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Evolution and Interplay of Lithium Metal Interphase Components Revealed by Experimental and Theoretical Studies

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.3c14232· OSTI ID:2340728
 [1];  [2];  [3];  [2];  [1];  [1];  [1];  [3];  [1];  [4];  [4];  [5];  [3];  [2];  [1]
  1. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Stanford Univ., CA (United States)
  4. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  5. Stanford Univ., CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
Lithium metal batteries (LMB) have high energy densities and are crucial for clean energy solutions. The characterization of lithium metal interphase is fundamentally and practically important but technically challenging. Taking advantage of synchrotron x-ray which has the unique capability of analyzing crystalline/amorphous phases quantitatively with statistical significance, here we study the composition and dynamics of LMB interphase for a newly developed important LMB electrolyte that is based on fluorinated ether. Pair distribution function analysis revealed the sequential role of anion and solvent in interphase formation during cycling. The relative ratio between Li2O and LiF first increases and then decreases during cycling, suggesting suppressed Li2O formation in both initial and long extended cycles. Theoretical studies revealed that in initial cycles, this is due to the energy barrier in many-electron transfer. In long extended cycles, the anion decomposition product Li2O encourages solvent decomposition by facilitating solvent adsorption on Li2O which is followed by concurrent depletion of both. This work highlights the important role of Li2O in transitioning from anion-derived interphase to a solvent-derived one.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)
Grant/Contract Number:
AC05-76RL01830; SC0012704
OSTI ID:
2340728
Alternate ID(s):
OSTI ID: 2440494
Report Number(s):
BNL--225553-2024-JAAM
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 17 Vol. 146; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (23)

Manipulating Ion Transfer and Interface Stability by A Bulk Interphase Framework for Stable Lithium Metal Batteries journal May 2023
Promoting Mechanistic Understanding of Lithium Deposition and Solid‐Electrolyte Interphase (SEI) Formation Using Advanced Characterization and Simulation Methods: Recent Progress, Limitations, and Future Perspectives journal March 2022
An Atomic Insight into the Chemical Origin and Variation of the Dielectric Constant in Liquid Electrolytes journal August 2021
A fast and robust algorithm for Bader decomposition of charge density journal June 2006
Enabling High-Voltage Lithium-Metal Batteries under Practical Conditions journal July 2019
Liquid electrolyte: The nexus of practical lithium metal batteries journal March 2022
Lithium Metal Anodes with Nonaqueous Electrolytes journal November 2020
Sulfur X-ray Absorption and Emission Spectroscopy of Organic Sulfones journal March 2023
Inorganic Solid Electrolyte Interphase Engineering Rationales Inspired by Hexafluorophosphate Decomposition Mechanisms journal January 2023
Effects of High and Low Salt Concentration in Electrolytes at Lithium–Metal Anode Surfaces journal December 2016
High rate and stable cycling of lithium metal anode journal February 2015
Design principles for electrolytes and interfaces for stable lithium-metal batteries journal September 2016
Origin of additional capacities in metal oxide lithium-ion battery electrodes journal November 2013
Knowledge-driven design of solid-electrolyte interphases on lithium metal via multiscale modelling journal October 2023
Pathways for practical high-energy long-cycling lithium metal batteries journal February 2019
Monolithic solid–electrolyte interphases formed in fluorinated orthoformate-based electrolytes minimize Li depletion and pulverization journal September 2019
Rational solvent molecule tuning for high-performance lithium metal battery electrolytes journal January 2022
Identification of LiH and nanocrystalline LiF in the solid–electrolyte interphase of lithium metal anodes journal January 2021
Unravelling the convoluted and dynamic interphasial mechanisms on Li metal anodes journal December 2022
Engineering and characterization of interphases for lithium metal anodes journal January 2022
A grid-based Bader analysis algorithm without lattice bias journal January 2009
Review—Localized High-Concentration Electrolytes for Lithium Batteries journal January 2021
Soft X-Ray Irradiation Effects of Li2O2, Li2CO3 and Li2O Revealed by Absorption Spectroscopy journal November 2012

Figures / Tables (5)


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