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NASA NTRS · 20230007771

Improving Cell-Level Specific Energy for All-Solid-State Lithium Sulfur Batteries

Yi Lin·Donald A Dornbusch·Rocco P Viggiano
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Abstract

All-solid-state lithium-sulfur (Li-S) batteries are considered as one of the top choices toward 500 Wh/kg of specific energy, a key metric for an energy storage system to enable large regional electric aircrafts. Many obstacles remain, such as S utilization in the cathode, cyclability regarding both cathode and anode as well as electrode-electrolyte interfaces, and effective means to increase the S content within the all-solid-state cell architecture. The latter is directly related to cell-level specific energy when considering the weights of all battery cell components. In this presentation, we discuss the efforts in both cathode optimization and cell-level improvement toward increasing the overall specific energy. Various strategies for improving S utilization and reducing the solid electrolyte layer thickness will be presented.

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Solid state batteriesLithium-sulfur batteriesElectric aircraftHoley grapheneEnergy storage materials

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Yi Lin, Donald A Dornbusch, Rocco P Viggiano. Improving Cell-Level Specific Energy for All-Solid-State Lithium Sulfur Batteries. https://ntrs.nasa.gov/citations/20230007771

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