Heinz Bülter
University of Oldenburg
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Publication
Featured researches published by Heinz Bülter.
Angewandte Chemie | 2014
Heinz Bülter; Fabian Peters; Julian Schwenzel; Gunther Wittstock
The solid electrolyte interphase (SEI) in lithium-ion batteries separates the highly reductive lithiated graphite from reducible electrolyte components. It is critical for the performance, durability, and safe operation of batteries. In situ imaging of the SEI is demonstrated using the feedback mode of scanning electrochemical microscopy (SECM) with 2,5-di-tert-butyl-1,4-dimethoxy benzene as mediator. The formation of the SEI is indicated by a decrease of the mediator regeneration rate. Prolonged imaging of the same region revealed fluctuation of the passivating properties on time scales between 2 min and 20 h with an inhomogeneous distribution over the sample. The implications of the approach for in situ assessment of local SEI properties on graphite electrodes are discussed with respect to studying the influence of mechanical stress on SEI reliability and the mode of action of electrolyte additives aiming at improving SEI properties.
Journal of The Electrochemical Society | 2015
Heinz Bülter; Fabian Peters; Julian Schwenzel; Gunther Wittstock
Journal of The Electrochemical Society | 2016
Heinz Bülter; Fabian Peters; Julian Schwenzel; Gunther Wittstock
Journal of The Electrochemical Society | 2016
Heinz Bülter; Michael Sternad; Eduardo dos Santos Sardinha; Julia Witt; Carsten Dosche; Martin Wilkening; Gunther Wittstock
Energy technology | 2016
Heinz Bülter; Fabian Peters; Gunther Wittstock
Electrochimica Acta | 2016
Heinz Bülter; Patrick Schwager; Daniela Fenske; Gunther Wittstock
Electrochimica Acta | 2016
Heinz Bülter; Guy Denuault; Stefan Mátéfi-Tempfli; Mária Mátéfi-Tempfli; Carsten Dosche; Gunther Wittstock
Angewandte Chemie | 2014
Heinz Bülter; Fabian Peters; Julian Schwenzel; Gunther Wittstock
Energy technology | 2016
Patrick Schwager; Heinz Bülter; Inka Plettenberg; Gunther Wittstock
ECS Conference on Electrochemical Energy Conversion & Storage with SOFC-XIV (July 26-31, 2015) | 2015
Heinz Bülter; Michael Sternad; Martin Wilkening; Gunther Wittstock