Brief analysis of the advantages and disadvantages of lithium batteries

Advantages and disadvantages of lithium batteries Consumer electronics companies usually use lithium cobalt batteries, which have a capacity of several amperes. In these disconnected power systems, lithium manganese batteries are rectangular. The equipment has a capacity of 60 amps, with a long service life and various levels of fault protection. Sometimes a single module or even a single battery is required to monitor important functional parameters such as temperature, voltage and current. Sometimes, the power cabinet or even the entire system can be used as this monitoring process. It is necessary to perform monitoring to fully control the charging and discharging process to prevent the occurrence of critical heating and irreversible chemical processes. Lithium batteries also have higher energy density (Wh/kg) and higher output power density (W/kg). Its energy storage capacity is equivalent to that of lead-acid batteries, and its weight is less than one-third of that of lead-acid batteries. This advantage reduces the total mass of the entire system by 60-80%. The total cost of lithium batteries is 10 years (the average life of a data center UPS), while the cost of lead-acid batteries is 39%. Although this is an ambitious estimate, it guarantees at least 10% savings. The only serious disadvantage of lithium batteries is that their initial cost is much higher. This is why large data centers have always been the forerunners of new processing plans. The more important purpose of this equipment is to reduce overall costs, not short-term benefits, even if it saves a lot of money. In addition, the advantage of a small battery is that the available space is used more effectively, and a reliable monitoring system can ensure better safety and stability. Lithium batteries work at a higher temperature than VRLA without loss of capacity, which can reduce the load on the cooling system. Of course, there are even single-phase UPSs equipped with lithium batteries. Various application models start with the largest data center, then industrial applications, and finally the smallest server room, or even a single rack. Instead of lunch, one of the most important questions that all users will eventually ask themselves is: Is it the best time to switch from a disconnected power system to lithium batteries? To answer this question, the first thing to consider is the availability of technical capabilities. . The new battery will not fit all UPS models, so there may be serious demands for hardware and embedded software upgrades. Even under the same rated voltage, the charge and discharge characteristics of the battery will be different. The life expectancy of a typical UPS system in a data center is usually 10-15 years. Lead-acid batteries are used for 3-6 years, while lithium batteries are used for 10 years or longer. In the early UPS system (less than 5 years of history), many alternatives to lead-acid batteries proved to be useful. However, after replacing the lithium battery, it is very likely that the UPS system will be able to be used for the life of the lithium battery. If your power system is not connected to a medium with a longer service life, the battery life may be longer, so in most cases, it is useless to replace the battery. At the end of its life, you should consider replacing your entire UPS system with a new lithium battery disposal plan. But even with regard to an aging UPS system, the equipment’s precious battery is also very useful. You should consider its price drop and the ratio of maintenance costs to the total replacement cost of the old system. Conjectures and prospects Although lithium battery-powered UPS systems continue to reduce operating costs, and all UPS systems have them, most customers still use the tried-and-tested VRLA processing method. The importance of this phenomenon can be explained by the point of view that lithium batteries have long-term advantages. However, it did raise a lot of money. No matter what, the customer's contribution to the benefit is increasing year by year, and it is constantly increasing. For large data centers, the cost savings will be huge, so the power of lithium batteries will gradually increase in the company's departments. Lithium ion chemistry is also continuing to move forward hard. As time goes by, new production plans and technologies will emerge, and the price of lithium batteries will fall further. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the requirements for UPS lithium battery assembly equipment?