Shrink film packaged battery pack
The shrink film package way for batteries are similar to for modules but have extra BMS built inside. Pouch cells will be arranged together with cell tabs go through PCB converting board(s), here will be extra foams among them for necessary buffering and isolation. After cells and converting boards are firmly fixed the cell tabs will lay down for tin welding as parallel and series configuration. To build the battery pack it will have BMS located and installed on the cell pack with necessary isolation foams. After that we will use PVC sheets all around the pack for protection, then use heat shrink film wrap the whole pack with heat blower to finish the final package.
We could also use cylindrical cells to build small capacity battery packs by this way. We may use plastic frame holders and (or) other necessary components to finish the whole package.
Here are pictures to show how a shrink film packaged battery pack been made.
For cell’s quality control and cell’s test & pick up etc for battery pack, please visit Technology page.
For the calculation of shrink film packaged battery pack, please visit Size Calculation page.
Here are some examples of shrink film packaged packs, the pack size can be adjusted according to the inner cell arrangement.
|Voltage||Capacity||Chemistry||Max Dis.Current||Pack Dimension||Package Way||Total Weight|
|24V||20Ah||Li-NCM||≤ 40A constant||105*75*255mm||Shrink film with BMS||3.1kg|
|36V||20Ah||Li-NCM||≤ 40A constant||145*75*255mm||Shrink film with BMS||4.3kg|
|48V||12Ah||Li-NCM||≤ 24A constant||105*75*255mm||Shrink film with BMS||3.3kg|