Assuming that "A" is referring to cylindrical metal casing cells.a. block of small LIFePO4 batteries
b. to use CATL LiFePO4 prismatic cells
Hi Korishan, did you have a source I could read on this?Prismatic cells (aka pouch cells) must be under compression to be used properly. You can't just let them lay flat on a shelf. This requires some kind of form that will keep compression on the cells at all times. Otherwise you will end up with pillows over time, which degrades the cell.
Sounds like you need to start reading a lot and also watching a lot of youtube videos.Also, what are the main difficulties in building of energy storage systems