Research on QCM-D in Energy Storage Electrode Materials for Performance Changes Caused by Ion Adsorption/Ion Induction
Professor Mikhael Levi, Baylan University, Israel

The journal Nature Materials (IF=38.891) recently reported the use of multi frequency EQCM-D to record the frequency and dissipation changes caused by different potentials, and created a new detection method using in-situ fluid dynamics spectra and quartz crystal admittance models, thereby achieving deformation tracking of composite electrodes at the mesoscale (Nature Materials 15, 570-575 (2016)).
In this online lecture, you will learn about:
The electrochemical dissipative quartz crystal microbalance technology (EQCM-D) is used to directly, economically, and sensitively measure the response changes per unit area during the charging and energy storage process of supercapacitors and electrodes.
How can the application of multi frequency EQCM-D technology track the deformation of composite electrodes at the mesoscale.
The correlation between electrochemical/mechanical properties and EQCM-D data is used in electrode preparation, testing, and modeling analysis processes.

date and time
Wednesday, June 29th, 2016
New York: 9am
Stockholm: 3pm
London: 2pm
Los Angeles: 6am
Beijing: 9pm
Click to enter the lecture registration address

If you miss this online conference, don't worry,min.wang@biolinscientific.comWe will send you the conference audio recording link.

summary
The potential induced ion adsorption in nanoporous carbon, especially the process of ion embedding into the pores of composite electrodes, is often accompanied by significant deformation of the molar volume, resulting in deformation of the composite electrode, including electrode active particles, conductive agents, and polymer binders. As the battery is charged and discharged, this deformation continues to cycle and intensify, causing partial damage or loss of electrode mechanical function.
Electrochemical dissipative quartz crystal microbalance technology (EQCM-D) is a combination of commercial QCM-D technology and electrochemical workstations, providing a fast, direct, economical, and highly sensitive testing method for studying the response changes per unit area during the charging and energy storage process of supercapacitors and electrodes. Multi frequency EQCM-D can record changes in potential, different harmonics, and dissipation, and can track the deformation of composite electrodes at the mesoscale using in-situ fluid dynamics spectra and corresponding quartz crystal admittance models (recently reported in Nature Materials 15, 570-575 (2016)).