Lightweight design has always been a vital aspect in the development of modern electric vehicles, and a large portion of the vehicle’s weight comes from the battery pack. In order to improve energy efficiency, reduce greenhouse gas emissions, and reduce users’ driving costs, it is essential to develop lightweight battery pack structures. Scandium-containing aluminum alloys, which have long been used in aerospace applications, provide excellent mechanical performance, low density, good corrosion resistance, and high thermal conductivity. However, their application in the automotive industry is limited. This project aims to explore the potential for reducing battery housing mass and to evaluate the trade-offs between cost and mass by using Sc-Al alloys.