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

Amphipathic Binder Integrating Ultrathin and Highly Ion-Conductive Sulfide Membrane for Cell-Level High-Energy-Density All-Solid-State Batteries

Journal Article · · Advanced Materials
Current sulfide solid-state electrolyte (SE) membranes utilized in all-solid-state lithium batteries (ASLBs) have a high thickness (0.5–1.0 mm) and low ion conductance (<25 mS), which limit the cell-level energy and power densities. Therefore, based on ethyl cellulose's unique amphipathic molecular structure, superior thermal stability, and excellent binding capability, this work fabricates a freestanding SE membrane with an ultralow thickness of 47 µm. With ethyl cellulose as an effective disperser and a binder, the Li6PS5Cl is uniformly dispersed in toluene and possesses superior film formability. In addition, an ultralow areal resistance of 4.32 Ω cm-2 and a remarkable ion conductance of 291 mS (one order higher than the state-of-the-art sulfide SE membrane) are achieved. The ASLBs assembled with this SE membrane deliver cell-level high gravimetric and volumetric energy densities of 175 Wh kg-1 and 675 Wh L-1, individually.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1837859
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 52 Vol. 33; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

Enhancement of the High-Rate Capability of Solid-State Lithium Batteries by Nanoscale Interfacial Modification journal September 2006
Solid‐State Batteries: Sulfide‐Based Solid‐State Electrolytes: Synthesis, Stability, and Potential for All‐Solid‐State Batteries (Adv. Mater. 44/2019) journal September 2019
In Situ Synthesis of a Hierarchical All-Solid-State Electrolyte Based on Nitrile Materials for High-Performance Lithium-Ion Batteries journal May 2015
Slurry‐Fabricable Li + ‐Conductive Polymeric Binders for Practical All‐Solid‐State Lithium‐Ion Batteries Enabled by Solvate Ionic Liquids journal February 2019
Solid‐State Li–Metal Batteries: Challenges and Horizons of Oxide and Sulfide Solid Electrolytes and Their Interfaces journal November 2020
Water‐Mediated Synthesis of a Superionic Halide Solid Electrolyte journal November 2019
Simulation of transverse wood compression using a large-deformation, hyperelastic–plastic material model journal October 2014
Thermal runaway mechanism of lithium ion battery for electric vehicles: A review journal January 2018
Toward practical all-solid-state lithium-ion batteries with high energy density and safety: Comparative study for electrodes fabricated by dry- and slurry-mixing processes journal January 2018
All-solid-state lithium-ion and lithium metal batteries – paving the way to large-scale production journal April 2018
Lithium Dendrite in All-Solid-State Batteries: Growth Mechanisms, Suppression Strategies, and Characterizations journal July 2020
Interface-assisted in-situ growth of halide electrolytes eliminating interfacial challenges of all-inorganic solid-state batteries journal October 2020
Wood-Derived Materials for Green Electronics, Biological Devices, and Energy Applications journal July 2016
Stable Thiophosphate-Based All-Solid-State Lithium Batteries through Conformally Interfacial Nanocoating journal September 2019
Hot Pressed, Fiber-Reinforced (Li 2 S) 70 (P 2 S 5 ) 30 Solid-State Electrolyte Separators for Li Metal Batteries journal April 2019
Interphase Formation of PEO 20 :LiTFSI–Li 6 PS 5 Cl Composite Electrolytes with Lithium Metal journal February 2020
Thin and Flexible Solid Electrolyte Membranes with Ultrahigh Thermal Stability Derived from Solution-Processable Li Argyrodites for All-Solid-State Li-Ion Batteries journal February 2020
Processing Strategies to Improve Cell-Level Energy Density of Metal Sulfide Electrolyte-Based All-Solid-State Li Metal Batteries and Beyond journal October 2020
Batteries and fuel cells for emerging electric vehicle markets journal April 2018
Benchmarking the performance of all-solid-state lithium batteries journal March 2020
High-energy long-cycling all-solid-state lithium metal batteries enabled by silver–carbon composite anodes journal March 2020
Linking void and interphase evolution to electrochemistry in solid-state batteries using operando X-ray tomography journal January 2021
Visualizing plating-induced cracking in lithium-anode solid-electrolyte cells journal April 2021
Ethyl cellulose nanodispersions as stabilizers for oil in  water Pickering emulsions journal September 2017
Reviving lithium cobalt oxide-based lithium secondary batteries-toward a higher energy density journal January 2018
Ultrafast solid-state lithium ion conductor through alloying induced lattice softening of Li 6 PS 5 Cl journal January 2018
Progress and perspectives on halide lithium conductors for all-solid-state lithium batteries journal January 2020
Pressure effects on sulfide electrolytes for all solid-state batteries journal January 2020
Reducing the thickness of solid-state electrolyte membranes for high-energy lithium batteries journal January 2021
Development of Ethyl Cellulose-based Formulations: A Perspective on the Novel Technical Methods journal April 2020
Printable, high-performance solid-state electrolyte films journal November 2020
Ethylcellulose - A Polymer Review journal January 1995
Characterization of Cellulosic Fibers by FTIR Spectroscopy for Their Further Implementation to Building Materials journal January 2018