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Title: Interfacial Chemistry Regulation via a Skin-Grafting Strategy Enables High-Performance Lithium-Metal Batteries

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.7b06437· OSTI ID:1435966

The lithium (Li) metal anode suffers severe interfacial instability from its high reactivity toward liquid electrolytes, especially carbonate-based electrolytes, resulting in poor electrochemical performance of batteries that use 4 V high-capacity cathodes. In this paper, we report a new skin-grafting strategy that stabilizes the Li metal–liquid electrolyte interface by coating the Li metal surface with poly((N-2,2-dimethyl-1,3-dioxolane-4-methyl)-5-norbornene-exo-2,3-dicarboximide), a chemically and electrochemically active polymer layer. This layer, composed of cyclic ether groups with a stiff polycyclic main chain, serves as a grafted polymer skin on the Li metal anode not only to incorporate ether-based polymeric components into the solid-electrolyte interphase (SEI) but also to accommodate Li deposition/dissolution under the skin in a dendrite/moss-free manner. Consequently, a Li-metal battery employing a Li metal anode with the grafted skin paired with LiNi0.5Co0.2Mn0.3O2 cathode has a 90.0% capacity retention after 400 charge/discharge cycles and a capacity of 1.2 mAh/cm2 in a carbonate-based electrolyte. Finally, this proof-of-concept study provides a new direction for regulating the interfacial chemistry of Li metal anodes and for enabling high-performance Li-metal batteries.

Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); National Science Foundation (NSF)
Grant/Contract Number:
EE0007795; DMR-1306938
OSTI ID:
1435966
Alternate ID(s):
OSTI ID: 1430271
Report Number(s):
DOE-PENNSTATE-0007795; PII:974
Journal Information:
Journal of the American Chemical Society, Vol. 139, Issue 43; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 218 works
Citation information provided by
Web of Science

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Polymer Electrolytes for High Energy Density Ternary Cathode Material-Based Lithium Batteries journal February 2019
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Dendrite‐Free Lithium Plating Induced by In Situ Transferring Protection Layer from Separator journal November 2019
Bulk Nanostructured Materials Design for Fracture‐Resistant Lithium Metal Anodes journal February 2019
Large‐Scale Modification of Commercial Copper Foil with Lithiophilic Metal Layer for Li Metal Battery journal January 2020
Free-standing 3D nitrogen–carbon anchored Cu nanorod arrays: in situ derivation from a metal–organic framework and strategy to stabilize lithium metal anodes journal January 2020
3D lithiophilic–lithiophobic–lithiophilic dual-gradient porous skeleton for highly stable lithium metal anode journal January 2020
Suppressing Lithium Dendrite Growth via Sinusoidal Ripple Current Produced by Triboelectric Nanogenerators journal April 2019
Exploiting Lithium‐Depleted Cathode Materials for Solid‐State Li Metal Batteries journal June 2019
Highly Elastic Polyrotaxane Binders for Mechanically Stable Lithium Hosts in Lithium‐Metal Batteries journal May 2019
A borate decorated anion-immobilized solid polymer electrolyte for dendrite-free, long-life Li metal batteries journal January 2019
Bio‐Inspired Stable Lithium‐Metal Anodes by Co‐depositing Lithium with a 2D Vermiculite Shuttle journal May 2019
Solid/Solid Interfacial Architecturing of Solid Polymer Electrolyte–Based All‐Solid‐State Lithium–Sulfur Batteries by Atomic Layer Deposition journal September 2019
High‐Rate and Large‐Capacity Lithium Metal Anode Enabled by Volume Conformal and Self‐Healable Composite Polymer Electrolyte journal March 2019
Visual Chemical Detection Mechanism by a Liquid Gating System with Dipole‐Induced Interfacial Molecular Reconfiguration journal March 2019
Self‐Stabilized and Strongly Adhesive Supramolecular Polymer Protective Layer Enables Ultrahigh‐Rate and Large‐Capacity Lithium‐Metal Anode journal January 2020
Polymer–inorganic solid–electrolyte interphase for stable lithium metal batteries under lean electrolyte conditions journal March 2019
Three‐Dimensional Graphene/Ag Aerogel for Durable and Stable Li Metal Anodes in Carbonate‐Based Electrolytes journal March 2019
Salt-Based Organic-Inorganic Nanocomposites: Towards A Stable Lithium Metal/Li 10 GeP 2 S 12 Solid Electrolyte Interface journal September 2018
First principles studies of self-diffusion processes on metallic lithium surfaces journal January 2019
Highly Tough, Li‐Metal Compatible Organic–Inorganic Double‐Network Solvate Ionogel journal April 2019
An Interfacial Layer Based on Polymers of Intrinsic Microporosity to Suppress Dendrite Growth on Li Metal Anodes journal August 2019
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Fluorine-donating electrolytes enable highly reversible 5-V-class Li metal batteries journal January 2018
Confinement effect and air tolerance of Li plating by lithiophilic poly(vinyl alcohol) coating for dendrite-free Li metal batteries journal January 2019
Lithiophilic CuO Nanoflowers on Ti‐Mesh Inducing Lithium Lateral Plating Enabling Stable Lithium‐Metal Anodes with Ultrahigh Rates and Ultralong Cycle Life journal June 2019
Elastic and Li-ion–percolating hybrid membrane stabilizes Li metal plating journal November 2018
Two-dimensional molecular brush-functionalized porous bilayer composite separators toward ultrastable high-current density lithium metal anodes journal March 2019
Stable and Safe Lithium Metal Batteries with Ni-Rich Cathodes Enabled by a High Efficiency Flame Retardant Additive journal January 2019
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An ultrathin ionomer interphase for high efficiency lithium anode in carbonate based electrolyte journal December 2019
High Ion Conducting Solid Composite Electrolytes with Enhanced Interfacial Compatibility for Lithium Metal Batteries journal February 2019
Self‐Stabilized and Strongly Adhesive Supramolecular Polymer Protective Layer Enables Ultrahigh‐Rate and Large‐Capacity Lithium‐Metal Anode journal December 2019
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