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Elucidating Interfacial Stability between Lithium Metal Anode and Li Phosphorus Oxynitride via In Situ Electron Microscopy

Journal Article · · Nano Letters
Li phosphorus oxynitride (LiPON) is one of a very few solid electrolytes that have demonstrated high stability against Li metal and extended cyclability with high Coulombic efficiency for all solid-state batteries (ASSBs). However, theoretical calculations show that LiPON reacts with Li metal. Here, we utilize in situ electron microscopy to observe the dynamic evolutions at the LiPON–Li interface upon contacting and under biasing. We reveal that a thin interface layer (~60 nm) develops at the LiPON–Li interface upon contact. This layer is composed of conductive binary compounds that show a unique spatial distribution that warrants an electrochemical stability of the interface, serving as an effective passivation layer. Our results explicate the excellent cyclability of LiPON and reconcile the existing debates regarding the stability of the LiPON–Li interface, demonstrating that, though glassy solid electrolytes may not have a perfect initial electrochemical window with Li metal, they may excel in future applications for ASSBs.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1772870
Journal Information:
Nano Letters, Journal Name: Nano Letters Journal Issue: 1 Vol. 21; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (30)

Lithium-Ion Batteries: Solid Electrolyte: the Key for High-Voltage Lithium Batteries (Adv. Energy Mater. 4/2015) journal February 2015
Mechanism of Lithium Metal Penetration through Inorganic Solid Electrolytes journal July 2017
Fabrication and characterization of amorphous lithium electrolyte thin films and rechargeable thin-film batteries journal March 1993
Thin-film lithium and lithium-ion batteries journal November 2000
Reduction of charge-transfer resistance at the solid electrolyte – electrode interface by pulsed laser deposition of films from a crystalline Li2PO2N source journal April 2016
Solid-state thin-film rechargeable batteries journal February 2005
Interface reactions between LiPON and lithium studied by in-situ X-ray photoemission journal May 2015
Inorganic Solid-State Electrolytes for Lithium Batteries: Mechanisms and Properties Governing Ion Conduction journal December 2015
Interfacial Stability of Li Metal–Solid Electrolyte Elucidated via in Situ Electron Microscopy journal October 2016
Origin of Outstanding Stability in the Lithium Solid Electrolyte Materials: Insights from Thermodynamic Analyses Based on First-Principles Calculations journal October 2015
Deposition and Confinement of Li Metal along an Artificial Lipon–Lipon Interface journal February 2019
Resolving the Amorphous Structure of Lithium Phosphorus Oxynitride (Lipon) journal July 2018
Atomistic Origins of High Rate Capability and Capacity of N-Doped Graphene for Lithium Storage journal February 2014
Lithium battery chemistries enabled by solid-state electrolytes journal February 2017
A solid future for battery development journal September 2016
Li–O2 and Li–S batteries with high energy storage journal January 2012
Design principles for solid-state lithium superionic conductors journal August 2015
Negating interfacial impedance in garnet-based solid-state Li metal batteries journal December 2016
NIH Image to ImageJ: 25 years of image analysis journal June 2012
High electronic conductivity as the origin of lithium dendrite formation within solid electrolytes journal January 2019
Lithium metal anodes for rechargeable batteries journal January 2014
First principles study on electrochemical and chemical stability of solid electrolyte–electrode interfaces in all-solid-state Li-ion batteries journal January 2016
The local electronic structure of α-Li3N journal July 2008
Toward garnet electrolyte–based Li metal batteries: An ultrathin, highly effective, artificial solid-state electrolyte/metallic Li interface journal April 2017
Handbook of Solid State Batteries book January 2015
Nanocrystalline Li[sub x]Mn[sub 2−y]O[sub 4] Cathodes for Solid-State Thin-Film Rechargeable Lithium Batteries journal January 1999
“Lithium-Free” Thin-Film Battery with In Situ Plated Li Anode journal January 2000
Characterization of Thin-Film Rechargeable Lithium Batteries with Lithium Cobalt Oxide Cathodes journal January 1996
A Stable Thin-Film Lithium Electrolyte: Lithium Phosphorus Oxynitride journal January 1997
Frontiers of solid-state batteries journal October 2018

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