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In-Situ X-Ray Diffraction (XRD) and electrochemical characterization of cathodes for Li-sulfur batteries
Natalia Cañas1,2, Kei Hirose1,2, Norbert Wagner1, Seniz Sörgel1 and K. Andreas Friedrich1,2 1 Institute of Technical Thermodynamics, Electrochemical Energy Technology, German Aerospace Center
2 Institute for Thermodynamic and Thermal Engineering, University of Stuttgart, Germany
Correspondence to natalia.canas@dlr.de
Li2S [2 2 2] S8 [2 2 2]
Li2S [2 2 2]
S8 [3 1 1]
Discharge
Discharge Charge
Charge
Equivalent electric circuit
Model Chemical and physical cause
R0 Ohmic resistance
RQ1 Anode charge transfer
RQ2
Cathode process: charge transfer of sulfur
intermediates
RQ3 Cathode process: reaction and formation of S8 and Li2S
RQ4 Diffusion
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