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DOE OSTI · 1865324

Lithium nitride coatings deposited by magnetron sputtering on sulfide electrolytes for solid-state batteries

Li, Zhifei·Santhanagopalan, Shriram·Zakutayev, Andriy
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Abstract

Lithium nitrides have been considered as promising candidates for interfacial layers in solid-state lithium batteries (SSBs). Previously reported lithium nitride (Li 3 N) coatings were mostly prepared by the reaction between lithium metal and nitrogen gas, which makes it challenging for their thickness control and integration in SSBs. In this study, we prepare Li 3 N via magnetron sputtering for the first time, and apply the resulting coating directly on sulfide solid-state electrolyte. A much smaller impedance increase associated with improved cycling performance is observed in lithium metal symmetric cell. These results demonstrate the feasibility of depositing Li 3 N via magnetron sputtering and its application in SSBs.

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25 ENERGY STORAGEamorphouscoatingenergy storageinterfacenitridesputtering

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Li, Zhifei, Santhanagopalan, Shriram, Zakutayev, Andriy. 2022-04-13. Lithium nitride coatings deposited by magnetron sputtering on sulfide electrolytes for solid-state batteries. https://doi.org/10.1557/s43579-022-00183-8

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