Measurements That Accelerate Battery Development

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  Battery Selection Tutorial Course 1/3: Selecting your Cell and Cell Manufacturer(s)

  After designing your product, you need to ensure the battery with which you are operating it will ensure the right performance and lifetime. When deciding this, narrowing down which chemistry (e.g. Li-ion, lithium primary, NiMH, etc.) best fits your product and which form factor are some of the first steps. Choosing a cell design (high-power vs. high-energy, for example) is another step and finally, finding the right cell manufacturer to fabricate your cells and packs. This webinar is the first in a three-part series on designing the right battery for your product. It will cover many of the key differences in chemistries, form factors, and cell designs and other best practices.

  This webinar will focus on the following key topics:

  • Choosing the right chemistry for your application
  • Choosing the right form factor
  • Choosing cell designs (e.g. high power vs. high-energy)

  Presenter
  Exponent – a multidisciplinary engineering and scientific consulting firm with significant experience in various aspects of battery design, safety testing and failure analysis.

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  Electrochemical Impedance Spectroscopy and Its Application to Battery Analysis

  Electrochemical Impedance Spectroscopy (EIS) is a well-established experimental technique that has applications in coatings, corrosion, sensors, electrochemical double layer capacitors, batteries among others. The power of EIS partly comes from its ability to access a very wide range of frequencies (typically from MHz to μHz). For batteries, parameters such as the internal resistance, electrode surface capacitance and leakage are accessible at different frequencies across the spectrum. This allows EIS to gather all the relevant information with a single measurement. In this webinar, we will briefly introduce EIS and cover its application to batteries. We will talk about how to analyze typical data and how to gather the relevant information. We will further talk about available instrumentation and their limitations.

  This webinar will focus on the following key topics:

  • What is impedance spectroscopy?
  • What can impedance spectroscopy do for Battery analysis?
  • How can capacitance, internal resistance and leakage be determined using EIS?
  • What are the instrumental requirements and limits?

  Presenter

  Chris Beasley – Gamry Instruments

  Chris Beasley received a BS in Chemistry from Kutztown University in 2000 and got a PhD in electrochemistry from University of North Carolina at Chapel Hill in 2010. His doctoral dissertation was on using redox-active nanoparticles as supercapacitors. Chris joined Gamry Instruments in 2010.

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  Beyond Electrochemical Analysis – 2D to 4D Correlation of Microstructure and Chemistry in Li-ion Batteries

  Single imaging instruments as well as correlative microscopy workflows have demonstrated some unique abilities to support LIB research beyond electrochemical analysis methods. Light microscopy delivers insights about ablation effects & phase orientations in the active material, while scanning electron microscopy (SEM) reveals information about aging effects, nanometer cracks & the composition of the active material. Combining SEM with in-situ Raman spectroscopy extends the traditional SEM capabilities to organic and inorganic material identification. X-ray microscopy, furthermore, delivers 3D non-destructive imaging of full battery packs and localized high-resolution information, thus allowing the identification of regions of interest within the battery material volume. This presentation will demonstrate the application of these techniques to Li-ion battery research, including examples on anode, cathode, binder, and separator materials.

  This webinar will focus on the following key topics:

  • Introduction to available microscopic investigation techniques
  for Li-ion battery research:
  – Light Microscopy
  – Scanning Electron Microscopy
  – X-ray Microscopy
  – Raman Spectroscopy
  • Review of recent battery imaging studies in published literature
  • Case studies on using correlative microscopy to characterize battery performance & failure mechanisms

  Presenter
  Stefanie Freitag – Market Segment Manager at Carl Zeiss

  Stefanie is Market Segment Manager in Materials Research at Carl Zeiss Microscopy in Munich. She holds a Diploma in Engineering Physics, gained first work experiences in a nuclear fusion reactor with a pioneering concept in Greifswald, then worked 3 years in the solar industry in Ulm & Hsinchu, Taiwan. In her current position she analyzes and defines new microscopic solutions for specific materials segments including light microscopy, electron microscopy, x-ray microscopy and chemical methods like Raman spectroscopy.

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  Preventing Thermal Runaway in Energy Storage Systems (ESS)

  From air transportation to electric vehicles and most recently “Hover Boards”, our industry is painfully aware of the over-discharge malfunctions associated with high-energy lithium-ion batteries, yet according to recent studies, nearly 70% of all Energy Storage Systems currently deployed are lithium-ion. Avoiding the pitfalls of utilizing greater energy density in larger installations is what will be discussed. Michelle will walk through the recent innovations from materials and process tracking in battery manufacturing to comprehensive control of cells in a fully deployed system. Incorporating lessons learned from recent failure investigations by the NTSB and FAA as well as new DoE mandates, Michelle will discuss how to achieve and in some areas surpass the new emerging safety certifications for a multi-megawatt energy storage system.

  This webinar will focus on the following key topics:

  • Making batteries safe or making safe batteries? (control & mitigation)
  • Cell manufacture tracking, certification and response
  – NTSB & DoE analysis and current situation
  • Incorporating advanced battery management systems (BMS)
  – Active cell dynamic balancing
  – Cell replacement (hot-swapping)
  – System reconfiguration
  – Energy density scalability

  Presenter
  Michelle Klassen – VP of Business Development at Pathion, Inc.

  Michelle Klassen is VP of Business Development for PATHION Inc. which manufactures high-performance, safe, and reliable Energy Storage Systems (ESS) for commercial markets ranging from 86 kilowatt-hours in stand-alone systems to over 1 megawatt-hour in containerized units. Prior to PATHION, as Vice President at ZeroBase Energy, she led the design and implementation of power systems and micro-grids for customers, including the US Department of Defense, Kenya Ministry of Energy and the L.A. Department of Water and Power.

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