上海科技大学知识管理系统

With the increasing demand for storage devices with higher energy output and better safety performance, all-solid-state batteries show their potential to replace the traditional liquid-based Li-ion batteries in the future storage market. Garnet-type Li7La3Zr2O12 is one of the most attractive solid electrolyte materials because of its high ionic conductivity and stability to lithium metal. However, the large interfacial resistance originating from the insufficient solid-solid contact and the penetration of the lithium dendrite due to the inhomogeneous dissolution and deposition of lithium, hinder the all-solid-state batteries from developing. Focusing on the main interfacial problems in garnet-type all-solid battery, this review provides a fundamental understanding of the Li2CO3 issues in Li7La3Zr2O12 solid electrolyte and addresses the key factors influencing Li/Li7La3Zr2O12/cathode interfacial wettability and the growth of Li dendrite, thus giving the key factors of constructing ideal interfaces. Finally, the possible research direction of garnet-type all-solid-state battery in the future is also prospected, which provides a guidance for developing and using all-solid-state batteries.