TY  - JOUR
A1  - Sun, Fu
A1  - Dong, Kang
A1  - Osenberg, Markus
A1  - Hilger, Andre
A1  - Risse, Sebastian
A1  - Lu, Yan
A1  - Kamm, Paul H.
A1  - Klaus, Manuela
A1  - Markoetter, Henning
A1  - Garcia-Moreno, Francisco
A1  - Arlt, Tobias
A1  - Manke, Ingo
T1  - Visualizing the morphological and compositional evolution of the interface of InLi-anode|thio-LISION electrolyte in an all-solid-state Li-S cell by in operando synchrotron X-ray tomography and energy dispersive diffraction
JF  - Journal of materials chemistry : A, Materials for energy and sustainability
N2  - Dynamic and direct visualization of interfacial evolution is helpful in gaining fundamental knowledge of all-solid-state-lithium battery working/degradation mechanisms and clarifying future research directions for constructing next-generation batteries. Herein, in situ and in operando synchrotron X-ray tomography and energy dispersive diffraction were simultaneously employed to record the morphological and compositional evolution of the interface of InLi-anode|sulfide-solid-electrolyte during battery cycling. Compelling morphological evidence of interfacial degradation during all-solid-state-lithium battery operation has been directly visualized by tomographic measurement. The accompanying energy dispersive diffraction results agree well with the observed morphological deterioration and the recorded electrochemical performance. It is concluded from the current investigation that a fundamental understanding of the phenomena occurring at the solid-solid electrode|electrolyte interface during all-solid-state-lithium battery cycling is critical for future progress in cell performance improvement and may determine its final commercial viability.
Y1  - 2018
U6  - https://doi.org/10.1039/c8ta08821g
SN  - 2050-7488
SN  - 2050-7496
VL  - 6
IS  - 45
SP  - 22489
EP  - 22496
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Shashev, Yury
A1  - Kupsch, Andreas
A1  - Lange, Axel
A1  - Evsevleev, Sergei
A1  - Müller, Bernd R.
A1  - Osenberg, Markus
A1  - Manke, Ingo
A1  - Hentschel, Manfred P.
A1  - Bruno, Giovanni
T1  - Optimizing the visibility of X-ray phase grating interferometry
JF  - Materials testing : Materialprüfung ; materials and components, technology and application
N2  - The performance of grating interferometers coming up now for imaging interfaces within materials depends on the efficiency (visibility) of their main component, namely the phase grating. Therefore, experiments with monochromatic synchrotron radiation and corresponding simulations are carried out. The visibility of a phase grating is optimized by different photon energies, varying detector to grating distances and continuous rotation of the phase grating about the grid lines. Such kind of rotation changes the projected grating shapes, and thereby the distribution profiles of phase shifts. This yields higher visibilities than derived from ideal rectangular shapes. By continuous grating rotation and variation of the propagation distance, we achieve 2D visibility maps. Such maps provide the visibility for a certain combination of grating orientation and detector position. Optimum visibilities occur at considerably smaller distances than in the standard setup.
KW  - X-ray imaging
KW  - grating interferometry
KW  - Talbot-Lau interferometer
KW  - X-ray refraction
KW  - X-ray phase contrast
Y1  - 2017
U6  - https://doi.org/10.3139/120.111097
SN  - 0025-5300
VL  - 59
SP  - 974
EP  - 980
PB  - Hanser
CY  - München
ER  - 
TY  - JOUR
A1  - Sun, Fu
A1  - Osenberg, Markus
A1  - Dong, Kang
A1  - Zhou, Dong
A1  - Hilger, Andre
A1  - Jafta, Charl J.
A1  - Risse, Sebastian
A1  - Lu, Yan
A1  - Markoetter, Henning
A1  - Manke, Ingo
T1  - Correlating Morphological Evolution of Li Electrodes with Degrading Electrochemical Performance of Li/LiCoO2 and Li/S Battery Systems
BT  - Investigated by Synchrotron X-ray Phase Contrast Tomography
JF  - ACS energy letters / American Chemical Society
N2  - Efficient Li utilization is generally considered to be a prerequisite for developing next-generation energy storage systems (ESSs). However, uncontrolled growth of Li microstructures (LmSs) during electrochemical cycling has prevented its practical commercialization. Herein, we attempt to understand the correlation of morphological evolution of Li electrodes with degrading electrochemical performances of Li/LiCoO2 and Li/S systems by synchrotron X-ray phase contrast tomography technique. It was found that the continuous transformation of the initial dense Li bulk to a porous lithium interface (PL1) structure intimately correlates with the gradually degrading overall cell performance of these two systems. Additionally, the formation mechanism of the PLI and its correlation with previously reported inwardly growing LmS and the lithium-reacted region have been intensively discussed. The information that we gain herein is complementary to previous investigations and may provide general insights into understanding of degradation mechanisms of Li metal anodes and also provide highly needed guidelines for effective design of reliable next-generation Li metal-based ESSs.
Y1  - 2018
U6  - https://doi.org/10.1021/acsenergylett.7b01254
SN  - 2380-8195
VL  - 3
IS  - 2
SP  - 356
EP  - 365
PB  - American Chemical Society
CY  - Washington
ER  -