Showing 117–120 of 120 results

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    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

    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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    Challenges in Processing Large-Scale Sulfide-Based All-Solid-State Batteries

    Sulfide-based all-solid-state batteries are one of the most promising next generation energy storages. Especially the chlor-Argyrodite material Li6PS5Cl and ceramic sulfide Li7P3S11 are attractive solid electrolyte materials due to their high ionic conductivity. To date a lot of research in terms of material chemistry and cell design is presented in literature. From a production point of view, process parameter studies and process engineering are rarely addressed. To fabricate a thin-film sheet of the separator or composite cathode, conventional wet coating techniques from lithium-ion battery production can be applied, but processing has to be adapted to the properties of the sulfidic materials. Besides stable production atmospheres, the optimized processing is crucial to achieve the maximum possible energy density.

    This webinar will focus on the following key topics:

    • Changes in Manufacturing Processes from LIB to ASSB
    • Requirements for Stable Production Atmospheres
    • Choice of Process Parameters (Mixing, Coating, Drying)
    • Correlation between cell energy density and optimizing manufacturing processes

    Presenter
    Celestine Singer – Research Associate at TUMint. Energy Research GmbH

    Celestine Singer is a Research Associate and PhD Candidate for All-Solid-State Battery Production at TUMint. Energy Research GmbH. Previously, she studied Mechanical Engineering at RWTH Aachen, TU München in Germany and holds a M.Sc. degree.

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    R&D Pathways Towards High-Energy Liquid, Semi-Solid and Solid Li-Ion Batteries

    With our unique machine learning (ML)-supported innovation and patent analysis approach, we have made in-depth studies of emerging high energy positive & negative active materials, and how they can be combined with liquid, semi-solid or solid electrolytes to obtain improved performance / safety / cost profiles in EVs, consumer electronics, IoT, etc.

    This presentation will illustrate R&D pathways that are being pursued by key commercial players, identifying opportunities and risks of varying approaches.

    This webinar will focus on the following key topics:

    • High energy positive and negative electrode active materials
    • Combination with liquid, semi-solid and solid electrolytes
    • Opportunities and risks of different material permutations
    • Key commercial players pursuing varying approaches

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

    Pirmin Ulmann is co-founder and CEO of b-science.net, a battery innovation & patent monitoring service that is based on a novel machine learning approach. He obtained a diploma in chemistry from ETH Zurich (Switzerland) in 2004, and a PhD from Northwestern University (USA) in 2009. Thereafter, he was a JSPS Foreign Fellow at the University of Tokyo (Japan). From 2010 to 2016, while working at a major battery materials manufacturer in Switzerland, he was a co-inventor of 7 patent families on lithium-ion batteries. He holds the credential Stanford Certified Project Manager (SCPM), and has co-authored scientific publications with over 1,800 citations.

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    Battery Management System Impacts on Energy Storage

    Battery management systems impact the utility, effectiveness, and life of an energy storage system. Passive balancing is less expensive than active balancing, but weaker cells or modules may need to be replaced near the end of the ESS’s lifespan. Active balancing transfers energy from stronger to weaker cells, but at a higher system cost and design complexity.

    System down time is associated with both approaches and carries such a high opportunity cost that innovations in this area may be of greater importance than the type of balancing being employed.

    Join Nuvation Energy CEO Michael Worry for an exploration of the current state of the art in battery cell balancing, and how BMS innovations will impact the future of stationary energy storage.

    This webinar will focus on the following key topics:

    • A stationary ESS orientation on battery management
    • Understanding balancing-related down time
    • Comparing active and passive balancing
    • Innovations in battery management

    Presenter
    Michael Worry – CEO, Nuvation Energy

    Michael Worry founded Nuvation in 1997 and has grown the company into a thriving energy storage and engineering services firm with offices in Sunnyvale, California and Waterloo, Ontario Canada. He is the CEO and CTO of Nuvation Energy, a provider of energy controls and battery management solutions for large-scale energy storage. Part of Nuvation’s success is Michael still enjoys being a hands-on engineer and occasionally joins energy storage system installations at client sites.

    Nuvation Energy is a proud sponsor of this event.

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