Optimization of methylalumoxane based composite polymeric electrolytes for lithium battery applications

• Published in: Solid state ionics Vol. 245-246; pp. 33 - 42
• Main Authors: Piszcz, M., Marczewski, M., Żukowska, G.Z., Wójcik, J., Wieczorek, W., Siekierski, M.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-09-2013
• Subjects: Backbone; Composite polymeric electrolyte; Crosslinking; Density; Electrolytes; Fillers; Homogeneity; Lithium batteries; Lithium battery; Nanostructure; Organic–inorganic system; TG-FTIR; Vibrational spectroscopy; Lithium battery; Composite polymeric electrolyte; Organic–inorganic system; TG-FTIR; Vibrational spectroscopy
• ISSN: 0167-2738; 1872-7689
• DOI: 10.1016/j.ssi.2013.04.015

Composite polymer electrolytes are developed towards nanosized fillers to improve electrochemical properties upon the decrease of the size of the filler grain. Further improvement can be achieved by means of chemical incorporation of the inorganic part into the polymeric backbone. By these means both branched and crosslinked structures can be achieved with strict control of crosslink density. The paper presented shows the possibilities of tailoring the properties of organic–inorganic composite towards its application in lithium batteries. The increase of conductivity has been proved together with the improvement of material homogeneity, lack of crystallization, improved thermal stability of the electrolyte and improved salt dissociation, efficient stabilization of lithium-CPE SEI and promising cycling properties.
•Composite electrolytes improvement by the addition of novel nanofillers.•Achieved by the chemical bonding of the inorganic part with the polymeric chain.•We prove the possibilities of the properties tailoring upon composition changes.•The conductivity, homogeneity and thermal stability are increased upon modification.•Changes in salt dissociation, and SEI properties lead to promising battery cycling.