Early Detection of Thermal Runaway with Advanced Diagnostics

Details

• Creators:
  Torres-Castro, Loraine ; Bates, Alex M ; Johnson, Nathan B ; Quintana, Genaro ; Gray, Lucas ; Tanim, Tanvir ; Walker, Lee ; Todd, Jordan T ; Vennam, Geetika
• Corporate Creators:
  United States. Department of Transportation. National Highway Traffic Safety Administration ; Sandia National Laboratories
• Subject/TRT Terms:
  • Electric batteries
  • Failure
  • Lithium batteries
  • Test procedures
  • Electric vehicles
  • Li-ion
  • Thermal runaway
  • Gas sensing
• Publication/ Report Number:
  DOT HS 813 671
• DOI:
  https://doi.org/10.21949/w5aa-m571
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  United States. Department of Transportation. National Highway Traffic Safety Administration
• Abstract:
  This research investigated early detection of safety risks of Li-ion battery packs in electric/hybrid vehicles. Early detection technologies included rapid electrochemical impedance spectroscopy, sensing of volatile organic compounds, and H2 gas sensing technology. These sensors were used to monitor cells and packs for failure markers. This research evaluates the warning times during overtemperature and overcharge tests. The results show rapid electrochemical impedance spectroscopy consistently warned earlier for the overtemperature tests. For the overcharge tests, volatile organic compound gas sensors provided an earlier warning. The H2 sensors consistently had the shortest warning time for both test types.
• Format:
  PDF
• Funding:
  DE-AC07-05ID14517
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88514/dot_88514_DS1.pdf
• File Type:
  [PDF - 7.44 MB]
• Collection(s):
  NHTSA - Vehicle Safety Research
• Main Document Checksum:
  urn:sha-512:8cc95f26f5fbc21dc63802dcb721c6aa498811f6964fba59bbe536c66af428917ffb4526ffc0f45dad3715eef43a037f6b4df3bbbc6128f8cf6bfd73e7d6fea0