Preparation and characterization of a semi‐interpenetrating network gel polymer electrolyte

Abstract

Poly(PEG200 maleate) was synthesized as a new type crosslinkable prepolymer and the semi-interpenetrating polymer network (semi-IPN) gel electrolytes were prepared by means of thermal polymerization. Their intrinsic properties were characterized by FTIR spectroscopy, differential scanning calorimetry (DSC), X-ray diffractions (XRD), scanning electron microscopy, alternating current impedance (AC impedance), and linear sweep voltammetry. The prepared polymer hosts are transparent and have good mechanical properties. The results of DSC and XRD confirm that the prepared hosts are in amorphous state and they can hold enough liquid electrolytes, which is favorable for Li 1 ions to transport via both the absorbed liquid electrolyte and the gel of the entire systems. The semi-IPN gel electrolytes exhibit high ionic conductivity on the order of 10 23 S cm 21. Their electrochemical stability up to 14.6 V against Li

A Superior Polymer Electrolyte with Rigid Cyclic Carbonate Backbone for Rechargeable Lithium Ion Batteries

“…Some other polymer matrices have also been widely studied until now such as polyacrylonitrile (PAN), poly­(ethylene oxide) (PEO), poly­(methyl methacrylate) (PMMA), etc. However, in terms of mechanical strength, ionic conductivity, and electrochemical stability, these polymer electrolytes can hardly meet the comprehensive requirement of commercial lithium ion batteries, i.e., poly­(methyl methacrylate)-based electrolyte suffers from poor mechanical properties, polyacrylonitrile-based electrolyte exhibits poor compatibility with lithium anode, − and poly­(ethylene oxide)-based electrolyte has a narrow electrochemical window below 4.0 V vs Li + /Li. More recently, great efforts have been made to develop novel polymer electrolyte matrices, such as poly­(propylene carbonate), , poly­(ethylene carbonate), − poly-α-cyanoacrylate, , and so on.…”

Ring-Opening Copolymerization of Maleic Anhydride with Epoxides: A Chain-Growth Approach to Unsaturated Polyesters

“…Approximately 1.7 million metric tons of maleic anhydride (MA) were produced and consumed in 2009, over 40% of which was used for the production of unsaturated polyesters (UPs). , Utilization of UPs in resins, composite materials, biomedical devices, and drug delivery applications benefits from the ability to enhance polymer properties through post-polymerization modifications of the maleate or fumarate units provided by MA. For example, easily cured UPs excel in lightweight, sustainable coatings and materials technology, namely in applications such as wind turbines and high-performance housing and marine materials .…”

Induced Microphase Separation in Hybrid Composite Polymer Electrolytes Based on Poly(acrylonitrile‐r‐butadienes) and Ionic Liquids

“…PAN was chosen because it weakly coordinates Li ions and has high electrochemical stability . A number of polymer electrolytes have also been developed based on plasticized acrylonitrile‐butadiene‐styrene copolymer and PEO‐modified acrylonitrile‐butadiene rubber . However, in all these systems liquid organic electrolytes, which are known to be volatile, flammable, and susceptible to electrochemical instability, have been used to increase conductivity.…”