M. Holzapfel
Paul Scherrer Institute
8 Papers
M. Holzapfel is an academic researcher from Paul Scherrer Institute. The author has contributed to research in topics: Graphite & Lithium battery. The author has an hindex of 8, co-authored 8 publications.
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Papers
Study of styrene butadiene rubber and sodium methyl cellulose as binder for negative electrodes in lithium-ion batteries
TL;DR: In this article, graphite and nano-silicon-based negative electrodes in lithium-ion batteries with low binder content were evaluated, and the effectiveness of styrene butadiene rubber (SBR) and various types of cellulose containing electrodes were compared to standard electrodes containing PVdF as binder.
496
Stabilisation of lithiated graphite in an electrolyte based on ionic liquids: an electrochemical and scanning electron microscopy study
M. Holzapfel,Carsten Jost,Anna Dr. Prodi-Schwab,Frank Krumeich,A. Würsig,Hilmi Buqa,Petr Novák +6 more
TL;DR: In this paper, an ammonium-containing ionic liquid (methyltrioctylammonium-bis(trifluoromethylsulfonyl)-imide, MTO-TFSI) is shown to permit the cycling of both, graphite and lithium cobalt oxide when VC is used as additive in small amounts, but at slightly elevated temperatures.
161
In situ X-ray diffraction of the intercalation of (C2H5)4N+ and BF4− into graphite from acetonitrile and propylene carbonate based supercapacitor electrolytes
Patrick Ruch,M. Hahn,Fabio Rosciano,M. Holzapfel,Hermann Kaiser,Werner Scheifele,B. Schmitt,Petr Novák,Rüdiger Kötz,Alexander Wokaun +9 more
TL;DR: In this article, the intercalation of (C 2 H 5 ) 4 N + and BF 4 − from acetonitrile (AN) and propylene carbonate (PC) solutions into bound graphite electrodes during cyclic voltammetry was investigated by in situ X-ray diffraction (XRD) using synchrotron radiation.
100
Oxygen, hydrogen, ethylene and CO2 development in lithium-ion batteries
TL;DR: In this article, the influence of different parameters on the CO2 evolution in lithium-ion batteries was shown up, including high temperatures and cell voltages, while the addition of vinylene carbonate (VC) decreases it.
100
Advanced in situ characterization methods applied to carbonaceous materials
Petr Novák,Dietrich Goers,Laurence J. Hardwick,M. Holzapfel,Werner Scheifele,J. Ufheil,A. Würsig +6 more
TL;DR: In this article, an overview of the progress recently achieved in our laboratory in the development and application of four in situ methods; namely X-ray diffraction (both synchrotron-based and standard), Raman microscopy, differential electrochemical mass spectrometry (DEMS), and infrared spectroscopy.
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