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Ion Transport in Batteries with Polymer Electrolytes

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We discuss polymer electrolytes for use in rechargeable lithium batteries. Polymer electrolytes have the potential to enable batteries with lithium metal anodes. These batteries have significantly higher theoretical energy densities than current lithium-ion batteries. We consider binary mixtures of polymers and salts. We also cover more complex systems such as polymer electrolytes swollen with a solvent (gel polymer electrolytes) and microphase separated polymer electrolytes. By covalently attaching the anions to the chains in a polymer solid, one obtains a single-ion conductor. We mainly focus on experiments wherein the polymer electrolyte is placed between two lithium metal electrodes. These experiments enable the determination of three transport parameters, ionic conductivity, salt diffusion coefficient, and transference number, and the thermodynamic factor. The properties of dry polymer electrolytes are contrasted with those of gel polymer electrolytes. The gel systems exhibit higher conductivity while the dry systems exhibit superior mechanical properties. We discuss interfacial impedance when lithium metal is contacted with polymer electrolytes and the importance of coulombic efficiency.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1871923
Country of Publication:
United States
Language:
English

References (53)

Energy-efficient polymeric gas separation membranes for a sustainable future: A review journal August 2013
Maximizing the right stuff: The trade-off between membrane permeability and selectivity journal June 2017
Electrical Energy Storage and Intercalation Chemistry journal June 1976
Phase Diagrams and Conductivity Behavior of Poly(ethylene oxide)-Molten Salt Rubbery Electrolytes journal December 1994
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
Quantifying the promise of lithium–air batteries for electric vehicles journal January 2014
Before Li Ion Batteries journal November 2018
The Impact of Elastic Deformation on Deposition Kinetics at Lithium/Polymer Interfaces journal January 2005
Ionic-Liquid-Based Polymer Electrolytes for Battery Applications journal November 2015
Recent advances in all-solid-state rechargeable lithium batteries journal March 2017
Ion transport in solvent-free polymers journal January 1988
Molecular Dynamics Simulation of Electrolyte Solutions in Ambient and Supercritical Water. 1. Ion Solvation journal January 1996
Inorganic Solid-State Electrolytes for Lithium Batteries: Mechanisms and Properties Governing Ion Conduction journal December 2015
Deviations from Ohm's Law in Weak Electrolytes journal September 1934
Comparing Two Electrochemical Approaches for Measuring Transference Numbers in Concentrated Electrolytes journal January 2018
Negative Stefan-Maxwell Diffusion Coefficients and Complete Electrochemical Transport Characterization of Homopolymer and Block Copolymer Electrolytes journal January 2018
Grafted polyrotaxanes as highly conductive electrolytes for lithium metal batteries journal January 2019
Poly(ethylenimine)-Based Polymer Blends as Single-Ion Lithium Conductors journal May 2014
Comparing Cycling Characteristics of Symmetric Lithium-Polymer-Lithium Cells with Theoretical Predictions journal January 2018
Comparing Experimental Measurements of Limiting Current in Polymer Electrolytes with Theoretical Predictions journal January 2019
Gel Polymer Electrolytes for Electrochemical Energy Storage journal November 2017
Strategic Structural Design of a Gel Polymer Electrolyte toward a High Efficiency Lithium-Ion Battery journal May 2019
Review of ionic liquids containing, polymer/inorganic hybrid electrolytes for lithium metal batteries journal May 2020
Beyond PEO—Alternative host materials for Li + -conducting solid polymer electrolytes journal June 2018
Fluorinated polysulfonamide based single ion conducting room temperature applicable gel-type polymer electrolytes for lithium ion batteries journal January 2019
A soft non-porous separator and its effectiveness in stabilizing Li metal anodes cycling at 10 mA cm −2 observed in situ in a capillary cell journal January 2017
Effects of Polymer Coatings on Electrodeposited Lithium Metal journal August 2018
Small Groups, Big Impact: Eliminating Li+ Traps in Single-Ion Conducting Polymer Electrolytes journal August 2020
Ohm’s law for ion conduction in lithium and beyond-lithium battery electrolytes journal July 2019
Super Soft All-Ethylene Oxide Polymer Electrolyte for Safe All-Solid Lithium Batteries journal January 2016
Relationship between Steady-State Current in Symmetric Cells and Transference Number of Electrolytes Comprising Univalent and Multivalent Ions journal January 2015
Enhanced strength and temperature dependence of mechanical properties of Li at small scales and its implications for Li metal anodes journal December 2016
Mechanical properties of metallic lithium: from nano to bulk scales journal March 2020
Nanoindentation of high-purity vapor deposited lithium films: A mechanistic rationalization of diffusion-mediated flow journal May 2018
Advanced Model for Solid Electrolyte Interphase Electrodes in Liquid and Polymer Electrolytes journal January 1997
Review—SEI: Past, Present and Future journal January 2017
Evaluation of electrochemical impedance spectra by the distribution of relaxation times journal January 2017
Synthesis and Comparative Studies of Solvent-Free Brush Polymer Electrolytes for Lithium Batteries journal March 2019
Transient Voltammetry with Ultramicroelectrodes Reveals the Electron Transfer Kinetics of Lithium Metal Anodes journal February 2020
Nonlinear electrochemical impedance spectroscopy for solid oxide fuel cell cathode materials journal January 2006
Investigating Li Microstructure Formation on Li Anodes for Lithium Batteries by in Situ 6 Li/ 7 Li NMR and SEM journal July 2015
Quantification of Dead Lithium via In Situ Nuclear Magnetic Resonance Spectroscopy journal August 2020
Design principles for self-forming interfaces enabling stable lithium-metal anodes journal October 2020
Electroanalytical Measurement of Interphase Formation at a Li Metal–Solid Electrolyte Interface journal November 2020
Evaluating the Effects of Temperature and Pressure on Li/PEO-LiTFSI Interfacial Stability and Kinetics journal January 2018
Interfaces in Solid-State Lithium Batteries journal October 2018
Impact of Salt Concentration on Nonuniform Lithium Electrodeposition through Rigid Block Copolymer Electrolytes journal November 2019
Modelling the Polymer Electrolyte/Li-Metal Interface by Molecular Dynamics simulations journal April 2017
Rechargeable Lithium Metal Batteries with an In‐Built Solid‐State Polymer Electrolyte and a High Voltage/Loading Ni‐Rich Layered Cathode journal March 2020
Plating a Dendrite-Free Lithium Anode with a Polymer/Ceramic/Polymer Sandwich Electrolyte journal July 2016
Critical Parameters for Evaluating Coin Cells and Pouch Cells of Rechargeable Li-Metal Batteries journal April 2019
Good Practices for Rechargeable Lithium Metal Batteries journal January 2019
Transport Properties of LiPF[sub 6]-Based Li-Ion Battery Electrolytes journal January 2005