More Energy – Less Weight OBRIST Powertrain batteries for PHEV and BEV applications are designed to fulfill customer expectations mostly related to increased specific energy and reduced costs. For instance, our 17.3kWh Vacuum Fixation Technology battery reaches the specific energy density level of 177Wh/kg, an increase of 29Wh/kg over the previous generation. Our innovative water-cooled battery can reduce temperature differences within the battery up to less than 2°K. Cost Reduction For the housing, we use a 2mm thick lightweight aluminum. In addition, the whole system was designed with a strong focus on excellent component integration to reduce complexity and material costs. The battery architecture has been tailored to automated production to achieve an extra level of reliability.