Insight Into Interfacial Properties of Energy Storage Batteries by SECM and Ultrasonics

Wei Wang^a, Tian Zhu^a, Jianping Luo^a, Bingchen Zou^a, Kangli Wang^b, Kai Jiang^b

^aState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China

^bState Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China

Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Spring 2024 Conference (MATSUS24)

#SUSEN - Advances in Green Energy Carriers

Barcelona, Spain, 2024 March 4th - 8th

Organizers: Ungyu Paik and Kangli Wang

Oral, Wei Wang, presentation 221
DOI: https://doi.org/10.29363/nanoge.matsus.2024.221
Publication date: 18th December 2023

Electrode interface is the important place of electrochemical reactions inside batteries, properties of which has an influence on performance and states of batteries. To obtain and precisely evaluate state of charge (SoC) and state of health (SoH) of the energy storage batteries, exploring reliable In-situ characterization techniques to monitor the interfacial electrochemical dynamics and properties variation should have significant importance. At present, applied interface characterization techniques are used to analysis the components and morphology, Scanning Electrochemical Microscope (SECM) is the only detection technique that can provide spatially resolved information of the kinetics of interfacial reactions [1,2], and ultrasonics is a nondestructive technique to locate interface based on differentiate acoustic impedance of polyphase system, which has been widely used in medical examination and diagnose. Some attempts of ultrasonics detection for batteries have also made recently [3,4].

Here in this work, SECM and an ultrasonic longitudinal wave reflection nondestructive testing technology was used for different mainstreamed secondary batteries like lithium-ion batteries, sodium-ion batteries, liquid metal batteries and aqueous zinc metal batteries.

References:

[1] F. M. Weber, I. Kohlhaas, E. Figgemeier, Basics of the scanning electrochemical microscope and its application in the characterization of lithium-ion batteries: a brief review, Molecules 2022, 27, 1737.

[2] R. He, L. Zhou, R. Tenent, M. Zhou, Long-Term Stability of Redox Mediators in Carbonate Solvents, Mater. Chem. Front.,2023, 7, 662.

[3] B. Sood, C. Hendricks, M. Osterman, M. Pecht. Health monitoring of lithium-ion batteries. Electronic Device Failure Analysis, 2014, 16(2): 4-16.

[4] A. G. Hsieh, S. Bhadra, B. J. Hertzberg, P. J. Gjeltema, A. Goy, J. W. Fleischer, et al. Electrochemical-acoustic time of flight: in operando correlation of physical dynamics with battery charge and health. Energy & Environmental Science, 2015, 8(5): 1569-1577.

Acknowledgements:

This work was financially supported by National Natural Science Foundation of China (No. 52177216, 52277217 and 52337009) .

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