Synchrotron spectroscopy imaging of interphases for batteries development

Jigang Zhou^1*

¹R&D, General Motors, Warren, USA
²Department of Physics, Tamkang University, New Taipei City, Taiwan

* Presenter:Jigang Zhou, email:jigang.zhou@gm.com

Jigang Zhou1, Hsiao-Tsu Wang2
1 General Mortars BRD USA , 2 Tamkang University, Taiwan
Interphases in advanced battery play crucial roles in dictating safety, life and rate performance, all of which are closely related to battery’s successful application in EV and energy storage. Synchrotron spectroscopy imaging including scanning transmission X-ray microscopy (STXM) and photon emission electron microscopy (PEEM) has unique characterization capability in terms of elemental selection, chemical sensitivity and operando measurements. In this talk I will present our recent STXM and PEEM characterization of interphases in lithium ion1-2 and sodium ion battery3 and structure-battery performance relationship.
References:
1 J Zhou, H Wang, et al, Nanoscale-Resolved STXM Reveals Shell π-Type Superexchange for Enhancing High-Voltage Stability in Surface Al-Doped LMR Cathodes, ACS Applied Mater and Interphase, under review.
2 J Zhou, et al, Visualization of Thermal-Induced Degradation Pathways of High-Ni Cathode: a Comparative Study in Solid Chloride and Liquid Electrolytes, Adv Mater. 10.1002/adma.202510392
3 J Zhou, et al, Pinpointing Chemomechanical Origins of Na Cathode Degradation, J. Am. Chem. Soc. 2025, 147, 21375−21384

Keywords: battery, interface, spectroscopy, imaging