Influence of LiCl addition on the electrical conductivity of Li2O/B2O3/SiO2 glass system

Bond character, optical properties and ionic conductivity of Li2O/B2O3/SiO2/Al2O3 glass: Effect of structural substitution of Li2O for LiCl

“…Because of the higher electronegativity of the Cl À ions, the polarizability of lithium ions becomes strong. It has been also reported [29] that the higher the electronegativity of the halide ion, the higher is the polarizability of the antagonist ion [8,14]. This would increase the mobility of lithium ions and, in turn, the conductivity of the glasses increases from 1.6 Â 10 À3 X À1 m À1 (x = 0) to reach 1.9 Â 10 À2 X À1 m, as in case of 10 wt% LiCl.…”

“…The monotonically increase in ionic conductivity with LiCl doping which is followed by an observed decrease in sample 4 can be explained by the model of bond fluctuation [48]. In sample 4 the addition of more alkali halide increases the electronegativity gradually, creating so-called bottlenecks that hinder the motion of alkali ions and then reduce their mobility [8].…”

“…To improve Li + conductivity, the dissolve of LiCl into the oxide glass is proposed [8] where LiCl has a weak connection to the glass networks without affecting their local structure [9][10][11][12][13]. Such weak connection is important to obtain a high comparably average mobility.…”

Modeling Short-Range and Three-Membered Ring Structures in Lithium Borosilicate Glasses Using a Machine-Learning Potential

“…Boron-containing silicate glasses are widely used for a variety of products such as tableware, optical fibers, display glass, sealing glass, bioactive glass, , and nuclear waste glass because of their specific features such as high chemical durability, low thermal expansion coefficient, and high thermal shock resistance . Among them, lithium-containing borosilicate glasses are expected to play an important role in all-solid-state battery technologies − because of their flexibility, which enables a smooth connection between the electrolyte and electrode to suppress the interfacial resistance. − …”

Development of a force field for modeling lithium borosilicate glasses

“…It is known that the conductivity reaches a maximum at a specific ration of B$$_2$$O$$_3$$/SiO$$_2$$ as a result of the mixing effect of the network formers 14 . Furthermore, additional dopants, such as chlorine and bromine, improve the ion conductivity 16,17 . Because ion conductivity is affected by the constitutive units, such as the polymorph of BO$$_x$$ (x=3, 4), bridging oxygen, nonbridging oxygen, and so on, it is essential to know the microstructure of glass materials to enhance the performance of ASSBs in ionic conductivity.…”