Toward High-Capacity Li–S Solid-State Batteries: The Role of Partial Ionic Transport in the Catholyte
Source abstract
Abstract
To address the challenges of tortuous partial ionic transport and chemomechanical failure due to the large volumetric changes of sulfur during all-solid-state battery cycling, we evaluate a hybrid electrolyte composed of the lithium chloride argyrodite Li 6 PS 5 Cl (LPSCl) and an ionic liquid-based lithium liquid electrolyte (ILE) in the cathode composite of Li–S half-cells. We confirm the stability of the LPSCl/ILE interface by coupling Raman and impedance spectroscopy measurements. Charge–discharge curves show a capacity improvement for the hybrid cells (1364 ± 151 mAh·g –1 ), compared to 904 ± 186 mAh·g –1 for pristine cells. Transport measurements quantify an increase in the partial ionic conductivity of proxy cathode layers from 0.2 to 0.4 mS·cm –1 in hybrid cells. Taken together, the use of the ILE increases the partial ionic transport and access to sulfur which results in higher and more stable discharge capacities.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
MEET Battery Research Center, Institute of Physical Chemistry, University of Münster, Corrensstraße 46, 48149, Münster, Germany
International Graduate School for Battery Chemistry, Characterization, Analysis, Recycling and Application (BACCARA), University of Münster, Corrensstraße 40, 48149 Münster, Germany
Insitute of Inorganic and Analytical Chemistry, University of Münster, Corrensstraße 28/30, 48149 Münster, Germany
Chair of Electrochemistry, University of Bayreuth and Bavarian Center for Battery Technology (BayBatt), Universitätsstrasse 30, 95447 Bayreuth, Germany
Funding
Deutsche Forschungsgemeinschaft · Ministerium f?r Kultur und Wissenschaft des Landes Nordrhein-Westfalen · Helmholtz Association
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