G-LESS LIBs and ESS Part 1
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Questions and Answers

What is the primary risk related to Lithium-Ion Batteries (LIBs)?

  • Improper disposal
  • Physical damage
  • Over-charging
  • Thermal runaway (correct)

    • What is a characteristic of Energy Storage Systems (ESS)?

  • Only comprised of DIY batteries
  • Capable of supplying electrical energy at a later time (correct)
  • Only used for residential applications
  • Limited to outdoor use

    • What is a common cause of thermal events in LIBs?

  • Regulated equipment
  • Properly charged batteries
  • Damaged batteries (correct)
  • Indoor facility applications

    • What should you do if an LIB has been submerged in saltwater?

    <p>Discard the battery immediately</p> Signup and view all the answers

    What is a type of Energy Storage System (ESS)?

    <p>Walk-in container system</p> Signup and view all the answers

    What is a hazard associated with LIBs?

    <p>Dispersion of toxic flammable gases</p> Signup and view all the answers

    What is a consequence of thermal runaway in LIBs?

    <p>Dispersion of gases and/or violent explosion</p> Signup and view all the answers

    Why should you discard an LIB if it has been submerged in water for a long period of time?

    <p>It may discharge or cause a fire</p> Signup and view all the answers

    What can combine to form a flammable, explosive, and toxic atmosphere?

    <p>Gases from lithium-ion batteries</p> Signup and view all the answers

    What is a characteristic of lithium-ion battery fires?

    <p>They can unexpectedly re-ignite</p> Signup and view all the answers

    What should TFS personnel wear when working in a Controlled Area?

    <p>Full PPE, including SCBA</p> Signup and view all the answers

    What should be done with ESS containers during an incident?

    <p>Leave them closed and untouched</p> Signup and view all the answers

    Why should Incident Commanders consider letting the fire burn itself out?

    <p>To protect exposures from a safe distance</p> Signup and view all the answers

    What can remain in lithium-ion batteries even when discharged?

    <p>A significant amount of stranded energy</p> Signup and view all the answers

    Who should be contacted when dealing with a lithium-ion battery incident?

    <p>Site staff and CANUTEC</p> Signup and view all the answers

    What should the Incident Commander do with the involved batteries?

    <p>Use a TFS supplied cell phone to take pictures and send to the Division Chief</p> Signup and view all the answers

    Study Notes

    Energy Storage Systems (ESS)

    • Definition: A battery or group of batteries that store energy to supply electrical energy at a later time.
    • Types of ESS:
      • Walk-in container system (outdoor)
      • Outdoor cabinet, not walk-in
      • Indoor facility (residential, commercial, public utility)
      • Large and small vehicle batteries

    Thermal Runaway

    • Definition: A phenomenon where a lithium-ion cell enters an uncontrollable, self-heating state.
    • Risks:
      • Dispersion of gases
      • Ejection of shrapnel and/or particulates (violent cell venting)
      • Fire

    Background

    • Use of Lithium-Ion Batteries (LIBs) is growing exponentially in residential, commercial, and public utility applications.
    • Damaged batteries, improper charging, and non-regulated equipment are common causes of thermal events.

    Hazards

    • LIBs may rupture and disperse toxic, flammable gases and/or explode violently due to:
      • Thermal conditions (hot or cold temperatures, changes in temperature)
      • Physical damage (impact, crush, pierce)
      • Electrical issues (overcharging, forced discharge, internal manufacturing defects, internal short circuiting)
      • Drying after being wet (discard battery if submerged in saltwater)
    • Flammable and toxic gases produced during thermal runaway can combine to form a flammable, explosive, and toxic atmosphere.

    Safety Considerations

    • Note: Water will not prevent a battery from entering thermal runaway.
    • General guidelines:
      • All TFS personnel must wear full PPE, including SCBA, in a controlled area.
      • No ESS containers should be opened or overhauled for safety.
      • Incident Commanders should consider letting the fire burn itself out and set up defensive operations.
      • Always consider the system energized, even when shut down and/or discharged.
      • CANUTEC is the primary resource for information.
      • Incident Commander will use a TFS-supplied cell phone to take pictures of batteries involved and send to Division Chief (DVC) Fire Investigations.

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    Description

    This quiz covers the definitions and concepts of Energy Storage Systems, including types of ESS and the risks associated with Thermal Runaway.

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