What are the advantages and application challenges of lithium-ion batteries in data centers

2. Lithium iron phosphate high-stability battery cell, thermal runaway, no fire; 3. Intelligent voltage equalization control, single module failure can operate normally; 4. Three-layer BMS system, layer by layer to ensure the reliability of lithium-ion battery; 5. High energy density Compared with lead acid, it saves 70% of the floor space; 6. Intelligent lithium-ion battery management system saves 80% of daily operation and maintenance costs. Challenge 1: Multi-cabinet parallel current sharing problem, multi-cabinet parallel discharge, uneven discharge between the cabinets caused by inconsistencies in the internal resistance and capacity of the cell, differences in power distribution, etc., especially during short-term large current discharges. Cause overcurrent protection of battery cabinet one by one. Challenge 2: Online expansion of new and old battery cabinets. During the application of lithium battery systems, partial failure rates cannot be prevented; or the need for capacity expansion due to increased load; there will be scenarios where new and old battery cabinets are used in parallel. The mixed use of new and old battery cabinets will cause serious bias current due to the inconsistency of internal resistance and capacity, and even lead to overcurrent disconnection of single battery cabinets. Challenge 3: The problem of equalizing the voltage of the battery cells in series, and the inconsistency of the internal resistance and capacity of the battery cells in a single group of batteries, causing the single battery cell to charge overvoltage, making the entire battery system unable to be fully charged. Challenge 4: Failure maintenance problem, a battery module in a single-string lithium-ion battery pack fails, causing the entire group of lithium-ion batteries to fail to work properly, how to quickly maintain and replace them. Challenge 5: Fire protection problem. When lithium-ion batteries are placed in the micro-module data room, if a fire occurs in the lithium battery cabinet, how to control the fire inside the cabinet without spreading to the surrounding ICT equipment? Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Advantages and disadvantages of lithium batteries compared with polymer lithium batteries