Suchen
Study of Graphite Cycling in Sulfide Solid Electrolytes
Nowadays, most of the commercial Li-ion batteries employ graphite as the active material in negative electrodes. In the race for the next-generation Li-ion batteries, tremendous research efforts in academia and industry are carried out to replace the current flammable liquid electrolyte with a solid electrolyte, which could improve both, the batteries safety and energy density. Our study investigates two different sulfide-based solid electrolytes, 0.75Li2S-0.25P2S5 (LPS) and 0.3LiI-0.7(0.75Li2S-0.25P2S5), in combination with graphite and discloses the stability of the graphite-solid electrolyte interface. Optimizing the electrode morphology is the key to enhance the rate capability of all-solid-state cells. Using the special tender X-ray range allows chemical characterization of sulfur, phosphor and iodine.
Publications of the In-situ X-ray Spectroscopy group
Valence, exchange interaction, and location of Mn ions in polycrystalline MnxGa_(1-x)N (x < = 0.04)
Furrer A, Krämer KW, Podlesnyak A, Pomjakushin V, Sheptyakov D, Safonova OV
PHYSICAL REVIEW B
97,
140102
(2018).
DOI: 10.1103/PhysRevB.97.140102
PHOENIX Publications
The publications listed below are based on data taken at the PHOENIX beamline or are results of the research of the team working at the PHOENIX beamline.