Image of Denso’s battery passport service complying with European battery regulations.
Denso Corp.
TOKYO, August 25, 2026 — Denso Corp. has started offering a battery passport service designed to help automakers, battery manufacturers and other companies comply with European Union battery regulations and improve battery traceability, the Japanese auto parts supplier said on Monday.
The service, called DENSO Digital Product Passport Solution for Battery, generates and manages battery passports for individual battery products. Based on a data model developed by Europe’s Battery Pass Ready Consortium, the platform is intended to help businesses collect battery information more efficiently from their own core systems and suppliers.
Users can access battery information through QR codes attached to products, while the service includes access-rights management functions that control what information can be viewed depending on the user category, such as general consumers or economic operators. Under the EU battery regulation, economic operators are businesses responsible for activities such as manufacturing, importing, exporting or selling batteries.
Denso said the platform also draws on blockchain expertise it has been developing since 2017 to support data reliability. By managing records in a chained structure, the system is designed so that altering one record would break consistency with preceding and subsequent records, making tampering theoretically difficult.
The launch comes ahead of the EU’s planned battery passport requirement from February 2027 for battery products including electric-vehicle batteries, light means of transport batteries and industrial batteries. Denso positioned the service as part of the broader Digital Product Passport framework being introduced in Europe to digitally manage and present product traceability information.
A Digital Product Passport is a digital record containing lifecycle information such as a product’s manufacturer, materials used, recyclability and disassembly methods to support sustainability and traceability. Denso said the EU battery regulation entered into force in Europe in August 2023 to promote the production and use of sustainable battery products.
The company is also looking beyond battery passports to other Digital Product Passport applications required under the Ecodesign for Sustainable Products Regulation. Denso said the service uses a multi-connectable architecture that can be applied to multiple data platforms and could eventually be expanded to product categories other than batteries.
Denso, headquartered in Kariya, Aichi Prefecture, is one of Japan’s largest automotive suppliers. European rules on batteries and product sustainability are prompting manufacturers and suppliers to build systems that can track materials, carbon footprints and recycling-related information across supply chains.