Dr. Xin Xu is an assistant professor in The Polytechnic School at Arizona State University. He is also a member of the graduate faculty in both the System Engineering Program within the School of Manufacturing Systems and Networks, and the Materials Science and Engineering Program within the School for Engineering of Matter, Transport, and Energy at ASU.
He completed his B.S. in Physics from Nanjing University in 2014, and his Ph.D. in Applied Physics from Northwestern University with Prof. Sossina Haile in 2019. From 2015 to 2019, he received transmission electron microscopy training at Argonne National Laboratory with Dr. Charudatta Phatak and Dr. Amanda Petford-Long. His doctoral work focused on developing local multimodal methods to understand the charge transport mechanism at grain boundaries in electroceramics. In 2019, he joined the Department of Materials Science and Engineering at Stanford University as a postdoctoral scholar with Prof. William Chueh to study failure mechanisms in solid-state batteries through operando dynamic approaches. His research interests focus on developing a fundamental understanding of charge transport and the related electro-chemo-mechanics in mixed electronic and ionic materials to address energy and environmental challenges.
2014-2019, Ph.D., Applied Physics, Northwestern University
2010-2014, B.S. with Honors, Physics, Nanjing University
Xu’s research interests focus on charge transport, solid-state batteries and next-generation clean energy technology. Primarily, he delves into the fundamental understanding of charge transport behavior in energy materials and failure mechanism in electrochemical processes. This encompasses a broad class of renewable energy storage and conversion systems such as batteries and fuel cells, with research areas including charge transport theory, dynamic characterization, and scalable device fabrication.
Notes: † indicates equal contributors; * indicates corresponding authors
Yinxing Ma†, Jiayu Wan†, Xin Xu†, Austin Sendek, Sarah Holmes, Brandi Ransom, Zhelong Jiang, Pu Zhang, Xin Xiao, Wenbo Zhang, Rong Xu, Fang Liu, Yusheng Ye, Emma Kaeli, Evan Reed*, William Chueh*, Yi Cui*. “Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li6+2x[B10S18]Sx (x ≈ 1)”. ACS Energy Letters, 8, 2762-2771 (2023)
Geoff McConohy†*, Xin Xu†*, Cui Teng†, Edward Barks, Sunny Wang, Emma Kaeli, Celeste Melamed, X. Wendy Gu, William Chueh*, “Mechanical regulation of lithium intrusion probability in garnet solid electrolytes”. Nature Energy, 1-10 (2023), Cover Article. DOI:10.1038/s41560-022-01186-4
Peter M. Csernica, Samanbir S. Kalirai, William E. Gent, Kipil Lim, Young-Sang Yu, Yunzhi Liu, Sung-Jin Ahn, Emma Kaeli, Xin Xu, Kevin H. Stone, Ann F. Marshall, Robert Sinclair, David A. Shapiro*, Michael F. Toney* & William C. Chueh*. “Persistent and partially mobile oxygen vacancies in Li-rich layered oxides”, Nature Energy, 6, 642-652 (2021). DOI: 10.1038/s41560-021-00832-7
Xin Xu*, Connor Carr, Xinqi Chen, Benjamin D. Myers, Ruiyun Huang, Weizi Yuan, Sihyuk Choi, Dezhi Yi, Charudatta Phatak, Sossina Haile*. “Local Multimodal Electro-chemical-structural Characterization of Ionic Grain Boundaries”, Advanced Energy Materials, 2003309 (2021). DOI: 10.1002/aenm.202003309
Xin Xu, Yuzi Liu, Jie Wang, Dieter Isheim, Vinayak P. Dravid, Charudatta Phatak, and Sossina M. Haile*. “Variability and Origins of Grain Boundary Electric Potential Detected by Electron Holography and Atom-probe Tomography”, Nature Materials, 19, 887893 (2020). DOI: 10.1038/s41563-020-0656-1
Xin Xu†*, Frank Barrows†*, Vinayak P. Dravid, Sossina Haile, Charudatta Phatak*, “Quantifying Leakage Fields at Ionic Grain Boundaries using Off-axis Electron Holography”, Journal of Applied Physics, 128(21), 214301 (2020). DOI: 10.1063/5.0031233
Ho-Il Ji, Xin Xu, and Sossina M. Haile*. “Chemical Surface Exchange of Oxygen on CeO2− δ in an O2/H2O Atmosphere”, Physical Chemistry Chemical Physics. 19, 29287–29293 (2017). DOI: 10.1039/c7cp05969h
- Invited Talk: “Uncover Transport, Mechanics and Failure in Electroceramics through Atomic and Dynamic Visualization”, Department of Materials Science & Engineering, Clemson University, 05/2023
- Invited Talk: “Understanding and Design of Failure Mechanics and Charge Transport in Solid Electrolytes for Clean Energy Technologies”, Ira A. Fulton Schools of Engineering, Arizona State University, 03/2023
- Invited Talk: “Mechanical Regulation of Lithium Intrusion Probability in Garnet Solid Electrolytes”, Center for Advanced Materials Characterization, University of Oregon, 03/2023
- Invited Talk: “Uncover Transport, Mechanics and Failure in Electroceramics through Atomic and Dynamic Visualization”, Department of Materials Science and Engineering, University of California, Davis, 02/2023
- Invited Talk: “Explore Ionic Grain Boundaries by Local Multimodal Method”, Young Scholar Colloquium, Journal of Materials Today Nano, 12/2020
2019-2023, Postdoc, Materials Science and Engineering, Stanford University
Journal Reviewer: Journal of Materials Chemistry A, ACS Nano, Materials Today Energy, Journal of Applied Physics, Material Advances