All-solid-state sodium-ion batteries (ASSSIBs) are widely recognized as one of the most promising candidates for the next-generation of batteries, owing to their low cost and high safety. However, their commercialization progress has been impeded by interface problems, especially those related to the electrode/electrolyte interface. Thus, addressing the urgent problem of stabilizing the electrode/electrolyte interface for more stable operation is crucial. This review aims to comprehensively analyze in-depth the issues and solutions related to the electrode/electrolyte interface. Firstly, the fundamental requirement of the solid-state electrolyte (SSE) and the underlying mechanism of electrode/electrolyte interface problems are elucidated. Subsequently, the comprehensive analysis is conducted to identify the typical electrode/electrolyte interface problems and interface engineering methods based on the type of SSEs and electrodes. Finally, various suggestions and perspectives are proposed for the further development of advanced ASSSIBs.

全固态钠离子电池 (ASSSIB) 因其低成本和高安全性而被广泛认为是下一代电池最有希望的候选者之一。然而，它们的商业化进程一直受到界面问题的阻碍，尤其是那些与电极/电解质界面相关的问题。因此，解决稳定电极/电解质界面以实现更稳定运行的紧迫问题至关重要。本综述旨在全面深入地分析与电极/电解质界面相关的问题和解决方案。首先，阐明了固态电解质（SSE）的基本要求和电极/电解质界面问题的潜在机制。随后，基于SSE和电极的类型，进行综合分析以确定典型的电极/电解质界面问题和界面工程方法。最后，针对高级ASSSIB的进一步发展提出了各种建议和观点。