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

Solid-State, Single-Ion Conducting, Polymer Blend Electrolytes with Enhanced Li+ Conduction, Electrochemical Stability, and Limiting Current Density

Journal Article · · Chemistry of Materials
 [1];  [2]
  1. University of Delaware, Newark, DE (United States); University of Delaware
  2. University of Delaware, Newark, DE (United States)
The development of solid-state polymer electrolytes with high lithium conductivity is crucial to improve lithium-ion battery performance and ameliorate the safety challenges associated with current solvent-based electrolytes. Unfortunately, sluggish polymer segmental dynamics are known to constrain conductivity enhancements in solid-state polymer electrolyte systems, limiting overall performance. In this work, a glassy single-ion-conducting polymer, poly[lithium sulfonyl(trifluoromethane sulfonyl)imide methacrylate] (PLiMTFSI), was blended with a flexible polymer, poly(oligo-oxyethylene methyl ether methacrylate) (POEM), and the impact of PLiMTFSI molecular weight and ion concentration on the thermal and ion-conducting behavior of blend electrolytes was investigated. High ionic conductivities approaching 1 × 10-2 S/cm at 150 °C were realized in this polymer blend electrolyte system as a result of decoupling Li+ transport from polymer segmental dynamics. The decoupled ion transport was attributed to the packing frustration of the glassy PLiMTFSI – sufficient percolating free volume was generated to produce effective ion diffusion pathways. This decoupling was tunable as the ion transport could be altered from being closely coupled to the polymer segmental dynamics (Vogel–Tammann–Fulcher-like) to hopping (Arrhenius-like) by increasing the PLiMTFSI molecular weight and ion concentration. Moreover, the immobilized TFSI anion resulted in high Li+ selectivity (Li+ transference number = 0.9), high electrochemical stability (up to 4.7 V against Li+ / Li), and limiting current density of 1.8 mA/cm2 (electrolyte thickness = 0.05 cm). These features suggest that this single-ion-conducting, polymer blend electrolyte might be a promising alternative to a benchmark system – salt-doped polyethylene oxide. Moreover, the above characteristics can support the battery operation at higher voltages using energy-dense Li metal anodes, with faster charging rates and enhanced energy/power densities. Altogether, the results suggest that polymer chain packing frustration can be exploited to overcome the constraints of slow polymer segmental relaxations to achieve rapid and highly selective ion transport and enhanced performance in solid-state polymer electrolytes.
Research Organization:
University of Delaware, Newark, DE (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0014458
OSTI ID:
2339829
Journal Information:
Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 4 Vol. 36; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (150)

Electrolyte-Gated Transistors for Organic and Printed Electronics journal December 2012
Double-Layer Polymer Electrolyte for High-Voltage All-Solid-State Rechargeable Batteries journal December 2018
Effect of Organic–Inorganic Hybrid Nanoparticles (POSS–PEG(n = 4)) on Thermal, Mechanical, and Electrical Properties of PEO‐Based Solid Polymer Electrolytes journal September 2015
Polysiloxane‐Based Single‐Ion Conducting Polymer Blend Electrolyte Comprising Small‐Molecule Organic Carbonates for High‐Energy and High‐Power Lithium‐Metal Batteries journal March 2022
Li 2 S 6 ‐Integrated PEO‐Based Polymer Electrolytes for All‐Solid‐State Lithium‐Metal Batteries journal June 2021
Single‐Ion Conducting Poly(Ethylene Oxide Carbonate) as Solid Polymer Electrolyte for Lithium Batteries journal October 2019
Challenges of polymer electrolyte with wide electrochemical window for high energy solid‐state lithium batteries journal January 2023
Ideal copolymers and the second-order transitions of synthetic rubbers. i. non-crystalline copolymers journal September 1952
The Gordon‐Taylor equation. Additivity and interaction in compatible polymer blends journal August 1988
Tuning Block Polymer Structure, Properties, and Processability for the Design of Efficient Nanostructured Materials Systems journal January 2017
Photo‐Cross‐Linked Single‐Ion Conducting Polymer Electrolyte for Lithium‐Metal Batteries journal February 2022
Relaxation dynamics of blends of PVDF and zwitterionic copolymer by dielectric relaxation spectroscopy journal March 2020
Block copolymer electrolytes for rechargeable lithium batteries journal November 2013
Scaling of the segmental relaxation times of polymers and its relation to the thermal expansivity journal August 2004
Single-ion conducting polymer electrolyte for Li||LiNi0.6Mn0.2Co0.2O2 batteries—impact of the anodic cutoff voltage and ambient temperature journal January 2021
Polyacrylonitrile Nanofiber-Reinforced Flexible Single-Ion Conducting Polymer Electrolyte for High-Performance, Room-Temperature All-Solid-State Li-Metal Batteries journal January 2022
The importance of the lithium ion transference number in lithium/polymer cells journal September 1994
Ionic conductivities of poly(methoxy polyethylene glycol monomethacrylate) complexes with LiSO3CH3 journal November 1984
Electrochemical measurement of transference numbers in polymer electrolytes journal December 1987
Approach to the composition dependence of the glass transition temperature of compatible polymer blends: 1 journal January 1988
The determination of hopping rates and carrier concentrations in ionic conductors by a new analysis of ac conductivity journal April 1983
Polymeric solid electrolytes: Dynamic bond percolation and free volume models for diffusion journal December 1983
The glass transition temperature of random copolymers: 2. Extension of the Gordon-Taylor equation for asymmetric Tg vs composition curves journal March 1997
Self-doped block copolymer electrolytes for solid-state, rechargeable lithium batteries journal July 2001
A “phantom bubble” model for the distribution of free volume in polymers journal March 1999
A Dual-Salt PEO-based polymer electrolyte with Cross-Linked polymer network for High-Voltage lithium metal batteries journal December 2022
Single-ion conducting polymer–silicate nanocomposite electrolytes for lithium battery applications journal March 2005
Single-ion polymer electrolytes based on a delocalized polyanion for lithium batteries journal December 2011
A new single-ion polymer electrolyte based on polyvinyl alcohol for lithium ion batteries journal January 2013
Single lithium-ion conducting polymer electrolytes based on poly[(4-styrenesulfonyl)(trifluoromethanesulfonyl)imide] anions journal March 2013
The influence of interface polarization on the determination of lithium transference numbers of salt in polyethylene oxide electrolytes journal December 2013
Improvement of lithium-ion battery performance at low temperature by adopting polydimethylsiloxane-based electrolyte additives journal August 2014
Covalent silica-PEO-LiTFSI hybrid solid electrolytes via sol-gel for Li-ion battery applications journal September 2016
Cross-Linked Solid Polymer Electrolyte for All-Solid-State Rechargeable Lithium Batteries journal December 2016
Glass transition and ionic conduction in plasticized and doped ionomers journal September 2005
Correlation between dynamic fragility and glass transition temperature for different classes of glass forming liquids journal August 2006
Block and graft copolymer electrolytes for high-performance, solid-state, lithium batteries journal April 2004
Surface-protected LiCoO2 with ultrathin solid oxide electrolyte film for high-voltage lithium ion batteries and lithium polymer batteries journal June 2018
Dielectric studies and AC conductivity of PVDF-HFP: LiBF4: EC plasticized polymer electrolytes journal January 2021
Melt-compounded salt-containing poly(ethylene oxide)/clay nanocomposites for polymer electrolyte membranes journal August 2005
Alternating copolymers of carbon dioxide with glycidyl ethers for novel ion-conductive polymer electrolytes journal September 2010
Examination of the fundamental relation between ionic transport and segmental relaxation in polymer electrolytes journal August 2014
Fabrication and characterizations of soft and flexible Poly(dimethylsiloxane)-incorporated network polymer electrolyte membranes journal January 2020
Pre-irradiation grafted single lithium-ion conducting polymer electrolyte based on poly(vinylidene fluoride) journal October 2018
Design of Stretchable and Self-Healing Gel Electrolytes via Fully Zwitterionic Polymer Networks in Solvate Ionic Liquids for Li-Based Batteries journal March 2019
Electrochemically Stable, High Transference Number Lithium Bis(malonato)borate Polymer Solution Electrolytes journal April 2020
Polyethylene Oxide/Sodium Sulfonamide Polymethacrylate Blends as Highly Conducting Single-Ion Solid Polymer Electrolytes journal March 2023
Role of Side-Chain Architecture in Poly(ethylene oxide)-Based Copolymers journal June 2020
Influence of Added Salt on Chain Conformations in Poly(ethylene oxide) Melts: SANS Analysis with Complications journal August 2020
Role of Molecular Architecture on Ion Transport in Ethylene oxide-Based Polymer Electrolytes journal February 2021
Unique Carbonate-Based Single Ion Conducting Block Copolymers Enabling High-Voltage, All-Solid-State Lithium Metal Batteries journal July 2021
Uncovering Local Correlations in Polymer Electrolytes by X-ray Scattering and Molecular Dynamics Simulations journal July 2021
Ionic Conductivities of Broad Dispersity Lithium Salt-Doped Polystyrene/Poly(ethylene oxide) Triblock Polymers journal September 2021
Glass-Forming Ability of Polyzwitterions journal October 2021
Introduction of Trifluoromethanesulfonamide Groups in Poly(ethylene oxide): Ionic Conductivity of Single-Ion-Conducting Block Copolymer Electrolytes journal February 2022
Superionic Li-Ion Transport in a Single-Ion Conducting Polymer Blend Electrolyte journal May 2022
How Dispersity from Step-Growth Polymerization Affects Polymer Dynamics from Coarse-Grained Molecular Simulations journal November 2022
Understanding Lithium-Ion Dynamics in Single-Ion and Salt-in-Polymer Perfluoropolyethers and Polyethyleneglycol Electrolytes Using Solid-State NMR journal April 2023
The Importance of Morphology on Ion Transport in Single-Ion, Comb-Branched Copolymer Electrolytes: Experiments and Simulations journal March 2023
Ion Conduction in Polymerized Ionic Liquids with Different Pendant Groups journal June 2015
Tuning the Dynamic Fragility of Acrylic Polymers by Small Molecules: The Interplay of Hydrogen Bonding Strength journal June 2015
ABA Triblock Brush Polymers: Synthesis, Self-Assembly, Conductivity, and Rheological Properties journal July 2015
Chemically Specific Dynamic Bond Percolation Model for Ion Transport in Polymer Electrolytes journal September 2015
Structure and Ionic Conductivity of Polystyrene- block -poly(ethylene oxide) Electrolytes in the High Salt Concentration Limit journal February 2016
Dramatic Tunability of the Glass Transition Temperature and Fragility of Low Molecular Weight Polystyrene by Initiator Fragments Located at Chain Ends journal March 2016
Relationship between Conductivity, Ion Diffusion, and Transference Number in Perfluoropolyether Electrolytes journal April 2016
Effect of Molecular Weight on the Ion Transport Mechanism in Polymerized Ionic Liquids journal June 2016
Universal Relationship between Conductivity and Solvation-Site Connectivity in Ether-Based Polymer Electrolytes journal July 2016
Determination of Interfacial Mixing in Tapered Block Polymer Thin Films: Experimental and Theoretical Investigations journal July 2016
The Compensation Effect in the Vogel–Tammann–Fulcher (VTF) Equation for Polymer-Based Electrolytes journal May 2017
The Role of Solvating 12-Crown-4 Plasticizer on Dielectric Constant and Ion Conduction of Poly(ethylene oxide) Single-Ion Conductors journal July 2017
Effect of Chain Rigidity on the Decoupling of Ion Motion from Segmental Relaxation in Polymerized Ionic Liquids: Ambient and Elevated Pressure Studies journal August 2017
Optimizing Ion Transport in Polyether-Based Electrolytes for Lithium Batteries journal April 2018
Improved Single-Ion Conductivity of Polymer Electrolyte via Accelerated Segmental Dynamics journal December 2020
Nonconductive Polymers Enable Higher Ionic Conductivities and Suppress Reactivity in Hybrid Sulfide–Polymer Solid State Electrolytes journal July 2022
Unraveling the Role of Neutral Units for Single-Ion Conducting Polymer Electrolytes journal October 2021
Does Cell Polarization Matter in Single-Ion Conducting Electrolytes? journal January 2022
Single-Ion versus Dual-Ion Conducting Electrolytes: The Relevance of Concentration Polarization in Solid-State Batteries journal February 2022
In Situ Dendrimer-Crosslinked Gel Polymer Electrolytes for Lithium-Ion Batteries with High Ionic Conductivity and Excellent Electrochemical Performance journal May 2022
Ionogel Electrolytes Supported by Zwitterionic Copolymers Featuring Lithium Ion-Mediated, Noncovalent Cross-Links journal March 2023
Effect of Building Block Connectivity and Ion Solvation on Electrochemical Stability and Ionic Conductivity in Novel Fluoroether Electrolytes journal July 2021
Design of Polymeric Zwitterionic Solid Electrolytes with Superionic Lithium Transport journal January 2022
Systematic Computational and Experimental Investigation of Lithium-Ion Transport Mechanisms in Polyester-Based Polymer Electrolytes journal July 2015
Improved Li + Transport in Polyacetal Electrolytes: Conductivity and Current Fraction in a Series of Polymers journal April 2021
A Practical Polymer Electrolyte for Lithium and Sodium Batteries: Poly(pentyl malonate) journal October 2022
Single-Ion Conducting Multi-block Copolymer Electrolyte for Lithium-Metal Batteries with High Mass Loading NCM811 Cathodes journal January 2023
Single-Ion Conducting Polymer Electrolytes for Lithium Metal Polymer Batteries that Operate at Ambient Temperature journal September 2016
Harnessing the Power of Plastics: Nanostructured Polymer Systems in Lithium-Ion Batteries journal August 2017
Promising Routes to a High Li + Transference Number Electrolyte for Lithium Ion Batteries journal October 2017
Glass Transition Temperature and Ion Binding Determine Conductivity and Lithium–Ion Transport in Polymer Electrolytes journal December 2020
Influence of Dielectric Constant on Ionic Transport in Polyether-Based Electrolytes journal November 2017
Enhanced Li + Conduction within Single-Ion Conducting Polymer Gel Electrolytes via Reduced Cation–Polymer Interaction journal February 2020
Decoupling Ion Transport and Matrix Dynamics to Make High Performance Solid Polymer Electrolytes journal September 2022
Phase Behavior and Electrochemical Characterization of Blends of Perfluoropolyether, Poly(ethylene glycol), and a Lithium Salt journal January 2015
The Temperature Dependence of Relaxation Mechanisms in Amorphous Polymers and Other Glass-forming Liquids journal July 1955
Molecular Level Differences in Ionic Solvation and Transport Behavior in Ethylene Oxide-Based Homopolymer and Block Copolymer Electrolytes journal February 2021
Buffering Volume Change in Solid-State Battery Composite Cathodes with CO2-Derived Block Polycarbonate Ethers journal September 2022
Gyroid and Other Ordered Morphologies in Single-Ion Conducting Polymers and Their Impact on Ion Conductivity journal December 2019
Distinct Difference in Ionic Transport Behavior in Polymer Electrolytes Depending on the Matrix Polymers and Incorporated Salts journal March 2005
Fragility of Glass-Forming Polymer Liquids journal November 2005
Temperature Dependence of Ion Transport: The Compensated Arrhenius Equation journal April 2009
Torsional Relaxation and Friction on the Nanometer Length Scale:  Comparison of Small-Molecule Rotation in Poly(dimethylsiloxane) and Poly(isobutylene) journal March 2003
Influence of Molecular Weight on Fast Dynamics and Fragility of Polymers journal November 2004
Effect of Molecular Weight on the Mechanical and Electrical Properties of Block Copolymer Electrolytes journal June 2007
Decoupling Ionic Conductivity from Structural Relaxation: A Way to Solid Polymer Electrolytes? journal June 2011
Ionic Conductivities of Block Copolymer Electrolytes with Various Conducting Pathways: Sample Preparation and Processing Considerations journal May 2012
Allyl Glycidyl Ether-Based Polymer Electrolytes for Room Temperature Lithium Batteries journal November 2013
Influence of Solvating Plasticizer on Ion Conduction of Polysiloxane Single-Ion Conductors journal April 2014
Role of Chemical Structure in Fragility of Polymers: A Qualitative Picture journal October 2008
Molecular Weight Dependence of Fragility in Polystyrene journal July 1998
Morphology and Thermodynamic Properties of a Copolymer with an Electronically Conducting Block: Poly(3-ethylhexylthiophene)- block -poly(ethylene oxide) journal January 2012
The ‘universal’ dielectric response journal June 1977
Crystalline structure and molecular mobility of PVDF chains in PVDF/PMMA blend films analyzed by solid-state 19F MAS NMR spectroscopy journal May 2012
Poly(Ethylene Oxide)-based Electrolyte for Solid-State-Lithium-Batteries with High Voltage Positive Electrodes: Evaluating the Role of Electrolyte Oxidation in Rapid Cell Failure journal March 2020
Reducing crystallinity in solid polymer electrolytes for lithium-metal batteries via statistical copolymerization journal August 2021
Antiplasticization and the elastic properties of glass-forming polymer liquids journal January 2010
Chemically anchored liquid-PEO based block copolymer electrolytes for solid-state lithium-ion batteries journal January 2014
Thiol–ene synthesis and characterization of lithium bis(malonato)borate single-ion conducting gel polymer electrolytes journal January 2017
A sulfonimide-based alternating copolymer as a single-ion polymer electrolyte for high-performance lithium-ion batteries journal January 2017
Nanostructured multi-block copolymer single-ion conductors for safer high-performance lithium batteries journal January 2018
Charging toward improved lithium-ion polymer electrolytes: exploiting synergistic experimental and computational approaches to facilitate materials design journal January 2019
Fluorinated polysulfonamide based single ion conducting room temperature applicable gel-type polymer electrolytes for lithium ion batteries journal January 2019
Synergistic effect of organic plasticizer and lepidolite filler on polymer electrolytes for all-solid high-voltage Li–metal batteries journal January 2020
Determining the limiting factor of the electrochemical stability window for PEO-based solid polymer electrolytes: main chain or terminal –OH group? journal January 2020
Role of solvation site segmental dynamics on ion transport in ethylene-oxide based side-chain polymer electrolytes journal January 2021
A single-ion gel polymer electrolyte based on polyimide grafted with lithium 3-chloropropanesulfonyl (trifluoromethanesulfonyl) imide for high performance lithium ion batteries journal January 2023
Free volume and intrinsic microporosity in polymers journal January 2005
Controlled ionic conductivity via tapered block polymer electrolytes journal January 2015
Second‐Order Transition Temperatures and Related Properties of Polystyrene. I. Influence of Molecular Weight journal June 1950
Nature of the Glass Transition and the Glassy State journal March 1958
Theory of dynamic barriers, activated hopping, and the glass transition in polymer melts journal July 2004
Molecular mobility and Li+ conduction in polyester copolymer ionomers based on poly(ethylene oxide) journal February 2009
The free-volume structure of a polymer melt, poly(vinyl methylether) from molecular dynamics simulations and cavity analysis journal August 2009
Ohm’s law for ion conduction in lithium and beyond-lithium battery electrolytes journal July 2019
Amorphous polymer dynamics and free volume element size distributions from ultrafast IR spectroscopy journal June 2020
ΩCpTg and related quantities for high polymers journal April 1973
Why many polymers are so fragile journal April 2007
Structures and Properties of Rubberlike Networks book August 1997
Electrochemical aspects of the generation of ramified metallic electrodeposits journal December 1990
ac Hopping Conduction at Extreme Disorder Takes Place on the Percolating Cluster journal July 2008
Assessment of the modified slump test as a measure of the yield stress of high-density thickened tailings journal February 2004
Melt-Formable Block Copolymer Electrolytes for Lithium Rechargeable Batteries journal January 2001
In Situ Concentration Cartography in the Neighborhood of Dendrites Growing in Lithium/Polymer-Electrolyte/Lithium Cells journal January 1999
Well-designed Crosslinked Polymer Electrolyte Enables High Ionic Conductivity and Enhanced Salt Solvation journal January 2020
Limiting Current Density in Single-Ion-Conducting and Conventional Block Copolymer Electrolytes journal April 2022
Comparing Experimental Measurements of Limiting Current in Polymer Electrolytes with Theoretical Predictions journal January 2019
Studies on the Thermal Breakdown of Common Li-Ion Battery Electrolyte Components journal January 2015
Polymer Chemistry book February 2007
Dynamic Mechanical Analysis: A Practical Introduction book May 2008
Assessing the Electrochemical Stability Window of NASICON-Type Solid Electrolytes journal May 2021

Similar Records

Tuning Anion Composition and Mobility to Balance Ionic Conductivity and Cation Selectivity in Solid Polymer Electrolytes
Journal Article · Tue Mar 31 20:00:00 EDT 2026 · Macromolecules · OSTI ID:3025529

Mixed-Polarity Copolymers Based on Ethylene Oxide and Cyclic Carbonate: Insights into Li-Ion Solvation and Conductivity
Journal Article · Wed May 24 20:00:00 EDT 2023 · Macromolecules · OSTI ID:2377392

Enhanced Conductivity via Homopolymer-Rich Pathways in Block Polymer-Blended Electrolytes
Journal Article · Wed Dec 11 19:00:00 EST 2019 · Macromolecules · OSTI ID:1658235