An Analysis of State of Charge in Lithium-ion Batteries

Details

• Creators:
  Keslar, Daniel
• Corporate Creators:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Corporate Contributors:
  United States. Federal Aviation Administration. Aircraft Certification Service Policy and Innovation Division
• Subject/TRT Terms:
  • Lithium batteries
  • Sensors
  • Electric batteries
  • Algorithms
  • Estimating
  • Hardware in the loop simulation
  • Thermal runway
  • state of charge
• Publication/ Report Number:
  DOT/FAA/TCTN-22/27
• DOI:
  https://doi.org/10.21949/1524506
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Abstract:
  In February 2022, a package containing 140 lithium-ion pouch cells caught fire on a conveyor belt in a sort facility of an all-cargo airline. One of the packages in the shipment was sent to the Federal Aviation Administration's (FAA) William J. Hughes Technical Center for hazard evaluation. Specialized cell analysis equipment was used to determine the state of charge (SOC) of the cells in the package. The measurements revealed that the cells were approximately at a 70% SOC, exceeding the maximum allowable shipping limit of a 30% SOC for the transport of cells and batteries classified as "UN3480, Lithium-ion batteries (including lithium-ion polymer batteries)".
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/64381/dot_64381_DS1.pdf
• File Type:
  [PDF - 998.91 KB]
• Collection(s):
  FAA Fire Safety
• Main Document Checksum:
  urn:sha-512:9cece8d031c30bd06bd9eb5f806de14263505b66d68886ef1cf86353ec6c8b0acbd30de6f18f2251b9519d6ff8b967e4c04cbbc8c4b4e04dfcf347d071c7cb62