lithium-ion) and double layer capacitors
- Measurement of mutual diffusion coefficients of electrolyte solutions at
25°C
- Measurement of mutual diffusion coefficients of solvents 25°C
- Semi-empirical quantum mechanical calculations and thermodynamics of
ion-solvent-clusters in the gas phase
Available intrumentation:
- 2 viscometric measuring equipments for the determination of viscosity of
solvents and solutions
- 3 conductivity measuring equipments for the determination of conductivity
of electrolyte solutions and low temperature molten salts
- 2 density measuring equipments for the determination of density of
electrolyte solutions and low temperature molten salts
- 3 precise thermostating equipments with baths for various methods
- Glove box for highly pure nitrogen atmosphere, manufacturer: Mecaplex,
- Glove box for highly pure argon atmosphere with titanium sponge nitrogen
removal for experiments with lithium, manufacturer: MBRAUN
- Electrochemical equipment IM5d and IM6 (manufacturer: Zahner) for the
following experiments:
- Studies of the cycleability of lithium at lithium and carbon electrodes
- Determination of the voltage window of novel electrolytes
- Determination of impurities
- Impedance spectroscopic studies of electrodes and processes
- Determination of the lithium ion transference number
- Testing system for cycling batteries and supercapacitors (manufacturer
BaSyTec)
- Measuring equipment for the determination of mutual diffusion coefficients
with the help of the TAYLOR-dispersion techique
- Equipment for the determination of phase diagrams of electrolyte solutions
(Manufacturer ASL)
Current Projects
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