TEESMAT Webinar series
TEESMAT project organises a series of webinars with the Service Providers presenting the validated characterization techniques and user cases.
WEBINAR 1 – Photoemission spectroscopy applied to storage energy material
The first TEESMAT webinar, titled ‘Photoemission spectroscopy applied to storage energy material’, was presented by the expert Dr. Anass Benayad, Ingénieur-Chercheur at CEA-LITEN.
The X-ray Photoelectron Spectroscopy (XPS) is a powerful analytical tool to study the electronic and chemical structure of materials at the surfaces and interfaces regions. The interest in this spectroscopy is continually growing in diverse fields of fundamental and experimental research. After a brief introduction, we present the contribution of photoelectron spectroscopy to the characterization of the chemical and electronic properties of materials for lithium and post-lithium ion batteries. The protocols developed through XPS and electrochemical characterization paved the way to improve our understanding of the phenomena of solid electrolyte interphase and redox process involved during battery operating. Through case studies, we will emphasize the contribution of XPS to TEESMAT European project.
Dr. Anass BENAYAD (HDR), is a senior expert at the department of nanomaterial and nanotechnology of CEA-LITEN at the Platform of Nanocharacterization (PFNC). He is developing new activities around photoemission spectroscopy in operando mode to study the redox process and electrolyte degradation mechanism in lithium ion batteries. From 2006 to 2013, he was a senior researcher at Samsung Advanced Institute of technology (SAIT), where he was in charge of different projects related to material engineering for battery electrodes. Dr. Anass BENAYAD, is author and co-author of more than 100 review papers and 12 patents.
WEBINAR 2 – In line quality control, digitalization and traceability of battery electrodes during all process steps
The second TEESMAT webinar, titled ‘In line quality control, digitalization and traceability of battery electrodes during all process steps’, was presented by the expert Ph.D Catalina Gutierrez, International Sales Engineer at IN-CORE Systèmes.
Involved in the battery inspection since 2005, IN-CORE has developed several tools installed on the production lines to control the quality of the electrodes. The quality inspection LineaVision, based on high accurate line sensors, controls 100% of the electrode’ surface on both sides and checks the product compliance with quality request. During the electrode manufacturing the most important is to check very precisely all geometrical parameters which influence directly the electrodes performances. By identifying the coating process drift in real time, LineaVision contributes to reduce waste, improve yield and therefore participates in manufacturing costs optimization. LineaTrack, installed in the coating line, is IN-CORE’ tool to serialize each individual electrode whatever the coating pattern by engraving the unique 2D code. This code, which is timestamped and broadcasted in the MES/ERP, is used to link all essential parameters to each individual electrode including the quality status given by LineaVision. This is what we call full digitalization solution perfectly customized to the electrodes manufacturing level. Digitalization is key to EU Li-ion battery industry to develop competitive, high quality battery manufacturing capacities, integrating the 4.0 industry concept.
Ph.D Catalina Gutierrez is an engineer with Ph.D in mechanics and manufacturing processes. With a multi-cultural background, she joined the sales team of IN-CORE Systèmes 4 years ago and has been handling with the technical and commercial requirements of the highly-demanding industries of Li-Ion Battery and High-Security Paper & Printing.
WEBINAR 3 – Non-Contact Sheet Resistance Measurement by Eddy Current
The third webinar, titled ‘Non-contact Sheet Resistance measurement by Eddy Current’, was presented by the expert Gabor Parada, Senior Application Scientist at Semilab.
Eddy current technique is a well established and widely used method in the semiconductor and solar industry to determine the resistivity of the bulk materials or bulk wafers and to measure sheet resistance of thin conductive films. The measurement is based on flow of AC current in a coil. Generated magnetic field induces circulating (Eddy) currents in the sample. The Eddy current measurement actually serves for obtaining of the electrical loss in the material.
Gabor Parada is a senior application scientist at Semilab Semiconductor Laboratory, Budapest, Hungary with more than 10 years experience in the field of developing measurement equipments for the semiconductor and solar industries as well as for the R&D labs. He led the development of resistivity, carrier lifetime, micro-spot LBIC, solar inspection and Hall measurement systems. He contributed many EU projects in the past providing novel metrology solutions for challenging tasks. Number of systems developed by him was commercialized and hundreds of them are used inline in leading semiconductor and PV factories12Within the TEESMAT project he built an experimental systems for the resistance analysis of metal layers for batteries with controlled environment.
WEBINAR 4 – X-ray nano-tomography & Hard X-ray total scattering for thorough battery investigations
The fourth webinar, titled ‘‘X-ray nano-tomography & Hard X-ray total scattering for thorough battery investigations’’, was presented by the experts Isaac Martens and Victor Vanpeene from ESRF – The European Synchrotron.
After a brief introduction of the TEESMAT project framework, the webinar was focused on two different characterization techniques available at the European Synchrotron Radiation Facility, which can be applied for energy related material analysis. X-ray nano-tomography (T8) and Hard X-ray total scattering (T13) can be used as complementary tools for deep and thorough investigation of batteries, respectively at the microstructural and crystallographic level. These techniques can provide ex situ/post mortem as well as in situ analysis capability. Their combined use provides detailed insight into aging mechanisms inside complex active materials.
Isaac Martens is an X-ray diffraction scientist and postdoctoral researcher in the Structure of Materials and X-ray Nanoprobe groups at the European Synchrotron Radiation Facility (ESRF) on beamlines ID-31 and ID-01. Isaac’s specialty is developing advanced characterization techniques, particularly in situ/operando tools to better understand the aging processes in electrochemical devices such as fuel cells and batteries His current position focuses on improving the accessibility of synchrotron analytical techniques towards the battery industry.
Victor Vanpeene is currently a postdoctoral researcher at the European Synchrotron Radiation Facility-ESRF (Grenoble, France). He obtained in 2019 his Ph.D. in energy and materials science conducted jointly at INRS-EMT and at the Institut des Sciences Appliquées de Lyon (INSA-Lyon, France). Previously he obtained his engineering degree in electrochemistry and materials science from INP-Phelma (Grenoble, France). Affiliated to the division of experiment, nano-probe analysis, his research focus on the nano-analysis technique for in situ monitoring the operation of a lithium based battery and other energy related devices. Additionally, one additional field of interest is the use of the X-ray fluorescence coupled with tomography as complementary analysis technique for battery characterization.