SAE releases Li-ion battery safety standards

  • 22-Mar-2011 08:31 EDT
A123-Passenger-Vehicle-battery-system,-exploded-view.jpg

J2929 focuses for the most part on conditions that can be evaluated using the battery system alone, rather than on the battery system as installed in a vehicle. (A123 Systems)

SAE International’s Battery Standards Committee has developed the first safety performance standard for lithium-ion battery systems. J2929 - Electric and Hybrid Vehicle Propulsion Battery System Safety Standard - Lithium-based Rechargeable Cells” focuses for the most part on conditions that can be evaluated using the battery system alone, rather than on the battery system as installed in a vehicle. SAE notes in the Scope section of the standard that "vehicle manufacturers may have additional requirements for cells, modules, packs, and systems in order to assure a safe battery system for a given application. A battery system is a completely functional energy storage system consisting of the pack(s) and necessary ancillary subsystems for physical support and enclosure, thermal management, and electronic control." The committee already is working on the second version of the standard, "which will expand and enhance the standard to include additional aspects related to thermal propagation, flammability, toxicity, EMC, and impact resistance," said Galen E. Ressler, Chair of the Battery Safety Standards Task Force.

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