Application of sol-gel processes to materials and interfaces in oxide-based all-solid-state batteries

All-solid-state batteries are an attractive proposal to achieve the demands for safe, efficient and high energy storage. This paper briefly discusses the current challenges in the field of all-solid-state batteries and how sol-gel routes can addressed them. The application of the sol-gel process for the synthesis of solid electrolytes is described, with special emphasis on solid oxide-type electrolytes. In this context, the use of sol-gel derived sintering additives is discussed. The sol-gel process involved in the fabrication of oxide-type all-solid-state battery is also described. Chemical strategies based on sol-gel technology to prepare cathode|electrolyte and anode-lithium metal|electrolyte interfaces with low interfacial resistance are described and contrasted with state-of-art literature. [Figure not available: see fulltext.]