The modular approach is the "red thread" at VOLTLABOR that can be found on all levels of battery packs. Modules are built up as bars or double stacks with the integration of an appropriate cooling concept. As a standard, Miba´s FLEXcooler® (water/ glycol) is implemented. The advantage of the double stack is the integration of the cooling component in between, which is an additional customer benefit in terms of packaging space height. The electrical and cooling layer are arranged opposed to each other so that the risk of a cell propagation due to degassing of a single cell is unlikely.