Abstract The use of ion-conducting chalcogenide glass, a promising solid electrolyte, is encouraged at higher conductivity for all-solid-state rechargeable battery. Herein, a new quaternary glass of GaGeSbS–AgI system was successfully prepared, and its structural and electrochemical properties were investigated by XRD, Raman, and AC impendence measurement. The relatively high conductivity of 2.955 × 10−3 S/cm and low activation energy of 0.07 eV were obtained after optimized structure regulation. The short-range schematic of the glass structure was explored to determine the fast-migrating mechanism involved in conducting Ag+ ions. By controlling the proper ratio of Ga(Ge) and Sb cations, the loose and porous layer structure of [SbSxI3-x] linking by the [Ga(Ge)S4] tetrahedron was formed, resulting in the rapid transport of Ag+ ions with a reduced migration energy barrier. The current work is the first time that a sulfide solid electrolyte in quaternary glass system with desirable electrochemical characteristics was used to address energy and safety issues.

中文翻译：

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快速Ag离子导电GaGeSbS-AgI玻璃电解质的电导率和结构特性

摘要 离子导电硫属化物玻璃是一种很有前途的固体电解质，因其具有更高的电导率而被鼓励用于全固态可充电电池。在此，成功制备了新型 GaGeSbS-AgI 体系的四元玻璃，并通过 XRD、拉曼和交流阻抗测量研究了其结构和电化学性能。在优化结构调节后获得了 2.955 × 10-3 S/cm 的较高电导率和 0.07 eV 的低活化能。探索了玻璃结构的短程示意图，以确定传导 Ag+ 离子所涉及的快速迁移机制。通过控制 Ga(Ge) 和 Sb 阳离子的适当比例，形成 [SbSxI3-x] 由 [Ga(Ge)S4] 四面体连接的松散多孔层结构，导致 Ag+ 离子的快速传输，迁移能垒降低。目前的工作是首次使用具有理想电化学特性的四元玻璃体系中的硫化物固体电解质来解决能源和安全问题。