After the assembly of these cells, they are connected to current collector plates to form EV battery modules. The cells in these modules are connected in a specific configuration in order to achieve the desired power output. Modules are then assembled to form the EV battery pack, which is the final deployable battery system.
A battery module is essentially a collection of battery cells organized in a specific arrangement to work together as a single unit. Think of it as a middle layer in the hierarchy of battery systems. While a single battery cell can store and release energy, combining multiple cells into a module increases the overall capacity and power output.
EV battery modules each consist of a number of EV battery cells connected in series or parallel, forming units that produce the required voltage and energy capacity. EV battery packs are the final product, assembled as well in series or parallel within a hard housing.
Battery modules are crucial because they offer a balance between manageability and capacity. Individual cells are too small to power large devices, while entire battery packs are cumbersome to handle and maintain. Modules, however, strike the right balance, making it easier to design, assemble, and maintain complex energy storage systems. Part 2.
New battery’s SOC can be estimated with knowing manufacturing date and storage time (Table 2.). If: the customer needs to add more battery modules (for example, add two battery modules to an existing SBR096). one battery module is faulty and new battery module needs to be replaced.
The modules are stacked in series or in parallel within a robust metal housing that protects the cells from shock, vibration, and other environmental factors. Finally, the modules are assembled, again in series or in parallel, into a sturdy battery pack housing.