Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Enhancing Cycling Stability of Lithium Metal Batteries by a Bifunctional Fluorinated Ether

Journal Article · · Advanced Functional Materials
 [1];  [1];  [2];  [3];  [4];  [4];  [3];  [1];  [1];  [1];  [1];  [2];  [4];  [1];  [1]
  1. Energy and Environmental Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
  2. Environmental and Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland WA 99354 USA
  3. Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland WA 99354 USA
  4. Department of Chemistry State University of New York at Binghamton Binghamton NY 13902 USA

Abstract

The lifespan of lithium (Li) metal batteries (LMBs) can be greatly improved by the formation of inorganic‐rich electrode‐electrolyte interphases (EEIs) (including solid‐electrolyte interphase on anode and cathode‐electrolyte interphase on cathode). In this work, a localized high‐concentration electrolyte containing lithium bis(fluorosulfonyl)imide (LiFSI) salt, 1,2‐dimethoxyethane (DME) solvent and 1,2‐bis(1,1,2,2‐tetrafluoroethoxy)ethane (BTFEE) diluent is optimized. BTFEE is a fluorinated ether with weakly‐solvating ability for LiFSI so it also acts as a co‐solvent in this electrolyte. It can facilitate anion decomposition at electrode surfaces and promote the formation of more inorganic‐rich EEI layers. With an optimized molar ratio of LiFSI:DME:BTFEE = 1:1.15:3, LMBs with a high loading (4 mAh cm −2 ) lithium nickel manganese cobalt oxide (LiNi 0.8 Mn 0.1 Co 0.1 ) cathode can retain 80% capacity in 470 cycles when cycled in a voltage range of 2.8–4.4 V. The fundamental understanding on the functionality of BTFEE revealed in this work provides new perspectives on the design of practical high‐energy density battery systems.

Sponsoring Organization:
USDOE
Grant/Contract Number:
NONE; AC05-76RL01830
OSTI ID:
2391051
Alternate ID(s):
OSTI ID: 2530676
OSTI ID: 2473723
Journal Information:
Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 42 Vol. 34; ISSN 1616-301X
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

References (43)

Electrolyte‐Regulated Solid‐Electrolyte Interphase Enables Long Cycle Life Performance in Organic Cathodes for Potassium‐Ion Batteries journal December 2018
Solvent‐Free Electrolyte for High‐Temperature Rechargeable Lithium Metal Batteries journal May 2023
Lithium Fluoride in Electrolyte for Stable and Safe Lithium‐Metal Batteries journal September 2021
Highly Stable Operation of Lithium Metal Batteries Enabled by the Formation of a Transient High-Concentration Electrolyte Layer journal February 2016
Accurate Determination of Coulombic Efficiency for Lithium Metal Anodes and Lithium Metal Batteries journal October 2017
An Anion‐Tuned Solid Electrolyte Interphase with Fast Ion Transfer Kinetics for Stable Lithium Anodes journal February 2020
Interface Engineering for Lithium Metal Anodes in Liquid Electrolyte journal July 2020
A High Energy‐Density, Cobalt‐Free, Low‐Nickel LiNi0.7Mn0.25Al0.05O2 Cathode with a High‐Voltage Electrolyte for Lithium‐Metal Batteries journal April 2023
Highly Stable Lithium Metal Batteries Enabled by Regulating the Solvation of Lithium Ions in Nonaqueous Electrolytes journal March 2018
An Amphiphilic Molecule‐Regulated Core‐Shell‐Solvation Electrolyte for Li‐Metal Batteries at Ultra‐Low Temperature journal February 2023
The electrochemical behaviour of tetrahydrofuran and propylene carbonate without added electrolyte journal May 1990
Lithium electrode cycleability and morphology dependence on current density journal March 1993
Analysis of the surface of lithium in organic electrolyte by atomic force microscopy, Fourier transform infrared spectroscopy and scanning auger electron microscopy journal December 1998
Highly Fluorinated Interphases Enable High-Voltage Li-Metal Batteries journal January 2018
Localized High-Concentration Sulfone Electrolytes for High-Efficiency Lithium-Metal Batteries journal August 2018
Electrolyte engineering for highly inorganic solid electrolyte interphase in high-performance lithium metal batteries journal March 2023
Cyclic carbonate for highly stable cycling of high voltage lithium metal batteries journal February 2019
Optimization of fluorinated orthoformate based electrolytes for practical high-voltage lithium metal batteries journal January 2021
Enabling High-Voltage Lithium-Metal Batteries under Practical Conditions journal July 2019
A new co-solvent for wide temperature lithium ion battery electrolytes: 2,2,2-Trifluoroethyl n-caproate journal January 2015
Anode-originated SEI migration contributes to formation of cathode-electrolyte interphase layer journal January 2018
Electrolytes for high-voltage lithium batteries journal July 2022
Li 2 O Solid Electrolyte Interphase: Probing Transport Properties at the Chemical Potential of Lithium journal May 2020
Lithium Metal Anodes with Nonaqueous Electrolytes journal November 2020
Toward Safe Lithium Metal Anode in Rechargeable Batteries: A Review journal July 2017
Lithium Diffusion Mechanism through Solid–Electrolyte Interphase in Rechargeable Lithium Batteries journal March 2019
Synergetic Effects of Inorganic Components in Solid Electrolyte Interphase on High Cycle Efficiency of Lithium Ion Batteries journal February 2016
Selecting the Optimal Fluorinated Ether Co-Solvent for Lithium Metal Batteries journal January 2023
First-Principles Analysis of Defect Thermodynamics and Ion Transport in Inorganic SEI Compounds: LiF and NaF journal August 2015
Stable Solid Electrolyte Interphase Formation Induced by Monoquat-Based Anchoring in Lithium Metal Batteries journal April 2021
Voltage and Temperature Limits of Advanced Electrolytes for Lithium-Metal Batteries journal March 2023
Tailoring Electrolyte Solvation for LiF-Rich Solid Electrolyte Interphase toward a Stable Li Anode journal September 2022
Beyond LiF: Tailoring Li2O-Dominated Solid Electrolyte Interphase for Stable Lithium Metal Batteries journal January 2024
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
Electrical and Lithium Ion Dynamics in Three Main Components of Solid Electrolyte Interphase from Density Functional Theory Study journal March 2011
Pathways for practical high-energy long-cycling lithium metal batteries journal February 2019
Understanding and applying coulombic efficiency in lithium metal batteries journal June 2020
Quantification of reversible and irreversible lithium in practical lithium-metal batteries journal September 2022
Direct in situ measurements of electrical properties of solid–electrolyte interphase on lithium metal anodes journal September 2023
Dendrite suppression by anode polishing in zinc-ion batteries journal January 2021
Wide-temperature-range operation of lithium-metal batteries using partially and weakly solvating liquid electrolytes journal January 2023
Role of inner solvation sheath within salt–solvent complexes in tailoring electrode/electrolyte interphases for lithium metal batteries journal November 2020
Review—Localized High-Concentration Electrolytes for Lithium Batteries journal January 2021

Similar Records

Advanced All-Fluorinated Electrolytes for Extended Cycle Life and Stability of Li||SPAN Batteries
Journal Article · Thu Dec 25 19:00:00 EST 2025 · ACS Energy Letters · OSTI ID:3013662

Related Subjects