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Fluorinated solid electrolyte interphase enables highly reversible solid-state Li metal battery

Journal Article · · Science Advances
 [1];  [2];  [3];  [3];  [3];  [3];  [3];  [4];  [3]
  1. Zhejiang Univ., Hangzhou (China); Univ. of Maryland, College Park, MD (United States); DOE/OSTI
  2. Univ. of Maryland, College Park, MD (United States); Huazhong Univ. of Science and Technology, Wuhan (China)
  3. Univ. of Maryland, College Park, MD (United States)
  4. Huazhong Univ. of Science and Technology, Wuhan (China)
Solid-state electrolytes (SSEs) are receiving great interest because their high mechanical strength and transference number could potentially suppress Li dendrites and their high electrochemical stability allows the use of high-voltage cathodes, which enhances the energy density and safety of batteries. However, the much lower critical current density and easier Li dendrite propagation in SSEs than in nonaqueous liquid electrolytes hindered their possible applications. Herein, we successfully suppressed Li dendrite growth in SSEs by in situ forming an LiF-rich solid electrolyte interphase (SEI) between the SSEs and the Li metal. The LiF-rich SEI successfully suppresses the penetration of Li dendrites into SSEs, while the low electronic conductivity and the intrinsic electrochemical stability of LiF block side reactions between the SSEs and Li. The LiF-rich SEI enhances the room temperature critical current density of Li3PS4to a record-high value of >2 mA cm-2. Moreover, the Li plating/stripping Coulombic efficiency was escalated from 88% of pristine Li3PS4 to more than 98% for LiF-coated Li3PS4. In situ formation of electronic insulating LiF-rich SEI provides an effective way to prevent Li dendrites in the SSEs, constituting a substantial leap toward the practical applications of next-generation high-energy solid-state Li metal batteries.
Research Organization:
Univ. of Maryland, College Park, MD (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0008200
OSTI ID:
1614092
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 12 Vol. 4; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (19)

Fluorinated hybrid solid-electrolyte-interphase for dendrite-free lithium deposition journal January 2020
Highly Elastic Polyrotaxane Binders for Mechanically Stable Lithium Hosts in Lithium‐Metal Batteries journal May 2019
Toward High‐Energy‐Density Lithium Metal Batteries: Opportunities and Challenges for Solid Organic Electrolytes journal January 2020
Ultrathin Bilayer of Graphite/SiO 2 as Solid Interface for Reviving Li Metal Anode journal August 2019
Inside or Outside: Origin of Lithium Dendrite Formation of All Solid‐State Electrolytes journal September 2019
An Air‐Stable and Dendrite‐Free Li Anode for Highly Stable All‐Solid‐State Sulfide‐Based Li Batteries journal August 2019
Boosting Superior Lithium Storage Performance of Alloy‐Based Anode Materials via Ultraconformal Sb Coating–Derived Favorable Solid‐Electrolyte Interphase journal December 2019
A Versatile Sn‐Substituted Argyrodite Sulfide Electrolyte for All‐Solid‐State Li Metal Batteries journal January 2020
The Failure of Solid Electrolyte Interphase on Li Metal Anode: Structural Uniformity or Mechanical Strength? journal March 2020
4.5 V High‐Voltage Rechargeable Batteries Enabled by the Reduction of Polarization on the Lithium Metal Anode journal August 2019
4.5 V High‐Voltage Rechargeable Batteries Enabled by the Reduction of Polarization on the Lithium Metal Anode journal October 2019
A compact inorganic layer for robust anode protection in lithium‐sulfur batteries journal November 2019
Design Principles of the Anode–Electrolyte Interface for All Solid‐State Lithium Metal Batteries journal October 2019
Designing solid-state interfaces on lithium-metal anodes: a review journal September 2019
In situ fluorinated solid electrolyte interphase towards long-life lithium metal anodes journal January 2020
Recent advances in the interface engineering of solid-state Li-ion batteries with artificial buffer layers: challenges, materials, construction, and characterization journal January 2019
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High-performance all-solid-state batteries enabled by salt bonding to perovskite in poly(ethylene oxide) journal August 2019

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