研究领域/方向

1.氧化物陶瓷基全固态锂金属电池

2先进陶瓷材料及烧结技术（半导体陶瓷、抗高温陶瓷材料、金刚石/铜复合体等）

3.多物理场有限元数值模拟

教育及工作经历

教师简介

徐谢宇博士于2025年3月加入西安交通大学材料学院表面教研室/PVD技术与装备创新团队，担任助理教授。博士毕业于俄罗斯莫斯科国立大学化学系/材料科学系，获得固体化学博士学位。徐谢宇博士长期致力于以硬质陶瓷基固态电解质为基础的全固态锂金属电池方向的研究，特别是在锂枝晶形核生长机制、高性能固态电解质陶瓷材料的合成制备以及固态电解质陶瓷材料的损伤断裂过程和机理等方向进行了深入系统的探索。近年来，徐谢宇博士以全固态锂电池为应用背景，研究了以Li_1+xAl_x(Ti/Ge)_2-x(PO₄)₃（LATP/LAGP）为代表的硬质陶瓷基固态电解质的表面和内部缺陷对于由锂枝晶所引发的损伤解体过程的影响以及缺陷之间的协同联动机制。徐谢宇博士系统研究了固态电解质微观晶粒尺寸，晶界连接区机械性能以及相对宽度对于此类陶瓷基固态电解质材料抵抗锂枝晶撕裂穿透能力的影响。徐谢宇博士也探索了此类固态电解质粉体的高品质可控合成以及高性能固态电解质陶瓷的优化烧结方法，进而实现全固态锂金属电池的平稳运行，取得了一系列创新性成果。徐谢宇博士已发表高水平论文50余篇，其中以第一作者/通讯作者发表Adv. Mater.（2篇）、Nano-Micro Lett.（2篇）、Adv. Energy Mater.（6篇）、Acta Mater.（1篇）、J. Eur. Ceram. Soc.（2篇）、Energy Storage Mater.（4篇）、Adv. Sci.（1篇）和J. Energy Chem.（4篇）等期刊论文22篇。截止至目前，共有2篇成果入选ESI热点论文（Hot paper），总计他引2700余次，成果多次被选为Adv. Energy Mater.等期刊封面文章，国际同行亦多次在Nat. Energy、Chem. Rev.和 Chem. Soc. Rev.等期刊上的实验、综述以及观点类文章中，对徐谢宇博士的发表成果进行报道引用并给予高度评价。

Dr. Xu Xieyu joined the Surface Engineering Laboratory/PVD Technology and Equipment Innovation Team of the School of Materials Science and Engineering at Xi'an Jiaotong University in March 2025 as an Assistant Professor. He received his Ph.D. in Solid State Chemistry from the Department of Chemistry/Materials Science at Moscow State University, Russia. Dr. Xu has long been dedicated to research on all-solid-state lithium metal batteries based on hard ceramic-based solid-state electrolytes, particularly exploring the lithium dendrite nucleation and growth mechanism, the synthesis and preparation of high-performance solid-state electrolyte ceramic materials, and the damage and fracture process and mechanism of solid-state electrolyte ceramic materials. In recent years, with all-solid-state lithium batteries as the application background, he has studied the influence of surface and internal defects of hard ceramic-based solid-state electrolytes, represented by Li_1+xAl_x(Ti/Ge)_2-x(PO₄)₃ (LATP/LAGP), on the damage and disintegration process caused by lithium dendrites, and the synergistic linkage mechanism between defects. He systematically studied the influence of solid-state electrolyte grain size, the mechanical properties of grain boundary junctions, and their relative width on the resistance of such ceramic-based solid-state electrolyte materials to lithium dendrite tearing and penetration. Dr. Xu has also explored the high-quality and controllable synthesis of such solid-state electrolyte powders and the optimized sintering methods for high-performance solid-state electrolyte ceramics, thereby achieving stable operation of all-solid-state lithium metal batteries and obtaining a series of innovative results. Dr. Xu has published more than 50 high-level papers, including 22 papers as the first author/corresponding author in journals such as Adv. Mater. (2 papers), Nano-Micro Lett. (2 papers), Adv. Energy Mater. (6 papers), Acta Mater. (1 paper), J. Eur. Ceram. Soc. (2 papers), Energy Storage Mater. (4 papers), Adv. Sci. (1 paper), and J. Energy Chem. (4 papers). To date, two of the Dr. Xu's papers have been selected as ESI Hot Papers, with a total of over 2,700 citations. The papers have been featured as cover articles in journals such as Adv. Energy Mater., and international peers have also reported on and highly praised the applicant's publications in experimental, review, and opinion articles in journals such as Nat. Energy, Chem. Rev., and Chem. Soc. Rev.

代表成果

科研项目：

留学基金委公派留学资助 2019.09-2024.05

教育部海外引才专项 2025.01-2027.12

陕西省科技择优资助项目 2026.01-2027.12  3万元

代表成果列表：

[1] Xu, X., Liu, Y., Kapitanova, O. O., Song, Z., Sun, J., & Xiong, S. (2022). Electro-chemo-mechanical failure of solid electrolytes induced by growth of internal lithium filaments. Advanced Materials, 34(49), 2207232.

[2] Xu, X., Kirianova, A. V., Evdokimov, P. V., Liu, Y., Jiao, X., Volkov, V. S., ... & Kapitanova, O. O. (2023). Li_1.3Al_0.3Ti_1.7(PO₄)₃ ceramic electrolyte fabricated from bimodal powder precursor. Journal of the European Ceramic Society, 43(14), 6170-6179.

[3] Xu, X., Jiao, X., Zhou, D., Yakovlev, I. I., Evdokimov, P. V., Liu, Y., ... & Kapitanova, O. O. (2024). Two-step sintering technique of LATP ceramic electrolyte with enhanced key parameters. Journal of the European Ceramic Society, 44(10), 5774-5781.

[4] Xu, X., Evdokimov, P. V., Volkov, V. S., Xiong, S., Jiao, X., Kapitanova, O. O., & Liu, Y. (2023). Internal failure coupled with interfacial disintegration of solid-state electrolyte induced by the electrodeposition of lithium metal under defected interface. Energy Storage Materials, 57, 421-428.

[5] Wang, X., Xu, X., Hou, W., Chen, Y., Yang, Y., Wang, Y., ... & Liu, Y. (2025). Electro-Chemo-Mechanical Design of Buffer Layer Enhances Electrochemical Performance of All-Solid-State Lithium Batteries. Advanced Energy Materials, 15(1), 2402731.

[6] Liu, Y., Xu, X., Jiao, X., Kapitanova, O. O., Song, Z., & Xiong, S. (2023). Role of interfacial defects on electro-chemo-mechanical failure of solid-state electrolyte. Advanced Materials, 35(24), 2301152.

[7] Xiong, S., Xu, X., Jiao, X., Wang, Y., Kapitanova, O. O., Song, Z., & Liu, Y. (2023). Mechanical failure of solid-state electrolyte rooted in synergy of interfacial and internal defects. Advanced Energy Materials, 13(14), 2203614.

[8] Jiao, X., Wang, Y., Xiong, S., Xu, X., Song, Z., & Liu, Y. (2024). Electro-chemo-mechanical failure of solid-state electrolyte caused from intergranular or transgranular damage propagation in polycrystalline aggregates. Acta Materialia, 265, 119607.

[9] Wang, A., Zhang, Q., Li, W., Zhang, K., Dong, C., Wang, Y., Xu, X., ... & Han, X. (2025). Electrochemical–Mechanical Evolution of Dendrites and Cracks in Na₃Zr₂Si₂PO₁₂ Ceramic Solid Electrolytes. Advanced Energy Materials, 2025, 15(36), e02156.