Adding Intelligent Battery Management to Lead-Acid Energy Storage Systems

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  Determination of Battery Safety and Performance Parameters Using Adiabatic and Isothermal Calorimetry

  FREE Webinar – Thermal Hazard Technology is a proud sponsor of this event.

  This presentation describes two main types of calorimetry which can be used to carry out safety and performance testing on batteries. Isothermal calorimeters allow for direct heat measurement on cells during use, while adiabatic calorimeters can measure heat released from batteries during thermal runaway.

  Calorimetry can serve as a quantitative scientific method for evaluation of battery safety but it requires appropriate instrumentation. The principles of operation of both types of calorimeters are described along with specific applications within the field of battery testing.

  A combination of both technics allows for detailed thermal characterization of lithium-ion and other rechargeable cells, and differences due to chemistry, cell design, cell age, state of charge and cell size can be evaluated.

  This webinar will focus on the following key topics:

  • The principles of adiabatic and isothermal calorimetry
  • How calorimetry can be used in battery testing
  • Parameters established by adiabatic safety testing
  • Parameters established by isothermal performance testing
  • Pressure measurement and gas collection

  Presenter
  Danny Montgomery – Technical Performance Manager at Thermal Hazard Technology

  Danny Montgomery has worked at Thermal Hazard Technology for 9 years. His current role is Technical Performance Manager; overseeing the lab and technical aspects of instrumentation manufactured by THT. He joined the company in 2009 after graduating from Southampton University with a master’s degree in physics.

  Danny’s focus is primarily on lithium battery calorimetry; both adiabatic and isothermal. He oversees the use of calorimeters for customer sample testing as well as installing calorimeter systems and provided training for battery and automotive companies worldwide, such as Panasonic, BMW and Samsung. Danny works in Thermal Hazard Technology’s UK office in Milton Keynes.

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  Stability of Li7La3Zr2O12 Garnet Solid-State Electrolyte Against Metallic Lithium

  Energy storage demands will require safer, cheaper and higher performance electrochemical energy storage. While the primary strategy for improving performance has focused on state-of-the-art Li-ion batteries, this work seeks to develop solid-state batteries employing metallic Li anode. Recently, the ceramic electrolyte, Li7La3Zr2O12 (LLZO) cubic garnet, has shown promise owing to its unique combination of properties such as high Li-ion conductivity and electrochemical stability. Generally, LLZO is synthesized through powder processing and sintering at high temperature to produce dense membrane. Processing of the ceramic materials produces internal and surface flaws which will inhibit lithium transport creating localized current density and control the stability against Li dendrite propagation. This presentation will discuss new improvement in methodology to evaluate the integrity of LLZO membrane.

  This webinar will focus on the following key topics:

  • Methodology to evaluate the integrity of LLZO by identifying the microstructural flaws and their impact on mechanical properties
  • DC cycling, EIS, XPS will be shown to determine the reactions that govern the maximum current density
  • Correlate the electrochemical stability and critical current density with defects in polycrystalline solid state LLZO electrolyte

  Presenter
  Asma Sharafi – PhD Student with Jeff Sakamoto at University of Michigan

  Asma received her MS in Chemistry (material science) in 2013 at University of Georgia. Currently, she is a PhD student in Mechanical Engineering at University of Michigan under Jeff Sakamoto’s supervision. The primary focus of her research is on the development of new solid state electrolyte (SSE) with the garnet structure (Li7La3Zr2O12) that offer unprecedented safety and durability.

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  Energy Storage RTE Tutorial Course 3/3: Total Battery System RTE – Ranking and Comparison of Different Battery Chemistries

  RTE impacts of HVAC/Ventilation and Inverters will be described. Batteries generate heat, and this must be dissipated by system cooling and/or taken out of the system. Heat generated can be calculated by looking at IR heating and that generated (net) by exothermic reactions. Examples will include LFP, Li-NMC, Lead Acid and Nickel batteries, both when they are fresh, as well as at their end of useful life. The overall ancillary equipment energy usage will be listed for these systems, and a % RTE loss will be calculated for both nominal rate and high rate applications. Commentary will be provided for other systems. RTE will be summarized and ranked for most energy storage battery chemistries including ZA, NaS, LiS, Saltwater, Liquid Metal, Zinc Bromine and Fuel Cells.

  This webinar will focus on the following key topics:

  • RTE impacts of Inverters and HVAC
  • RTE impacts for ancillary equipment for different systems
  • RTE numbers for most battery systems being considered for energy storage

  Presenter
  Dr. Halle Cheeseman – Founder/President at Energy Blues LLC

  Dr. Halle Cheeseman earned a PhD in Electrochemistry & Corrosion from the University of Nottingham in UK, graduating in 1985. She has held several executive positions in the battery industry over the past 32 years, including Sr. VP of R&D at Spectrum Brands and VP of R&D at Exide Technologies. Her specific battery experience includes Lithium Ion, Zinc Air, Nickel Metal Hydride, Nickel Iron, Alkaline and Lead Acid, focusing on Consumer, Industrial, Automotive & Renewable Energy applications. In July 2017, Dr. Cheeseman founded Energy Blues LLC, an energy storage consulting cooperative comprising 20+ subject matter experts.

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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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