Thin Free-Standing Sulfide/Halide Bilayer Electrolytes for Solid-State Batteries Using Slurry Processing and Lamination

Younggyu Kim; Carlos Juarez-Yescas; Daniel W. Liao; Manoj K. Jangid; Prerna Joshi; Heng Yang; Beniamin Zahiri; Paul V. Braun; Neil P. Dasgupta

doi:10.1021/acsenergylett.4c00092

journal article·2024-04-12

Thin Free-Standing Sulfide/Halide Bilayer Electrolytes for Solid-State Batteries Using Slurry Processing and Lamination

Younggyu Kim, Carlos Juarez-Yescas, Daniel W. Liao, Manoj K. Jangid, Prerna Joshi, Heng Yang, Beniamin Zahiri, Paul V. Braun, Neil P. Dasgupta

ACS Energy Letters· Volume 9· Issue 4

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Source abstract

Abstract

Thin-film solid electrolytes with wide electrochemical stability windows are required to develop solid-state lithium (Li) metal batteries with high energy densities. In this work, free-standing Li 3 InCl 6 (30 μm)|Li 6 PS 5 Cl (30 μm) bilayer thin films are prepared by slurry casting, drying, and lamination. This combination of solid electrolytes is stable at both the cathode interface (high voltages) and anode interface (low voltages). The bilayer thin films exhibit >10× lower area-specific resistance than thick (∼1 mm) pellets fabricated by traditional powder pressing. The free-standing bilayer electrolytes are laminated onto electrodeposited LiCoO 2 cathodes. Subsequently a Li–In anode is laminated on top of the stack, and stable cycling of all-solid-state batteries is demonstrated. Because of reduced ohmic losses, cells fabricated with thin-film electrolytes exhibit lower cell polarization and improved rate capability compared with cells with a traditional pellet geometry. This study offers a general strategy to fabricate free-standing bilayer thin-film solid electrolytes for high-energy-density solid-state batteries.

Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage Composites

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States

Department of Chemistry, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States

Materials Research Laboratory, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States

Xerion Advanced Battery Corporation, Kettering, Ohio 45420, United States

Department of Materials Science and Engineering, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States

Beckman Institute for Advanced Science and Technology, University of Illinois Urbana−Champaign, Urbana, Illinois 61801, United States

Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States

Funding

University of Michigan · Defense Advanced Research Projects Agency · Division of Graduate Education

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