AG10 battery.Lithium battery UPS power supply is becoming the preferred battery technology for data centers

　　Lithium battery UPS power supplies are becoming the battery technology of choice for data centers. As an "electric tiger", data centers consume 50 times more power than ordinary office buildings and have extremely high requirements for power supply quality. With the improvement and innovation of lithium battery technology, lithium battery UPS power supply has initially achieved safety, reliability and low cost, and continues to strengthen. Lithium battery UPS helps data center industry users upgrade their operation and maintenance methods, improve asset management levels, and achieve safe and reliable operation of power distribution systems.

　　1. Lithium battery UPS power supply is becoming the preferred battery technology for data centers

　　As lithium battery technology matures and costs are increasingly optimized, data center UPS will quickly complete the conversion from lead-acid batteries to lithium batteries. In the future, lithium batteries will not only be used as short-term backup delays for UPS, for example, with the help of UPS lithium batteries To achieve peak shaving and valley filling and peak-valley electricity price difference profitability, we do not even rule out using energy storage containers to partially replace diesel generator sets.

　　For distributed power supply systems or modular data equipment rooms, since the power of a single UPS is small, the battery capacity required is small. In addition, distributed power supply or modular computer rooms require power supply equipment to be close to IT equipment or installed in the same cabinet as IT equipment. This brings about load-bearing, space and other problems. The use of lithium iron phosphate battery UPS power supply will be more effective. It has the advantage of higher energy density.

　　It can be expected that the advantages of lithium iron phosphate battery UPS power supply will become more and more obvious, and its shortcomings will gradually decrease with the advancement of technology. Therefore, the data center industry needs to conduct in-depth research and rational application of the characteristics of lithium iron phosphate batteries, and test the application of lithium iron phosphate batteries in practical applications, so that the various components of the data center power distribution system can match each other and provide comprehensive performance.

　　2. Application of lithium battery UPS power supply in global data centers

　　According to a global data center survey conducted by Uptime in 2017, 10% of data centers have adopted lithium battery UPS as backup energy. Schneider Electric predicts that the average annual growth rate of lithium batteries will exceed 100% in the next three years.

　　❶Korea

　　In South Korea, thanks to the promotion of lithium battery manufacturers such as Samsung/LG/SK, lithium batteries have long been widely used in the fields of energy storage and data centers. It is understood that nearly 80% of newly built data center UPS in South Korea have adopted lithium batteries. . 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.

　　❷Japan, 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 UPS batteries. Since the energy density of lithium batteries is several times that of lead-acid batteries, their floor space is smaller than that of lead-acid batteries. More than 60%, 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.

　　❸India

　　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 power supply, due to its stronger adaptability to high temperatures, the It can be recharged quickly and has four times the cycle times of 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. . For example, the world's largest search engine company, beverage company, and daily consumer goods company all use lithium battery UPS configuration solutions in their data centers in India.

　　❹China

　　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. However, the result is serious overcapacity in the entire industry. As the Chinese government's subsidies for electric vehicles are gradually reduced, the lithium battery industry is in urgent need of Exploring new application growth points, such as wind and solar energy storage, power grid frequency and peak regulation, communication power supply, UPS backup batteries, etc. will become the new favorites of the lithium battery UPS market.

　　3. Advantages of lithium iron phosphate batteries:

　　Compared with ordinary lead-acid batteries and other batteries, lithium iron phosphate battery UPS has the following advantages:

　　① Good energy characteristics. Lithium iron phosphate batteries have relatively high specific capacity and specific energy, and have high reserve density.

　　② Long cycle life. The cycle life of lithium iron phosphate battery pack should be no less than 1,000 times.

　　③High rated voltage. The nominal operating voltage of a lithium iron phosphate battery pack is 3.2V. The number of series-connected batteries required to form a battery pack is about 30% less than that of a lead-acid battery.

　　④Light weight. The weight is about 1/6-1/5 of lead-acid battery under the same volume.

　　⑤ Strong adaptability to high temperatures. Can be used in environments up to 60°C. After processing, it can also be used in -45℃ environment.

　　⑥Green and environmentally friendly. Lithium iron phosphate battery materials are harmless to the human body and are environmentally friendly batteries. Regardless of production, use or disposal, it does not contain or produce any lead, mercury, cadmium and other toxic and harmful heavy metal elements and substances.

　　Summary: The large-scale explosion of data centers requires a large amount of electrical equipment, and the demand for connections between power distribution equipment is also huge. The new generation of data centers has put forward higher requirements for operation and maintenance, such as energy consumption issues, uninterrupted security continuity, higher IT equipment density, and intelligence. Because lithium iron phosphate battery UPS has excellent structural stability, safety performance and long service life, data center power supply and distribution systems widely use lithium battery UPS equipment as a solution.

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