![]() ![]() Re-Charge Speed: Charging either a li-ion or lead-acid battery to 80% takes roughly the same amount of time. Li-ion batteries also contain fewer hazardous substances than lead acid batteries, but are more difficult to recycle. Li-ion batteries can also tolerate higher temperatures, which helps extend their lifecycle in data centers. Safety: Li-ion batteries were once considered more volatile and prone to igniting fires than their lead-acid counterparts, but changes in cell packaging and chemistry have made them much safer. According to an analysis by Schneider Electric, li-ion-based UPS systems can have a TCO that is 10-40% less (as of 2016) than that of a lead-acid system over a 10-year period. That results in a lower cost of ownership (TCO) and lower maintenance costs. Over a 15-year period, lead-acid-based systems would need to be replaced two or three times, while li-ion systems may not need replacement at all. The real advantage for li-ion systems is in their lifespan. Total Cost of Ownership: For UPS systems, lithium-ion batteries are generally more expensive than lead-acid batteries, although those costs are falling. These batteries generally have a higher specific energy/energy density than lead-acid batteries, a longer lifespan, a shorter recharge time, and are capable of completing a larger number of charge/discharge cycles (as many as two or three times more cycles than a lead-acid, depending on the chemical composition of the battery).īelow we’ve provided an analysis of some of the pros and cons of using li-ion batteries in UPS systems. Li-ion systems are relatively new to the UPS system space, but they can provide a number of key advantages for data center applications. The electrolyte is a lithium salt dissolved in an organic solvent.Ī lead-acid battery uses lead dioxide for the cathode, a lead anode, and sulfuric acid as the electrolyte. ![]() Lithium-ion batteries use a metal oxide for the cathode, and a carbon-based material for the anode. The key difference between a lithium-ion battery and a lead-acid battery is the mix of chemicals used in the electrodes and electrolyte within the battery. #UPS LITHIUM ION BATTERIES PRO#In fact, APC by Schneider Electric has already introduced li-ion batteries to its Back-UPS Pro line of UPS systems. ![]() Lithium-ion (li-ion) batteries could address all of these needs. Data centers increasingly are searching for ways to reduce the size and weight of these systems, reduce cooling requirements, and extend the life of UPS systems while reducing costs. UPS systems are typically built using lead-acid batteries to provide power in case of an outage, but these solutions have not evolved much in the past few years. Uninterruptable power supplies (UPS) help keep data centers humming even when there is a tripped breaker or larger outage. Power failures are a fact of life, but if you are managing a data center or a corporate network, they can be catastrophic. ![]()
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