An Evaluation of Automotive Electric Vehicle Cell-to-Pack Battery Technology for Higher Power-to-Weight Ratio

The world is moving towards a green transportation system. The governments also push for green mobility. Electric vehicles are becoming more popular in Europe, China, India, and developing countries. The energy density plays a crucial role in the battery pack architecture. The OEMs are moving towards a higher power-to-weight ratio. Higher capacity battery packs are needed to increase the range of the vehicle. The battery pack architecture is vital in defining the gravimetric and volumetric energy densities. The battery architecture depends on the battery cell, battery cell chemistry, and Government regulations. The cell-to-pack battery technique aims to achieve a higher power-to-weight ratio by eliminating unnecessary weight in the battery architecture. In this work, different battery pack architectures were analyzed to enhance the higher power-to-weight ratio and volumetric ratio. The different architectures were evaluated using statistical techniques to meet an optimum design.