Recent progress in all-solid-state lithium batteries: The emerging strategies for advanced electrolytes and their interfaces

Abstract

With the development of lithium battery technologies, and the increasing demand for energy density and safety, all-solid-state lithium batteries (ASSLBs) have received more and more attention due to their potential to outperform conventional systems. Numerous investigations have been devoted from theoretical computations to experimental synthesis in recent years. A wealth of strategies to improve the performance of ASSLBs has been reported. Up to now, researchers are mainly focusing on the strategies to improve their compatibility in full-cell fabrication and conductivity at room temperature (RT). We are organizing a systematization of the emerging strategies for advanced electrolytes and their interfaces in this review on three aspects: i) chiefly summarize strategies toward constructing advanced solid-state electrolyte and improving the interfacial compatibility of batteries with the optimizations of every battery component, which are related to energy densities as well as rate densities; ii) review some integrated strategies for enhancing rate property; iii) illuminate concisely strategies toward coupling matched electrodes for long cycling. Based on the systematized strategies, some possible research directions, useful guidance and insights for the development of new strategies will be proposed by in-depth discussion and reasonable analysis.