DENSO and TÜV Rheinland Validate Battery Passport for EU Compliance

The joint project utilized AESC’s energy storage system (ESS) data to test the practical application of digital product passports. DENSO provided the underlying technological infrastructure, which generates product-specific passports accessible via QR codes. This service includes granular access-rights management to protect data sovereignty while ensuring that manufacturers can meet the stringent traceability requirements set by the EU Battery Regulation.

TÜV Rheinland Japan acted as an independent auditor, verifying that the data management processes align with European standards, including DIN DKE SPEC 99100. This specification governs critical attributes such as material composition and carbon footprint tracking. The validation exercise identified key operational hurdles for data preparation, but ultimately confirmed that the DENSO system integrates effectively into real-world business workflows.

Following this successful trial, the companies plan to expand the passport framework to include AESC’s automotive traction batteries. This move aims to establish a closed-loop circular economy, facilitating battery recycling and reuse on a global scale. By securing third-party verification now, the partners are positioning their clients to avoid disruptions when the EU mandate takes effect.