Cathode Interface Compatibility of Amorphous LiMn2O4 (LMO) and Li7La3Zr2O12 (LLZO) Characterized with Thin-Film Solid-State Electrochemical Cells

Delluva, Alexander A.; Dudoff, Jessica; Teeter, Glenn; Holewinski, Adam

doi:10.1021/acsami.0c03519

Title: Cathode Interface Compatibility of Amorphous LiMn₂O₄ (LMO) and Li₇La₃Zr₂O₁₂ (LLZO) Characterized with Thin-Film Solid-State Electrochemical Cells

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Abstract

Solid-state lithium-ion batteries are a hopeful successor to traditional Li-ion cells that use liquid electrolytes. While a growing body of work has characterized the interfaces between various solid electrolytes and the lithium metal, interfaces with common cathode intercalation compounds are comparatively less understood. In this contribution, the influence of polarization and temperature on interfacial stability between LiMn₂O₄ (LMO) and Li₇La₃Zr₂O₁₂ (LLZO) are investigated. Sputtered thin-film LMO electrodes are utilized to permit high-capacity cycling while retaining a large ratio of interfacial area to electrode bulk. Electrochemical impedance spectroscopy (EIS) is compared across a set of full (LMO|LLZO|Li) and symmetric (LMO|LLZO|LMO, Li|LLZO|Li, and Au|LLZO|Au) cells to delineate impedance features that are specific to the evolution of the cathode interface. Furthermore, additional X-ray photoelectron spectroscopy (XPS) provides evidence of a limited interfacial reaction between LMO and LLZO that coincides with an increase in the impedance of the LMO–LLZO interface.

Authors:

Delluva, Alexander A. ^[1]; Dudoff, Jessica ^[1]; Teeter, Glenn ^[2];

^[1]

Univ. of Colorado, Boulder, CO (United States)
National Renewable Energy Lab. (NREL), Golden, CO (United States)

Publication Date:: Tue May 05 00:00:00 EDT 2020

Research Org.:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office; National Science Foundation (NSF)

OSTI Identifier:: 1659868

Report Number(s):: NREL/JA-5K00-76250
Journal ID: ISSN 1944-8244; MainId:6927;UUID:d0d4b3a3-3b5b-ea11-9c31-ac162d87dfe5;MainAdminID:13537

Grant/Contract Number:: AC36-08GO28308; CBET-1806059

Resource Type:: Accepted Manuscript

Journal Name:: ACS Applied Materials and Interfaces

Additional Journal Information:: Journal Volume: 12; Journal Issue: 22; Journal ID: ISSN 1944-8244

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; cathodic interface; garnet electrolyte; impedance spectroscopy; liquid electrolytes; lithium-ion battery; manganese spinel; solid interface; solid-state electrolyte

Citation Formats


                    Delluva, Alexander A., Dudoff, Jessica, Teeter, Glenn, and Holewinski, Adam. Cathode Interface Compatibility of Amorphous LiMn2O4 (LMO) and Li7La3Zr2O12 (LLZO) Characterized with Thin-Film Solid-State Electrochemical Cells.  United States: N. p., 2020. 
Web.  doi:10.1021/acsami.0c03519.

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                    Delluva, Alexander A., Dudoff, Jessica, Teeter, Glenn, & Holewinski, Adam. Cathode Interface Compatibility of Amorphous LiMn2O4 (LMO) and Li7La3Zr2O12 (LLZO) Characterized with Thin-Film Solid-State Electrochemical Cells.  United States.  https://doi.org/10.1021/acsami.0c03519

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                    Delluva, Alexander A., Dudoff, Jessica, Teeter, Glenn, and Holewinski, Adam. Tue .  
"Cathode Interface Compatibility of Amorphous LiMn2O4 (LMO) and Li7La3Zr2O12 (LLZO) Characterized with Thin-Film Solid-State Electrochemical Cells".  United States.  https://doi.org/10.1021/acsami.0c03519.  https://www.osti.gov/servlets/purl/1659868.

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@article{osti_1659868,

  title        = {Cathode Interface Compatibility of Amorphous LiMn2O4 (LMO) and Li7La3Zr2O12 (LLZO) Characterized with Thin-Film Solid-State Electrochemical Cells},

  author       = {Delluva, Alexander A. and Dudoff, Jessica and Teeter, Glenn and Holewinski, Adam},

  abstractNote = {Solid-state lithium-ion batteries are a hopeful successor to traditional Li-ion cells that use liquid electrolytes. While a growing body of work has characterized the interfaces between various solid electrolytes and the lithium metal, interfaces with common cathode intercalation compounds are comparatively less understood. In this contribution, the influence of polarization and temperature on interfacial stability between LiMn2O4 (LMO) and Li7La3Zr2O12 (LLZO) are investigated. Sputtered thin-film LMO electrodes are utilized to permit high-capacity cycling while retaining a large ratio of interfacial area to electrode bulk. Electrochemical impedance spectroscopy (EIS) is compared across a set of full (LMO|LLZO|Li) and symmetric (LMO|LLZO|LMO, Li|LLZO|Li, and Au|LLZO|Au) cells to delineate impedance features that are specific to the evolution of the cathode interface. Furthermore, additional X-ray photoelectron spectroscopy (XPS) provides evidence of a limited interfacial reaction between LMO and LLZO that coincides with an increase in the impedance of the LMO–LLZO interface.},

  doi          = {10.1021/acsami.0c03519},

  journal      = {ACS Applied Materials and Interfaces},

  number       = 22,

  volume       = 12,

  place        = {United States},

  year         = {Tue May 05 00:00:00 EDT 2020},

  month        = {Tue May 05 00:00:00 EDT 2020}

}

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Title: Cathode Interface Compatibility of Amorphous LiMn2O4 (LMO) and Li7La3Zr2O12 (LLZO) Characterized with Thin-Film Solid-State Electrochemical Cells

Abstract

Citation Formats

Title: Cathode Interface Compatibility of Amorphous LiMn₂O₄ (LMO) and Li₇La₃Zr₂O₁₂ (LLZO) Characterized with Thin-Film Solid-State Electrochemical Cells