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

Transition from Vogel-Fulcher-Tammann to Arrhenius Ion-Conducting Behavior in Poly(Ethyl Acrylate)-Based Solid Polymer Electrolytes via Succinonitrile Plasticizer Addition

Journal Article · · Journal of the Electrochemical Society

Solid polymer electrolytes (SPEs) offer potential advantages over liquid electrolytes, including flexibility, safety, and processability. However, they suffer from low room-temperature ionic conductivity. Recently, it has been reported a poly(ethyl acrylate) based (polyEA) SPE, by incorporating 50 wt% of succinonitrile (SN) solid plasticizer, 30 wt% of lithium salt and 5 wt% of fluoroethylene carbonate additive, which achieves a high room-temperature ionic conductivity of 1.01 × 10−3S cm−1(Nat. Nanotechnol, 2022, 17, 768-776). This novel SPE exhibits stability against Li0and anodic stability up to 4.9 V vs Li+/Li. However, the specific mechanism responsible for its high ionic conductivity remains elusive. In this work, by adjusting the weight ratio of SN in the SPE, a transition from Vogel-Fulcher-Tammann to Arrhenius ion-conducting behavior is observed. It is demonstrated that the addition of SN leads to the gradual decoupling of Li-ion from the polymer backbone and its coordination with SN, as revealed by6Li solid-state nuclear magnetic resonance spectroscopy. As a result, Li-ion migration primarily occurs through SN rather than the segmental motion of the polymer backbone. Performances of the SPE in Cu||Li, Li||Li and a LiFePO4||Li pouch cells are shown to demonstrate the commercial viability of this SPE in Li0-anode solid-state batteries.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0012704
OSTI ID:
2425527
Journal Information:
Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 9 Vol. 170; ISSN 0013-4651
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English

References (30)

Long-chain fluorocarbon-driven hybrid solid polymer electrolyte for lithium metal batteries journal January 2022
Ionic Conduction in Polymer‐Based Solid Electrolytes journal January 2023
Well-designed Crosslinked Polymer Electrolyte Enables High Ionic Conductivity and Enhanced Salt Solvation journal January 2020
Highly conductive solid polymer electrolyte membranes based on polyethylene glycol-bis-carbamate dimethacrylate networks journal August 2017
The conductivity and characterization of the plasticized polymer electrolyte based on the P(AN-co-GMA-IDA) copolymer with chelating group journal September 2005
Design of Polymeric Zwitterionic Solid Electrolytes with Superionic Lithium Transport journal January 2022
Structure and Evolution of Quasi‐Solid‐State Hybrid Electrolytes Formed Inside Electrochemical Cells journal July 2022
Trade‐offs between ion‐conducting and mechanical properties: The case of polyacrylate electrolytes journal November 2022
The plastic-crystalline phase of succinonitrile as a universal matrix for solid-state ionic conductors journal June 2004
Advances in electrolyte safety and stability of ion batteries under extreme conditions journal September 2022
Field-Dependent Viscoelastic Properties of Graphite-based Magnetorheological Grease journal September 2022
Strategic Structural Design of a Gel Polymer Electrolyte toward a High Efficiency Lithium-Ion Battery journal May 2019
Enabling high performance all-solid-state lithium metal batteries using solid polymer electrolytes plasticized with ionic liquid journal June 2020
Effect of Structure on Transport Properties (Viscosity, Ionic Conductivity, and Self-Diffusion Coefficient) of Aprotic Heterocyclic Anion (AHA) Room-Temperature Ionic Liquids. 1. Variation of Anionic Species journal November 2015
Polymer‐Based Solid Electrolytes: Material Selection, Design, and Application journal November 2020
30 Years of Lithium-Ion Batteries journal June 2018
Electrolytic characteristics of asymmetric alkyl carbonates solvents for lithium batteries journal October 2002
Intermolecular Chemistry in Solid Polymer Electrolytes for High‐Energy‐Density Lithium Batteries journal July 2019
Reinforce the Adhesion of Gel Electrolyte to Electrode and the Interfacial Charge Transfer via In Situ Electrospinning the Polymeric Nanofiber Matrix journal November 2020
A Temperature‐Responsive Electrolyte Endowing Superior Safety Characteristic of Lithium Metal Batteries journal December 2019
Regulating Lithium-Ion Transference Number of a Poly(vinyl alcohol)-Based Gel Electrolyte by the Incorporation of H3BO3 as an Anion Trapper journal February 2022
Mechanisms and properties of ion-transport in inorganic solid electrolytes journal January 2018
Effect of plasticizer on the conductivity of carboxymethyl cellulose-based solid polymer electrolyte journal February 2019
Core–Shell PMIA@PVdF-HFP/Al2O3 Nanofiber Mats In Situ Coaxial Electrospun on LiFePO4 Electrode as Matrices for Gel Electrolytes journal February 2021
A smart polymer electrolyte coordinates the trade-off between thermal safety and energy density of lithium batteries journal April 2023
An All‐Solid‐State Rechargeable Chloride Ion Battery journal January 2019
Advances in the Cathode Materials for Lithium Rechargeable Batteries journal February 2020
Characterization of the structure and chemistry of the solid–electrolyte interface by cryo-EM leads to high-performance solid-state Li-metal batteries journal June 2022
Aliphatic Polycarbonate-Based Solid-State Polymer Electrolytes for Advanced Lithium Batteries: Advances and Perspective journal August 2018
A polymer electrolyte with a thermally induced interfacial ion-blocking function enables safety-enhanced lithium metal batteries journal March 2022

Similar Records

In situ polymerized succinonitrile-based solid polymer electrolytes for lithium ion batteries
Journal Article · Mon Dec 16 23:00:00 EST 2019 · Solid State Ionics · OSTI ID:1761672

Highly Conductive Polyoxanorbornene‐Based Polymer Electrolyte for Lithium‐Metal Batteries
Journal Article · Mon Jul 17 00:00:00 EDT 2023 · Advanced Science · OSTI ID:1989981