HV busbars, crafted from copper C110, undergo stamping, CNC bending, finishing, and insulation processes. As an engineering service provider, M. TEC develops solutions in the field of overmolded busbars for electromobility. Key. This Tech Bulletin provides an overview of how new complex multi-layer molded busbar technologies can deliver significantly improved electrical performance from batteries to the power inverters and into the motors, while at the same time streamlining overall assembly processes. Busbars are essential components in electric vehicles (EVs), which are increasingly cornering the automotive market worldwide. A crucial element. Currently, the widespread adoption of 800V high-voltage platforms in new energy vehicles has made the copper/aluminum busbars within battery packs critical components.