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Title: Transforming from planar to three-dimensional lithium with flowable interphase for solid lithium metal batteries

Journal Article · · Science Advances

Solid-state lithium (Li) metal batteries are prominent among next-generation energy storage technologies due to their significantly high energy density and reduced safety risks. Previously, solid electrolytes have been intensively studied and several materials with high ionic conductivity have been identified. However, there are still at least three obstacles before making the Li metal foil-based solid-state systems viable, namely, high interfacial resistance at the Li/electrolyte interface, low areal capacity, and poor power output. The problems are addressed by incorporating a flowable interfacial layer and three-dimensional Li into the system. The flowable interfacial layer can accommodate the interfacial fluctuation and guarantee excellent adhesion at all time, whereas the three-dimensional Li significantly reduces the interfacial fluctuation from the whole electrode level (tens of micrometers) to local scale (submicrometer) and also decreases the effective current density for high-capacity and high-power operations. As a consequence, both symmetric and full-cell configurations can achieve greatly improved electrochemical performances in comparison to the conventional Li foil, which are among the best reported values in the literature. Noticeably, solid-state full cells paired with high–mass loading LiFePO4 exhibited, at 80°C, a satisfactory specific capacity even at a rate of 5 C (110 mA·hour g-1) and a capacity retention of 93.6% after 300 cycles at a current density of 3 mA cm-2 using a composite solid electrolyte middle layer. In addition, when a ceramic electrolyte middle layer was adopted, stable cycling with greatly improved capacity could even be realized at room temperature.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515; award351198; Battery Materials Research (BMR) program; award351199; Battery 500 Consortium program
OSTI ID:
1419638
Journal Information:
Science Advances, Vol. 3, Issue 10; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 121 works
Citation information provided by
Web of Science

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Cited By (22)

Long Cycle Life Lithium Metal Batteries Enabled with Upright Lithium Anode journal February 2019
Intercalated Electrolyte with High Transference Number for Dendrite‐Free Solid‐State Lithium Batteries journal April 2019
Controlling Li Ion Flux through Materials Innovation for Dendrite‐Free Lithium Metal Anodes journal September 2019
Suppressing Li Metal Dendrites Through a Solid Li‐Ion Backup Layer journal August 2018
Tape‐Casting Li 0.34 La 0.56 TiO 3 Ceramic Electrolyte Films Permit High Energy Density of Lithium‐Metal Batteries journal November 2019
A Lithium‐Ion Pump Based on Piezoelectric Effect for Improved Rechargeability of Lithium Metal Anode journal September 2019
2D Materials for Lithium/Sodium Metal Anodes journal October 2018
Liquid–Solid Interfacial Assemblies of Soft Materials for Functional Freestanding Layered Membrane–Based Devices toward Electrochemical Energy Systems journal April 2019
Mixed Ion and Electron‐Conducting Scaffolds for High‐Rate Lithium Metal Anodes journal April 2019
Artificial Solid‐Electrolyte Interphase Enabled High‐Capacity and Stable Cycling Potassium Metal Batteries journal September 2019
A 3D Lithium/Carbon Fiber Anode with Sustained Electrolyte Contact for Solid‐State Batteries journal December 2019
Design Principles of the Anode–Electrolyte Interface for All Solid‐State Lithium Metal Batteries journal October 2019
Diatomite derived hierarchical hybrid anode for high performance all-solid-state lithium metal batteries journal June 2019
An intermediate temperature garnet-type solid electrolyte-based molten lithium battery for grid energy storage journal July 2018
Designing solid-state electrolytes for safe, energy-dense batteries journal February 2020
MXene-engineered lithium–sulfur batteries journal January 2019
Homogeneous guiding deposition of sodium through main group II metals toward dendrite-free sodium anodes journal April 2019
Lithiophilicity chemistry of heteroatom-doped carbon to guide uniform lithium nucleation in lithium metal anodes journal February 2019
Building Better Batteries in the Solid State: A Review journal November 2019
A Lithium-Ion Pump Based on Piezoelectric Effect for Improved Rechargeability of Lithium Metal Anode. text January 2019
Controllable two-dimensional movement and redistribution of lithium ions in metal oxides journal June 2019
An ultrastable lithium metal anode enabled by designed metal fluoride spansules journal March 2020

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