%0 Journal Article %A Yan, Yigang %A Kühnel, Ruben-Simon %A Remhof, Arndt %A Duchêne, Léo %A Reyes, Eduardo Cuervo %A Rentsch, Daniel %A Lodziana, Zbigniew %A Battaglia, Corsin %T A Lithium Amide-Borohydride Solid-State Electrolyte with Lithium-Ion Conductivities Comparable to Liquid Electrolytes %J Advanced Energy Materials %@ 1614-6832 %P 1700294 %D 2017 %K all-solid-state lithium-ion batteries %K complex hydrides %K solid-state electrolytes %U http://doi.wiley.com/10.1002/aenm.201700294 %R 10.1002/aenm.201700294 %X High ionic conductivity of up to 6.4 ×10−3S cm−1 near room temperature (40 °C) in lithium amide-borohydrides is reported, comparable to values of liquid organic electrolytes commonly employed in lithium-ion batteries. Density functional theory is applied coupled with X-ray diffraction, calorimetry, and nuclear magnetic resonance experiments to shed light on the conduction mechanism. A Li4Ti5O12 half-cell battery incorporating the lithium amide-borohydride electrolyte exhibits good rate performance up to 3.5 mA cm−2 (5 C) and stable cycling over 400 cycles at 1 C at 40 °C, indicating high bulk and interfacial stability. The results demonstrate the potential of lithium amide-borohydrides as solid-state electrolytes for high-power lithium-ion batteries.