Choose your chemistry wisely, to avoid thermal runaway, and get the performance you need
Industrial rack-mounted uninterruptible power supplies (UPSs) are used in data centers or telecom central offices to provide backup power for servers and switching equipment in the event of failure. Historically, these UPS’s have relied on Lead Acid as the predominant battery type. With the introduction of the Open Compute Project (OCP) initiative and hyperscale data centers, Lithium-ion batteries are gaining market share over the incumbent Lead Acid battery technology.
This article presents some of the thermal considerations and trade-offs when selecting a Lithium-ion UPS system to complement your data center equipment. There are two available chemistry options Lithium Iron Phosphate (LFP) and Lithium Nickel Manganese Cobalt Oxide (NMC). Operators need to consider expected discharge time, active versus passive cooling, options for scalability, and the expected lifetime of the batteries.
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