Authors:

Yaisa Ramirez

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About Paper:

With the success of electric-powered vehicles, the aviation industry aims to start a new era of electric powered aircraft to reduce environmental impact and to improve aircraft economy, specifically on electrical vertical takeoff and landing type aircrafts. Lithium-sulfur (Li-S) batteries paired with solid state electrolytes are a viable option to fulfill the mentioned objective since they characterize for having high specific energy and capacity, high thermal stability, mechanical strength, and non-flammability. However, this type of batteries present challenges due to Li-dendrite and long chain polysulfide formation, which result on reduced long-term electrochemical performance. This study analyzes the optimal composition for a composite polymer electrolyte with high ionic conductivity and effective anion solvation, that can be applied in Li-S batteries. To this aim, an evaluation of composite polymer electrolytes comprising different electrolyte salts together with garnet material nanoparticles will be conducted. Characterization of the electrolyte's ionic conductivity and microstructure will allow the selection of the most suitable composition for further tests on sulfur cathode compatibility and Li-S cell cyclability.

Source:

Purdue University / 2023

Topics:

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Co-authors:

Yaisa Ramirez