Advantages of The BYD LiFePO4 Pouch Cell(3.2V/25.6Ah SFA690M3B）
•The flexibility of the BYD LiFePO4 Pouch Battery Pack：
The completely assembled battery packs with the BMS built-in as a standard battery module. Modules can be assembled in a parallel configuration for increased capacity, or in a series configuration to increase the voltage. If needed, the BMS can offer an output cable for communication. These Battery modules can be charged separately or as a whole battery pack if assembled.
•Reliability：
Where one cell fails, another cell takes over. You can replace single faulty units while the rest of the system continues to function flawlessly, increases the reliability of the system. As an example, a 36-volt pack at 25 AH will only require 12 pouch cells welded together. If that same application were to use 18650 cylindrical cells, it would require 12 0pieces of 2.5Ah 18650 cells welded together. In a series string if any of the 120 cells have a problem the complete pack will fail. Also, 120 cells mean 240 nodes, each node represents one potential fault. So, a cylindrical based pack is not as reliable as an electrically equivalent pouch cell pack which would only have 24 nodes. In addition, the pouch cell welding procedure is much more reliable than welding cylindrical cells.
•Improved Energy Storage：
A pouch cell’s energy storage capacity is much greater in a given physical space in comparison to cylindrical cells.
•Safety：
Whenever either pouch cells or cylindrical cells have internal problems, pressure builds and they will swell up. In those infrequent situations, pouch cells merely swell up. Cylindrical cells are traditionally encased in an iron jacket, so that when the pressure builds within a cylindrical cell whose ends are held captive by other batteries or the case, they can literally explode which could result in a dangerous safety hazard.
•Weight：
Typically, pouch cells weigh less than the equivalent prismatic or cylindrical battery. The flat pouch cell energy density is greater than other shaped cells, but its much more difficult of manufacturing stacking pouch cell battery, so this is testing the battery manufacturer’s production technique.
•Uniformity and Consistency：
Grepow’s entire pouch cell line is manufactured by automatic equipment, then it is manually tested to ensure that the quality of each cell is up to standard, eliminating human error in hand-made cells, and allows every cell to have uniformity and consistency.
