![]() ![]() Lead acid batteries have a pretty short life cycle, from 3 to 6 years. The most important advantage is its long service life. When sitting idle, a lithium-ion battery loses about 1-2% of its charge per month. Such batteries require less time for charging and feature a better self-discharge rate, which plays a major role in the event of frequent outages. Compact lithium-ion batteries reduce the area occupied by a uninterrupted power supply system by 50-80%. ![]() More efficient use of available space is one of the most relevant tasks of data center owners. In recent years, data centers have aimed to increase their power density given their limitations on space and the need for more-efficient operations. With similar energy storage capacity, they weigh about three times less than lead acid batteries, which helps reduce the total mass of the system by about 60-80%. Lithium-ion batteries also have a higher energy density (Wh/kg) and higher output power density (W/kg). Monitoring is necessary to get full control over charging and discharging processes to prevent critical heating and irreversible chemical processes from occurring. Sometimes, power cabinets and even the entire system can be responsible for such a monitoring process. Individual modules and, sometimes, even individual cells are responsible for monitoring key performance parameters such as temperature, voltage, and current. Their installed capacity is 60 Ampere hours, and they feature much longer service life and multiple degrees of failure protection. These uninterruptible power supply systems come with rectangular lithium manganese cells. According to Bloomberg New Energy Finance report, by 2025, lithium-ion solutions will account for 40% of the market for UPSs used in data center.Ĭonsumer electronics companies typically use lithium-ion cobalt batteries which feature capacities of several Ampere hours. Now, they are offered by all of the leading players, and today this direction is considered the most promising. The first uninterruptible power supply systems powered by lithium-ion batteries hit the market in 2016. Thanks to advancements in electric vehicles, this problem has been solved. Up until now, it was not viable to use them in the uninterruptible power supply systems of data centers since there was no reasonable balance between price, energy, capacity, safety, and reliability. But, the situation has changed in recent years for lithium-ion batteries. Since there are no economically viable alternatives to VRLA batteries, design engineers have had to put up with their shortcomings. VRLA batteries are not particularly durable and need to be replaced on a regular basis, which also leads to increased operating costs. The performance characteristics of VRLA batteries also depend on the temperature, which increases the load on air conditioning systems. Due to their weight and dimensions, they require that data centers have reinforced bearing structures. Valve-Regulated Lead-Acid (VRLA) batteries are commonly used in three-phase sources of uninterruptible power supplies. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |