Yvonne Kraemer

Mrs. Yvonne Kraemer


Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2016 in Journal of Power Sources
Verified
Journal Article
Closed access
LPLukas Pfaffmann
Lukas Pfaffmann
CBClaudia Birkenmaier
Claudia Birkenmaier
MMMarcus Müller
Marcus Müller
WBWerner Bauer
Werner Bauer
TMTim Mitsch
Tim Mitsch
HEHelmut Ehrenberg
Helmut Ehrenberg

12 March 2015 in Chemistry – A European Journal
Verified
Journal Article
Closed access
PDF file
YKYvonne Kraemer
Yvonne Kraemer
CBClaudia Birkenmaier
Claudia Birkenmaier
JFJulian Feinauer
Julian Feinauer
AHAndreas Hintennach
Andreas Hintennach
CBConrad L. Bender
Conrad L. Bender
Thomas SchleidThomas Schleid
Thomas Schleid

12 June 2014 in Materials
Verified
Journal Article
Open access
PDF file
TMTim Mitsch
Tim Mitsch
YKYvonne Kraemer
Yvonne Kraemer
JFJulian Feinauer
Julian Feinauer
GGGerd Gaiselmann
Gerd Gaiselmann
HMHenning Markötter
Henning Markötter
VSVolker Schmidt
Volker Schmidt
We present an approach for multi-layer preparation to perform microstructure analysis of a Li-ion cell anode active material using synchrotron tomography. All necessary steps, from the disassembly of differently-housed cells (pouch and cylindrical), via selection of interesting layer regions, to the separation of the graphite-compound and current collector, are described in detail. The proposed stacking method improves the efficiency of synchrotron tomography by measuring up to ten layers in parallel, without the loss of image resolution nor quality, resulting in a maximization of acquired data. Additionally, we perform an analysis of the obtained 3D volumes by calculating microstructural characteristics, like porosity, tortuosity and specific surface area. Due to a large amount of measurable layers within one stacked sample, differences between aged and pristine material (e.g., significant differences in tortuosity and specific surface area, while porosity remains constant), as well as the homogeneity of the material within one cell could be recognized.