Tests Show IntuPlas Effective at Containing Large Prismatic Cell Runaway Events

Mineta Transportation Institute, San Jose, CA released the final report for project #1247 titled “Safety of Lithium Nickel Cobalt Aluminum Oxide Battery Packs in Transit Bus Applications”. (http://transweb.sjsu.edu/project/1247.html). The MINETA Transportation Institute funded research was conducted by the Battery Application Technology Testing Energy Research Laboratory (BATTERY), led by Timothy Cleary. Funding was also provided by The Pennsylvania State University and the US Department of Transportation to research hybrid transit bus safety.

The research team investigated solutions to protect large-format nickel cobalt aluminum oxide (NCA) battery packs in transit bus crashing events from cascading runaway situations. This research analyzed protective design concepts to ensure the safety of passengers and pedestrians during and after a crash event. This included preventing and mitigating the spread of fire.

The research provided recommended safety regulations for large vehicle, electric and hybrid electric powertrain vehicles and prompted federal regulations as well as create industry level standards for transit bus safety.

Mr. Cleary’s team concluded that the PyroPhobic material, IntuPlas is effective at containing large prismatic cell runaway events. The material held up to extreme temperature and force and has excellent capabilities to dissipate heat and to keep a runaway event from impinging into another area, limiting thermal propagation and maintaining structural integrity. In conclusion Pyrophobic material has “the ability to absorb substantial amounts of energy, a desirable trait when selecting a material for battery pack designs”.

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