'SBB 2.0' passes UL Solutions' large-scale fire test... “Proof of square shape excellence”

Samsung SDI announced on the 28th that its integrated energy storage system (ESS) solution product 'SBB (Samsung Battery Box) 2.0' met all evaluation criteria in the recent large-scale fire test (LSFT) of the global safety certification agency 'UL Solutions'.

SBB 2.0 is the first ESS solution introduced by Samsung SDI equipped with LFP (lithium iron phosphate) batteries, and will be produced by Star Plus Energy (SPE), a joint venture with Stellantis located in Indiana, USA.

This LSFT was conducted by artificially starting a fire in an SBB 2.0 container and then verifying whether it would spread to adjacent containers.

As a result of the test, there was no fire spread to surrounding racks, gas emissions, explosions, or ruptures, and self-extinguishment occurred without sprinkler activation.

Previously, in July, Samsung SDI's uninterruptible power supply (UPS) equipped with a LMO battery also passed the LSFT.

Regarding successive fire safety passes, Samsung SDI explained that this was due to the structural advantages of prismatic batteries and the technological competitiveness built up over a long period of time. The square type of sturdy aluminum can structure is resistant to heat, shock, and pressure, and various safety devices can be added, so it is evaluated as superior in terms of safety compared to the pouch type.

An industry official said, "As global ESS demand has recently surged, interest in fire safety is also increasing," adding, "The perception that the square type is the safest among battery form factors can be seen as proven in tests by global certification agencies."