Hydrated lithiumnido-boranes for solid–liquid hybrid batteries

Abstract

Metal boron-hydrogen salts are considered as promising solid-state electrolyte candidates for the development of solid-state batteries (SSBs). The presence of coordinated water in the crystal structure may facilitate the migration...

Stannaborates: tuning the ion conductivity of dodecaborate salts with tin substitution

“…Desolvation is known to have an effect on the ion conductivity of solid-state ion conductors. 14 S cm À1 at 150 1C) and slightly better than to KB 3 H 8 (2 Â 10 À7 S cm À1 at 150 1C). 12,40 The ion conductivity results for the stannaborates in comparison to other borate salts demonstrate that superionic conductivities are obtainable, but it is still difficult to predict which borate salts will present superionic conductivity at (or near) room temperature.…”

“…Desolvation is known to have an effect on the ion conductivity of solid-state ion conductors. 14 Thus, the ion conductivity for Li 2 B 11 H 11 Sn is lower than Li 2 B 11 H 11 Pb (2 × 10 −2 S cm −1 at 120 °C) 19 and LiCB 11 H 12 (2 × 10 −1 at 150 °C), 11 but does show a higher ion conductivity than the unsubstituted Li 2 B 12 H 12 above 110 °C. Na 2 B 11 H 11 Sn shows promise reaching 1 × 10 −3 S cm −1 at 170 °C, which is a large improvement in comparison to its contemporaries Na 2 B 11 H 11 Pb (1 × 10 −5 S cm −1 at 170 °C) 19 and the unsubstituted Na 2 B 12 H 12 (1 × 10 −4 S cm −1 at 170 °C).…”

“…These anions have been paired with different alkali metal cations such as lithium, sodium, and potassium and show excellent ionic conductivity performance at elevated temperatures, for example, Li 2 B 12 H 12 (8 × 10 −2 S cm −1 at 280 °C), Na 2 B 10 H 10 (2 × 10 −2 S cm −1 at 150 °C), and KB 11 H 14 (1 × 10 −4 S cm −1 at 150 °C). 11–14…”