Webinars

(FREE) ENERGY ASSURANCE: Failure Analysis of Next Generation Si Based Anodes

Silicon (Si) is an attractive alternative to graphite due to its high theoretical capacity of 3500 mAh-g-1 and its high abundance on earth. Unfortunately, Si is plagued by significant volume expansion during charge/discharge, upwards of 300%. As a result, researchers and companies have focused their attention on mitigating the disadvantages of Si. With various methods the aim is to create a Si based anode that has a stability comparable or better then graphite. With increasing interest, it is important to discuss and determine abuse testing and failure analysis techniques that can effectively determine the durability of these new anodes.

This webinar will focus on the following key topics:

• Why is it important to look at alternative anodes to graphite?
• The advantages and disadvantages of Si based anodes
• Creation of new anodes to alleviate the disadvantages of Si
• Customized abuse testing and failure analysis of Si based anode cells

A PDF copy of the presentation will be sent to all attendees after the event.

Presenter
Emily Klein – Materials Scientist and Engineer at Energy Assurance

Emily Klein is a materials scientist and engineer at Energy Assurance. She earned her bachelor and master’s degrees in materials science and engineering at Georgia Institute of Technology (Georgia Tech). At Energy Assurance she supports clients with tailored abuse testing, cell and pack quality evaluations, and failure analysis. Prior to joining Energy Assurance, her research at the U.S. Naval Research Laboratory and Georgia Tech was focused on materials selection, performance testing, and safety testing for lithium-ion, solid-state systems, lithium metal systems, and alloy anodes.

Energy Assurance is a proud sponsor of this event.

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(FREE) MALVERN PANALYTICAL: Augment Your Battery Research With Non-Ambient In Operando XRD

Recently, in operando research on batteries with XRD system in room temperature has provided great understanding on the dynamic migration of the electrode materials during the charge cycle. However, a battery may work perfectly at ambient temperature, but actual environment may cause unexpected performance degradation and safety risks. To investigate battery stability under non-ambient conditions, we are introducing 2 variable temperature electrochemical cell (VTEC) battery stages with heating and cooling feature between -10°C and 70°C on the Empyrean XRD platform. In combination with comprehensive instruments control software and powerful data visualization and analysis tools made for large XRD datasets in HighScore Plus, we provide the most advanced in operando in situ solutions to accelerate your battery research.

This webinar will focus on the following key topics:

• Advanced non-ambient in operando studies on batteries with Empyrean XRD system
• Synergy amongst potentiostat, Empyrean and temperature controller
• Fully automated data analysis with HighScore Plus
o electrode phase identification and quantification
o crystal structure and defects analysis
o cluster analysis
o intuitive and powerful visualization tools made for in-operando experiments

A PDF copy of the presentation will be sent to all attendees after the event.

Presenter
Zhaohui Bao – Product Manager at Malvern Panalytical

Zhaohui obtained his Ph.D. in Materials Science and Civil Engineering from the University of Grenoble in France. He joined the XRD application team in Malvern Panalytical since 2012. He is currently working as the Empyrean product manager. His responsibility covers product marketing, sales enablement, product development, and other life cycle management on the Empyrean XRD system.

Malvern Panalytical is a proud sponsor of this event.

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SERMA: Combining Characterization Techniques for Supporting Development of Batteries

The complexity and scale of different physical-chemical processes inside batteries render any development to be strongly dependent on their proper description and monitoring, from nano-scale to the system-scale. Using different case studies solved by the TEESMAT platform, we will demonstrate how the combination of standard and advanced characterization techniques can support the development of new batteries. Among some examples, we will present:

– Probing the failure mechanisms of new ultra-capacitors
– Analyzing commercial Li-ion cells for envisaging a second life (safety)
– Understanding the copper oxidation phenomena during the fabrication process
– Quality control of electrodes
– Fine characterization of polymer based electrolyte for future Li-ion batteries

This webinar will focus on the following key topics:

• Complexity of electrochemical energy storage systems
• Efficient characterization tools – from nano-scale to pack size
• Case studies on full value chain – material level, electrochemical mechanisms, production processes, safety, and increased device performance

A PDF copy of the presentation will be sent to all attendees after the event.

Presenter
Cyril Marino, PhD – Project Leader at Serma Technologies

Dr. Cyril Marino obtained a PhD on material science about the understanding of electrochemical phenomena for the conversion materials used as negative electrode for Li-ion batteries at Université Montpellier 2 (France) in 2012. He was pursuing in the field of research with one assistant professor position at Technische Universität München (Germany) and one scientist position at Paul Scherrer Institut to work on the understanding of high voltage cathode materials for Li-ion batteries and the development of Na-ion batteries. He joined Serma Technologies in March 2019 as electrochemical energy storage systems Expert and is the TEESMAT project leader at Serma.

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PURDUE UNIVERSITY: Electrode Damage Characterization in Li-Ion Batteries Using Raman Spectroscopy

While Li-Ion battery technology has continually advanced to provide cells that are smaller and more powerful, compromised safety concerns due to physical damage are always present. Physical damage to a Li-Ion battery can significantly affect its operational performance, causing accelerated degradation and capacity fade. Damage to electrodes and removal of active material lead to microstructural changes in electrode material and unbalanced current distribution, causing polarization in cells. This work focuses on characterizing the effects of partial nail penetrations on electrodes in cells that continue cycling after being damaged by using Raman spectroscopy and incremental capacity analysis. This helps to determine the type and extent of damage to the electrodes over the course of their abbreviated lifetime.

This webinar will focus on the following key topics:

• Dynamic impact testing of prismatic Li-Ion cells
• Raman spectroscopy analysis for anode damage characterization
• Increased polarization due to unbalanced current distribution
• Accelerated degradation caused by physical damage
• Incremental capacity analysis to determine mechanisms of aging

A PDF copy of the presentation will be sent to all attendees after the event.

Presenter
Casey Jones – Ph.D. Candidate at Purdue University

Casey Jones is a PhD student in the School of Aeronautics and Astronautics at Purdue University, where he works in the Interfacial Multiphysics Laboratory for Dr. Vikas Tomar. His research focuses on destructive testing of Li-ion batteries and the characterization of the effects on cell operation and is funded by the Office of Naval Research. Prior to studying at Purdue he served in the US Navy as a nuclear electronics technician aboard a fast-attack submarine based in Pearl Harbor, and received his BS in Mechanical Engineering from the University of Hawai’i at Manoa.

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