5G, Internet of Things, and artificial intelligence technology are becoming important forces driving innovation and digital transformation. A new era of digital economy is coming. At the same time, the rapid development of smart grids and microgrids, as well as the continuous reduction of alternative energy costs and energy storage costs, will lead to more interaction and integration between the data center physical infrastructure and the upstream grid and downstream IT.
For the data center, failures will inevitably occur during the operation of the power system. Although the probability of failure is small and the duration is not long, the consequences are often very serious. Therefore, the application of the UPS system is especially important for the uninterrupted operation of the data room power system. UPS can provide IT managers in enterprise data centers with the time they need to protect sensitive devices and data from power outages.
In the past most of UPS products on the market used lead acid batteries to store emergency backup power. Although lead acid batteries are cheap, they may not be popular in current data centers due to their size, weight, maintenance requirements, toxic components, and relatively short service life.
Compared to traditional lead acid batteries, lithium ion batteries rely on their excellent characteristics, including higher energy density (70-260 kWh/kg vs. 15-50 kWh/kg) and longer life cycle (10-15 years) vs. 4-6 years), fast charging (1/2–1 hour vs. 6-12 hours), saving 50-80%, weight loss 60-80%, charge and discharge times (more than 1000 cycles vs. less than 400 Recycling), no harmful metals as lead and friendly to the enviroment, will gradually replace the traditional lead acid battery to become the preferred backup battery for data center UPS. According to a global data center survey conducted by Uptime in 2017, 10% of data centers have used lithium ion batteries as backup energy.
Due to the cost reduction of microgrid, smart grid, new energy and energy storage, and the higher requirements for the sustainable development of data centers in many countries and regions, more and more data center owners are considering adoption of lithium ion battery energy storage to reduce costs and achieve data center sustainability.