Recently, stretchable and flexible solid polymer electrolytes (SPEs) are widely considered as promising materials for the development of next-generation flexible or bendable energy storage devices such as lithium ion batteries and supercapacitors. The main property required for the SPE is to simultaneously show high ionic conductivity and stretchability. Herein, we synthesize poly(acrylic acid) (PAA)-based SPE hydrogels containing lithium countercations and cross-linkable vinyl silica nanoparticles (VSNP) by one step radical polymerization under nitrogen atmosphere as shown in the photograph of Figure 1. The neutralization of PAA with lithium cations allows the SPE to be Li single-ion conductors, and the VSNP nanoparticles play a role in a control of the stretchability and strength of the SPE. The effect of the VSNP nanoparticle content on thermal, mechanical, and ion conduction properties is systematically investigated, using thermal gravimetric analysis, differential scanning calorimetry, dynamic mechanical analyzer, dielectric relaxation spectroscopy (See Figure 1).

Stretchable solid polymer electrolytes based on poly(acrylic acid) crosslinking with silica nanoparticles

2019 Spring National Meeting

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.