UPS + lithium battery energy storage technology will quickly deploy data centers. As lithium battery UPS technology matures and improves and costs are increasingly optimized, data center UPS will quickly complete the conversion from lead-acid batteries to lithium batteries, and the trend of data center UPS switching to lithium batteries will become even more rapid.

　　UPS + lithium battery energy storage technology will quickly deploy data centers. As lithium battery UPS technology matures and improves and costs are increasingly optimized, data center UPS will quickly complete the conversion from lead-acid batteries to lithium batteries, and the trend of data center UPS switching to lithium batteries will become even more rapid. The UPS + lithium battery energy storage solution improves the reliability of the data center. The lithium battery energy storage system is likely to become a standard product in the data center market.

　　Battery development history:

　　In the data center, we use a large number of lead-acid maintenance-free batteries as UPS backup energy storage. As the last line of defense for power supply in the data center, the safety of all loads depends on the reliability of the battery. However, in actual applications, we found that more than 30% of data center load outages are caused by battery failure.

　　The development of lead-acid battery technology is very slow, and there are basically no major breakthroughs. For all data center managers, lead-acid batteries are always a troublesome fact that they have to face. It has very strict requirements for application scenarios: the ambient temperature cannot be too low or too high; the battery is afraid of frequent discharge or never discharge; it cannot be quickly charged or discharged quickly during use; a separate battery room is required to avoid acidification. Fog corrodes other equipment, the battery occupies a huge space, and the floor load-bearing requirements are extremely high.

　　With the increasing improvement of the mains power supply environment and the highly redundant design of the data center power supply system, the battery supporting the UPS rarely really discharges. New energy storage batteries represented by lithium-ion batteries have occupied more than 90% of the market in consumer electronics. With the rapid development of the electric vehicle industry, the cost of lithium batteries today has dropped by 70% compared to five years ago. A global data center survey shows that 10% of data centers have adopted lithium battery UPS as backup energy. It is expected that the average annual growth rate of lithium batteries will exceed 100% in the next three years.

　　Application of lithium battery UPS in global data centers:

　　South Korea

　　In South Korea, thanks to the promotion of lithium battery manufacturers such as Samsung/LG/SK, lithium batteries have long been widely used in UPS energy storage and data centers. It is understood that nearly 80% of newly built data center UPS in South Korea use lithium Battery. In 2012, the world's first lithium battery data center, Shinhan Bank, was put into use. It used 34 Schneider Electric 500KVAUPS and more than 10,000 Samsung lithium batteries. So far, there have been no battery failures.

　　Japan, Singapore, Hong Kong

　　In areas such as Japan, Singapore, and Hong Kong, where land is at a premium, users are more concerned about the space and weight of batteries. Since the energy density of lithium batteries is several times that of lead-acid batteries, their floor space is reduced by 60% compared with lead-acid batteries. % or more, the valuable computer room space saved can be used to place server cabinets and rent them out for profit. At the same time, lithium batteries are more than 70% lighter than lead-acid batteries, so they can greatly reduce the load-bearing pressure on the floor. For data equipment rooms converted from office buildings, the cost of load-bearing transformation can be greatly reduced.

　　India

　　In India, due to the unstable mains power supply, batteries are often charged and discharged, and the ambient temperature is high. Ordinary lead-acid batteries need to be replaced every 2 to 3 years. However, after using lithium battery UPS, it has stronger adaptability to high temperatures and can survive discharge. It can be recharged quickly and has four times more cycles than lead-acid batteries. Therefore, in a price-sensitive market like India, even though the price of lithium batteries is more than twice that of lead-acid batteries, they are still widely recognized by users and consulting companies.

　　North American market

　　In the North American market, customers pay more rational attention to the TCO (total cost of ownership) of the data center, because compared to the initial purchase price of the hardware, the later maintenance and replacement costs (OPEX) of the equipment are more expensive. The design life of data center UPS is usually more than 10 years. Although the supporting lead-acid battery has a nominal design life of 10 years, it usually needs to be replaced every 5 to 6 years because the lead-acid battery loses its usage capacity in the later stages of use. There will be a cliff-like drop, and the lead-acid battery will be declared scrapped when the remaining capacity reaches 80%.

　　Even after 10 to 15 years of use, the remaining capacity of lithium battery UPS still reaches more than 80%. Its capacity attenuation is an approximately linear gradient process. We recommend that lithium batteries can be used to at least 70% of their capacity. In view of the long-life design and high cycle number of lithium batteries, they do not need to be replaced during the 10-year life cycle of the UPS, while lead-acid batteries must be replaced at least once. This alone can offset the cost pressure of less than 2 times the cost of lithium batteries. Lithium batteries do not require these complex maintenance operations, so users can reduce operating costs.

　　China

　　In China, the trend of UPS switching to lithium batteries will become even more rapid. The lithium battery industry uses highly automated production lines, and production capacity determines costs. This is an almost winner-takes-all industry. As the world's largest lithium battery producer, various manufacturers have been vigorously expanding production in recent years, but the result is serious overcapacity in the entire industry. As the Chinese government's subsidies for electric vehicles are gradually reduced, lithium battery UPS power supplies The industry urgently needs to explore new application growth points, such as wind and solar energy storage, power grid frequency and peak regulation, communication power supply, UPS backup battery, etc., which will become the new favorites of the lithium battery market.

　　UPS + lithium battery energy storage technology will quickly deploy data centers

　　It will become a trend to use lithium battery energy storage in data center power supply systems. Currently, for the data center industry, it is particularly important to maximize the use of existing space and minimize operating expenses, especially UPS power cooling energy consumption, battery maintenance and battery replacement service costs. Lithium batteries have become the key to solving these problems because of their excellent performance. The UPS lithium battery energy storage method may have a greater impact on the future data center industry, because more and more enterprises hope to adopt an architecture based on open computing, and they will specify the use of lithium batteries as the power supply for servers in the rack. power supply unit.

　　It can be seen that it is inevitable that the entire UPS industry will use lithium batteries to completely replace lead-acid batteries. It is only a matter of time. As the largest energy storage component in the data center, the safety of lithium batteries is very important. In the future, UPS + lithium battery energy storage technology will be rapidly deployed in data centers.

　　The safety of lithium batteries largely depends on the following four points. It is recommended that users pay attention to them when selecting:

　　1. High-quality battery production and quality control

　　2. Perfect BMS design

　　3. Chemical materials of lithium batteries

　　4. Compatibility test of lithium battery and UPS

　　Summary: As lithium battery UPS technology matures and costs are increasingly optimized, data center UPS will quickly complete the conversion from lead-acid batteries to lithium batteries, which will allow data center managers to re-plan the layout of gray areas and white areas. This ebb and flow trend has forced most lead-acid battery factories to partially transform to produce lithium batteries, because this revolution in energy storage technology has put fatal pressure on the entire lead-acid battery industry. If they do not transform, they will be eliminated. .

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