Electrochemistry

Showing 1–10 of 55 results

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    Passive Mitigation of Thermal Runaway Propagation in Dense 18650 Lithium Ion Cell Assemblies

    Utilization of lithium ion batteries (LIBs) in various applications has been growing exponentially. LIBs offer some distinct advantages including high energy density, outstanding efficiency, long lifespan, and fast charging capability. Probably, the main disadvantage of LIBs is that a small deviation from normal operating condition may result in rapid self-heating accompanied by ejection of large quantities of flammable materials, which can cause fire or explosion. The failure process becomes more dramatic when many cells are arranged in large arrays in order to fulfill the power requirements by most of applications. Failure of a single cell can release sufficient energy to trigger failure into adjacent cell, which subsequently propagates throughout the entire array. In this webinar, a set of passive strategies to mitigate failure propagation will be presented. The dynamics, heating rates, gaseous emissions, and energetics of thermally induced thermal runaway propagation in dense arrays consisting of 12-15 fully charged 18650 lithium ion cells have been quantified to determine the effectiveness of these passive mitigation strategies.

    This webinar will focus on the following key topics:

    • Thermal runaway in lithium ion batteries
    • Thermal runaway propagation in lithium ion battery packs
    • Hazards associated with failure propagation
    • Passive mitigation strategies

    Presenter
    Ahmed Said – Postdoc Fellow, Worcester Polytechnic Institute

    Ahmed Said is a post-doctoral fellow in the Department of Fire Protection Engineering at Worcester Polytechnic Institute. He Obtained his PhD from the Department of Mechanical Engineering at the University of Maryland, College Park, in 2020. He is broadly interested in fire and combustion science problems. More specifically, his research is centered on thermal and fire safety of energy storage systems, material flammability, fire spread on façade systems, and wildland fires.

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    Fundamentals of Electrochemical Impedance Spectroscopy and Application to Li-Ion Batteries

    Electrochemical Impedance Spectroscopy (EIS) is a high-information content technique that provides insight into complex systems. EIS has gained tremendous popularity since innovation with the line of Frequency Response Analyzers from Solartron Analytical – but remains intimidating to many users. Join this webinar to gain confidence in your understanding of the technique itself and its application to the Li-Ion battery activity chain. EIS is used to: 1.) study diffusion characteristics and SEI formation during material development, 2.) identify degradation modes, ESR, State-of-Charge during cell characterization, and 3.) rapid grade State-of-Health during modules evaluation.

    This webinar will focus on the following key topics:

    • Fundamentals of data acquisition and data analysis of EIS
    • How EIS theory is applied in practice by beginners and experts
    • The value of EIS as a tool in evaluation of Li-ion batteries
    • How AMETEK’s portfolio meets uniquely defined needs at different points of the value chain

    Presenter
    Rob Sides – Applications Architect at AMETEK

    Rob Sides presents here as part of AMETEK, a global enterprise supporting electrochemical research through its Princeton Applied Research and Solartron Analytical brands. He joined AMETEK after achieving his Ph.D. from University of Florida in 2005, where he authored several original research papers, presentations, invited reviews and book chapters on the fabrication and characterization of Li-ion battery electrodes using DC and EIS-based methods. At AMETEK, Rob has held several roles across different functional groups of Applications, Sales/Marketing and Product Management. His background provides a depth and breadth of experience to present both fundamentals and solutions to the most challenging problems.

    AMETEK is a proud sponsor of this event.

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    The Role of All-Solid-State Batteries for Grid Energy Storage

    All solid-state batteries (ASSBs) are widely believed to be a promising technology for next-generation energy storage. While Li-ASSBs are slated to serve the electric vehicles market, Na-ASSBs are a promising technology for electrical grid storage due to their lowered costs and longevity. Prevailing obstacles to commercialization include poor cathode interfacial stability, and the lack of a robust sodium anode, in addition to low areal capacities. In this webinar, we will discuss design strategies to enable stable interfaces, as well as utilize sodium alloy-based anodes to enable ASSBs with higher energy densities, longer cycle life, and longer calendar life.

    This webinar will focus on the following key topics:

    • State-of-the-art Na solid-state batteries and their role for grid energy storage applications
    • Low cost, novel solid electrolytes enabling long cycle life via interface stabilization
    • Na alloy-based anodes eliminating dendrite formation and enabling wide temperature operation
    • Processing considerations to achieve high areal capacities for high energy densities

    Presenters
    Darren H. S. Tan – Co-Founder at UNIGRID LLC
    Dr. Erik A. Wu – CTO at UNIGRID LLC

    Darren H. S. Tan is a Co-Founder of UNIGRID LLC, an energy storage company based on cutting edge ASSB technologies. He is a PhD candidate leading the ASSB research work at UC San Diego at the Sustainable Power and Energy Center (SPEC).

    Dr. Erik A. Wu is the Chief Technology Officer of UNIGRID LLC, where he leads the development of Na-ASSBs for large scale grid energy storage applications, and is a recent alumnus of the Laboratory of Energy Storage and Conversion at UC San Diego.

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    Characterizing Catalytic Inks for Fuel Cells

    Catalytic inks are key components when balancing cost, performance, and durability of proton exchange membrane fuel cells (PEMFC’s). Scaling up PEMFC production requires careful control of the ink to produce uniform electrode layers that use as little precious metal catalyst as possible. Particle size and dispersion critically impact the behavior of the ink and resulting performance of the electrode layers. X-ray diffraction, laser diffraction, dynamic light scattering, and X-ray fluorescence are characterization techniques with proven ability to scale-up in support of mass production that, when combined, provide a comprehensive overview of the particles in catalytic ink mixtures.

    This webinar will focus on the following key topics:

    • X-Ray Diffraction
    • Laser Diffraction
    • X-Ray Fluorescence
    • Dynamic Light Scattering

    These techniques each probe a different size regime and, when combined, provide a comprehensive overview of the particles in the catalytic ink mixture.

    Presenter

    Scott A Speakman – Principal Scientist at Malvern Panalytical

    Scott A Speakman obtained his Ph.D. studying fuel cell materials at Alfred University. He completed a post-doctoral appointment at Oak Ridge National Lab, splitting time between supporting the High Temperature Materials Lab user program and researching fuel cell materials in EERE and FE programs. Scott then managed the X-ray Shared Experimental Facility at MIT for 8 years before joining Malvern Panalytical as a principal scientist. Scott A Speakman is a Fellow of the International Center for Diffraction Data and recipient of a 2013 Infinite Mile Award for exceptional service to MIT.

    Malvern Panalytical is a proud sponsor of this event.

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    Solid-State Li-Ion Batteries – Key Technology Approaches & Time-to-Market

    Attendees will learn which solid-state batteries have been launched already into beachhead markets, and which technology barriers for now prevent deployment in mass EV applications. Risks & opportunities identified in IP portfolios by large battery & automotive manufacturers and key startups will be compared with go-to-market & technology readiness statements. Finally, we will explain why hybrid battery packs or cells based on both liquid and solid electrolytes could potentially accelerate the automotive adoption of solid-state batteries.

    This webinar will focus on the following key topics:

    • Solid-state Li-ion batteries
    • Key innovation approaches & global patent literature
    • Time-to-market with respect to key applications: electronics/IoT, medical implants, automotive/rolling stock, stationary energy storage
    • Examples of solid electrolyte, cathode & anode selection
    • Combination of solid electrolytes with liquid electrolytes at the pack or cell level

    Presenter
    Dr. Pirmin Ulmann – Co-Founder & CEO, B-Science.net

    Dr. Pirmin Ulmann is co-founder and CEO of b-science.net, an information service for the battery patent literature that is based on a supervised machine learning approach. Pirmin obtained a diploma in chemistry from ETH Zurich (Switzerland) in 2004 and a PhD from Northwestern University (USA) in 2009, followed by a postdoc at Tokyo University (Japan). From 2010 to 2016, while working at a major Li-ion battery materials manufacturer, he was a co-inventor of 7 patent families. He holds the credential Stanford Certified Project Manager and has co-authored scientific publications with more than 1,500 citations.

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    EIS for Energy Storage Tutorial Course 1/3 – Basics of Electrochemical Impedance Spectroscopy

    The theoretical principles of Electrochemical Impedance Spectroscopy (EIS) are given. Details on what is being measured and which information it gives on the studied system are also explained. Some elements will be given on how an EIS measurement is performed from an instrumental point of view. Finally, the requirements that EIS must fulfill are presented.

    This webinar will focus on the following key topics:

    • What is an EIS measurement?
    • Which information do we get from this measurement?
    • How is it performed?
    • Which requirements should it fulfill?

    Presenter
    Dr. Nicolas Murer – Product Manager and Applications Engineer at Bio-Logic SAS, France

    Nicolas Murer is an application and product manager at Bio-Logic Science Instruments. Bio-Logic designs and manufactures potentiostats/galvanostats, battery cyclers and scanning probe electrochemical workstations.

    He received his engineer diploma from Polytechnic Institute of Grenoble in electrochemistry and materials in 2003. He then received his Ph.D. at Université de Bourgogne in 2008. Prior to joining Bio-Logic in 2011, he was a post-doc at the Ohio State University, Columbus.

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    EIS for Energy Storage Tutorial Course 2/3 – How to Perform Good and Reliable EIS Measurements

    Electrochemical Impedance Spectroscopy (EIS) is a powerful technique, but it might be difficult to know which parameters to set as it really depends on the studied system. We give a few guidelines and tools needed to set the right amplitude, as well as other experimental parameters of interest that can increase the accuracy and the reliability of your measurement.

    A discussion will be given about when and whether to choose between potentio-controlled or galvano-controlled EIS.

    Finally, we will give recommendations on the conditions that the system under study should fulfill, especially time-variance, with some examples on the effect it has on impedance data and how to correct them.

    This webinar will focus on the following key topics:

    • How to choose the amplitude of the input signal?
    • How to choose between PEIS and GEIS?
    • What do I need to check on my system?

    Presenter
    Dr. Nicolas Murer – Product Manager and Applications Engineer at Bio-Logic SAS, France

    Nicolas Murer is an application and product manager at Bio-Logic Science Instruments. Bio-Logic designs and manufactures potentiostats/galvanostats, battery cyclers and scanning probe electrochemical workstations.

    He received his engineer diploma from Polytechnic Institute of Grenoble in electrochemistry and materials in 2003. He then received his Ph.D. at Université de Bourgogne in 2008. Prior to joining Bio-Logic in 2011, he was a post-doc at the Ohio State University, Columbus.

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    EIS for Energy Storage Tutorial Course 3/3 – Application Examples in Energy Storage Taken From The Literature

    This presentation will give some examples of applications of EIS to various types of energy storage – for example, intercalation batteries (LFP, LCO, NiCd, NiMH etc.), lead acid batteries, and redox flow batteries. The examples are taken from research literature. The review will not be exhaustive, but it will provide examples that are considered relevant. For each application, some elements of comparison between EIS and DC methods will be given.

    This webinar will focus on the following key topics:

    • Examples in insertion batteries
    • Examples in lead acid batteries
    • Examples in redox flow batteries
    • Examples in supercapacitors
    • Comparison with DC methods

    Presenter
    Dr. Nicolas Murer – Product Manager and Applications Engineer at Bio-Logic SAS, France

    Nicolas Murer is an application and product manager at Bio-Logic Science Instruments. Bio-Logic designs and manufactures potentiostats/galvanostats, battery cyclers and scanning probe electrochemical workstations.

    He received his engineer diploma from Polytechnic Institute of Grenoble in electrochemistry and materials in 2003. He then received his Ph.D. at Université de Bourgogne in 2008. Prior to joining Bio-Logic in 2011, he was a post-doc at the Ohio State University, Columbus.

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    All Solid-State Batteries and the Future of Energy Storage

    The development of all solid-state batteries (ASSBs) has seen tremendous progress in recent years. However, several barriers still need to be overcome before ASSBs can be commercialized. These obstacles include poor interfacial stability, scalability challenges as well as the difficulty to precisely diagnose problems within the cell. Additionally, efforts to develop sustainable recyclability in lithium ion batteries are still lacking. In this webinar, we discuss SSEs chemistries and its implications on interfacial stability. We also cover the current state-of-the-art characterization techniques and evaluate future ASSB prototyping strategies. Finally, we hope to discuss potential strategies toward a sustainable ASSB recycling model to address the growing lithium ion battery waste problem.

    This webinar will focus on the following key topics:

    • Overview of solid-state batteries and solid-state electrolyte research
    • Importance of interfacial stability – correlate chemical, electrochemical and mechanical-induced reactions
    • Challenges for diagnosis / characterization of buried interfaces and lithium dendrites
    • Scalable fabrication considerations of commercialized all-solid-state batteries
    • Sustainability – Battery recycling concerns of Cost, Efficiency and the Environment

    Presenters
    Dr. Y. Shirley Meng – Professor at University of California San Diego
    Darren Tan – Founder and CTO at Unigrid Pte. Ltd.

    Dr. Y. Shirley Meng holds the Zable Endowed Chair Professor in Energy Technologies and is professor in NanoEngineering at UC San Diego. Shirley is the principal investigator of the research group – Laboratory for Energy Storage and Conversion (LESC). She is the founding Director of Sustainable Power and Energy Center (SPEC).

    Darren Tan is a founder and CTO of Unigrid Pte. Ltd. He is also a Chemical Engineering PhD student working at UC San Diego with the LESC group.

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    Will Lithium-Sulfur Batteries be Part of the Future of Energy Storage?

    Lithium-sulfur batteries can displace lithium-ion by delivering higher specific energy at a lower cost. Presently, however, the superior energy performance fades rapidly due to instability issues of the electrodes and the electrolyte. Extensive research and considerable progress over the past ten years have solved the instability issue of the sulfur electrode to a large extent. However, the formidable challenges of the more difficult electrode, lithium metal, (safety and cyclability) are yet to be resolved. Therefore, Lithium-Sulfur battery research programs should have at their heart, stabilizing the lithium electrode, as addressing it is predicted to ensure a rapid transition to commercial level life-spans. After all, the highest specific energy can be achieved by battery chemistries that utilize lithium metal as the negative electrode.

    This webinar will focus on the following key topics:

    • What’s so good about sulfur?
    • Great capacity brings great stress!
    • Will we see the revolutionary return of Lithium metal?
    • Electrolyte challenges (we need too much of it but it’s heavy!)
    • Current status and future prospects

    Presenter
    Dr. Mahdokht Shaibani  – Research Fellow at Monash University

    Dr. Mahdokht Shaibani  has expertise in materials synthesis, engineering, and scale-up for next-generation energy storage systems including lithium-sulfur batteries, silicon anodes, flow batteries, supercapacitors, and lithium-ion capacitors. She has conducted research in developing expansion-tolerant architectures for high capacity electrodes such as sulfur and silicon, fabrication of separators, synthesis of graphene and carbon materials for supercapacitors, and exploring the use of lithium-sulfur batteries for more sustainable and clean transportation and grid storage. Mahdokht has a PhD in Mechanical Engineering, with a focus on energy storage from Monash University, Australia.

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