Research

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  Overview

  All our research topics.

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  Ion Correlations in Concentrated Liquid Battery Electrolytes

  By measuring different transport parameters, such as ionic conductivity, Li+ transference number under anion-blocking conditions and salt diffusion coefficient, we characterize the ion correlations of concentrated liquid electrolytes for battery applications.

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  Crystalline and Amorphous Solid Electrolytes

  We work on the synthesis and characterization of new Li+ and Na+ solid electrolytes.

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  Ion and Molecule Transport across the Solid Electrolyte Interphase (SEI)

  The solid electrolyte interphase (SEI) is a passivation layer on the graphite anode of lithium-ion batteries. Ion, molecule and electron transport across the SEI is not well understood up to now. Therefore, we form SEIs on planar model electrodes, and we characterize their morphology and transport properties.

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  Preparation and Characterization of Composite Electrodes

  We fabricate composite electrolytes for conventional lithium ion batteries and for all-solid-state batteries. Their morphology is characterized by using FIB-SEM, while ion transport properties are investigated by means of electrochemical impedance spectroscopy (EIS) and galvanostatic intermittent titration technique (GITT).

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  Characterization of Composite Electrodes for Solid-State Batteries by Electrochemical AFM Techniques

  AFM-based electrochemical techniques are well suited for characterizing the electrochemical properties of materials at the nanoscale level. We are using such techniques for characterizing the electrochemical properties of composite electrodes for solid-state batteries.

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  Characterization of All-Solid-State Batteries

  We study various solid electrolyte systems in combination with common cathode and anode materials to build and electrochemically characterize all-solid-state batteries.