


However, for successful incorporation of metal hydride electrolytes in all-solid-state batteries, sufficient ionic conductivity at room temperature is a prerequisite. LiBH 4 and LiCB 11H 12) have gained attention as promising solid electrolytes due to their electrochemical and thermal stability, low density and high ionic conductivity albeit at elevated temperatures. All-solid-state batteries, in which the common liquid organic electrolyte is replaced by a solid-state electrolyte, could potentially lead to safer batteries with increased energy density. Unfortunately, Li-ion batteries suffer from safety issues arising from their combustible organic electrolytes. Lithium-ion batteries are an effective means of energy storage, which is demonstrated by their wide application ranging from mobile phones to laptops and electric vehicles. The development of energy storage technologies, such as rechargeable batteries, is crucial for the transition to a sustainable energy supply.
