Samsung SDI UPS Battery Becomes World's First to Pass Indoor Large Scale Fire Test

All Criteria Met in UL Solutions Global Certification Test

"Proven Differentiated Safety Technology... Delivering Reliable Solutions"

On July 14, Samsung SDI announced that its battery for uninterruptible power supply (UPS) systems has become the world’s first to meet all criteria in the Indoor Large Scale Fire Test (Indoor LSFT) administered by a global safety certification body.

Battery product for UPS by Samsung SDI. Samsung SDI

A UPS is a core infrastructure device that ensures stable operation of facilities such as artificial intelligence (AI) data centers by instantly supplying emergency power stored in batteries when power supply anomalies occur, such as outages or voltage instability.

This safety test involved intentionally incinerating a module within the UPS battery rack to verify whether fire would spread to adjacent racks or systems. As a result, the ignited UPS battery module was completely burned, but there was no fire propagation, gas emission, explosion, or rupture in surrounding racks, fully meeting all performance and safety criteria. Notably, the fire was self-extinguished without activation of an overhead sprinkler system, demonstrating Samsung SDI’s differentiated technological capability.

With global big tech companies and AI data center operators now requiring verified fire safety as an essential condition for battery suppliers, Samsung SDI plans to leverage these test results to highlight its competitive edge in safety.

For this test, Samsung SDI applied its proprietary heat propagation prevention technology through unique system structural design, proving its safety. The company also used lithium manganese oxide (LMO), which offers high output and stable material properties. In addition, Samsung SDI’s distinctive prismatic battery technology was incorporated, featuring robust aluminum cases and vents for gas release, ensuring resistance to heat and shock.

Building on the differentiated safety technologies demonstrated by this UPS battery and products such as the Samsung Battery Box (SBB), Samsung SDI aims to accelerate its expansion into the AI data center and power energy storage system (ESS) markets.

A Samsung SDI official stated, "By passing this test, our differentiated safety technology has been recognized," adding, "We will provide the most reliable solutions to customers in various markets, including ESS for AI data centers."

This content was produced with the assistance of AI translation services.