The European Union's Battery Regulation will require a digital Battery Passport for all EV batteries sold in Europe starting in 2027. This passport is a secure digital record that tracks a battery from raw material sourcing through manufacturing, vehicle use, second-life applications, and recycling. It aims to provide transparency on a battery's origin, composition, carbon footprint, and state of health over its entire lifecycle. A battery passport could change how used EVs are valued by giving buyers verified data on remaining capacity and expected lifespan. It also helps recyclers know exactly what materials they are receiving. The main challenge is ensuring data integrity and a trusted chain of custody so that every update is authentic and the record cannot be manipulated. This is similar to efforts to verify the lifecycle claims of low-carbon fuels.
