Tungsten Trioxide (WO3) Nanoparticles as a New Anode Material for Sodium-Ion Batteries.

Tungsten trioxide (WO3) is investigated for the first time as an anode material for sodium-ion batteries. Pristine WO3 displays a discharge potential plateau at 1 V and exhibits a 1st discharge cycle sodium storage capacity of 640 mAh g-1. Electronic wiring of WO3 with graphene oxide (GO, 1% by weight) led to a significant increase in the storage capacity and cyclability of WO3.

A Few Case Studies on the Correlation of Particle Network and Its Stability on the Ionic Conductivity of Solid-Liquid Composite Electrolytes.

We discuss here the crucial role of the particle network and its stability on the long-range ion transport in solid-liquid composite electrolytes. The solid-liquid composite electrolytes chosen for the study here comprise nanometer sized silica (SiO2) particles having various surface chemical functionalities dispersed in nonaqueous lithium salt solutions, viz. lithium perchlorate (LiClO4) in two different polyethylene glycol based solvents.