具有自钝化稳定性的单电解质全固态锂电池用高导电性银柱石电解质，这一成果由南京大学何平小组经过不懈努力而取得。相关论文于2025年12月4日发表于国际顶尖学术期刊《德国应用化学》杂志上。

在这项研究中，研究组设计了一种新型SSE， Li_5.5P_0.94Ta_0.06S_4.5Cl_0.75Br_0.75，具有双卤化物（Cl/Br）Ta⁵⁺取代以增强电导率和界面相容性。得到的SSE具有12 mS cm^-1的高离子电导率。1在室温下。受铝腐蚀钝化的启发，它形成原位自钝化界面层，确保对锂金属阳极和高压阴极的稳定性。含有这种电解质的电池在0.2C下循环200次后容量保持率达到100%，在0.5C下循环1200次后容量保持率超过81%。在高负荷下(30mg cm^-2)在N/P = 1.8条件下，循环150次后容量保持81%。一个10 × 6 cm²的袋状电池在200次循环后保持了96.4%的容量。这项工作为实现高性能、可扩展的ASSLBs提供了一条可行的途径，其主题是单一钝化电解质。

研究人员表示，全固态锂电池（ASSLBs）由于其增强的安全性和能量密度，是下一代储能的有希望的候选者。在固态电解质（SSEs）中，银矾型Li₆PS₅X化合物具有经济优势，但其离子电导率和电化学稳定性有限。

附：英文原文

Title: High-Conductivity Argyrodite Electrolyte with Self-Passivating Stability for Single-Electrolyte All-Solid-State Lithium Batteries

Author: Xin Wu, Lixin Liang, Bingxuan Du, Yiwen Liu, Zhenjie Zhang, Yu Shi, Shaochun Tang, Guangjin Hou, Haoshen Zhou, Ping He

Issue&Volume: 2025-12-04

Abstract: All-solid-state lithium batteries (ASSLBs) are promising candidates for next-generation energy storage due to their enhanced safety and energy density. Among solid-state electrolytes (SSEs), argyrodite-type Li6PS5X compounds offer economic advantages but suffer from limited ionic conductivity and electrochemical stability. In this study, we design a novel SSE, Li5.5P0.94Ta0.06S4.5Cl0.75Br0.75, featuring dual halide (Cl/Br) occupation and Ta5+ substitution to enhance conductivity and interfacial compatibility. The resulting SSE exhibits a high ionic conductivity of 12 mS cm1 at room temperature. Inspired by Al corrosion passivation, it forms in situ self-passivating interfacial layers, ensuring stability against both lithium metal anodes and high-voltage cathodes. Batteries incorporating this electrolyte achieved 100% capacity retention over 200 cycles at 0.2C, and over 81% retention after 1200 cycles at 0.5C. Under high-loading (30 mg cm2) and N/P = 1.8 conditions, 81% capacity was maintained after 150 cycles. A 10 × 6 cm2 pouch cell retained 96.4% of its capacity after 200 cycles. This work offers a viable route toward high-performance, scalable ASSLBs using a single-passivating electrolyte.

DOI: 10.1002/anie.202523225

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202523225