The “Battery Solutions” joint working group between Catena-X, IDSA, IDTA, OPC Foundation, VDA, and VDMA will develop an OPC UA Information Model for the EU Battery Passport.
The Battery Passport will become mandatory in the EU from 2027 for batteries requiring all companies along the value chain to collect and integrate data and information . Current activities like the Battery Pass EU aim for the standardization of the whole ecosystem, roles, and infrastructure from a top-down view. The Battery Passport can also be seen as an EU pilot for the technical Digital Product Passport system.
The previous work for the digital product passport using OPC UA based on early version of DIN99100 battery specification is used where possible to ensure efficiency and interoperability. The goal of this working group is to leverage these existing battery passport specifications for the creation of the required semantical description of the data and information required in the Battery Passport from a technical point. The targeted lifecycle includes mining and material, production of cells, packs, and modules, OEM, users, collectors, Re-X for different battery domains like EV or storage systems Therefore, the proposed companion specification targets the exchange of information and data between different IT and OT systems, that use solutions for the battery passport. The main application is in the bridge of IT and OT, where companies in the battery value chain use and feed data into the battery passport. The companion specification allows the interoperability of various solutions on the market and in development.
Besides the semantical description, the working group extends the UA Cloud reference architecture with Battery Passport using this specification and interoperability, published as open-source. Alongside the reference architecture, guidance documents describing the specifics, usage, and best practices for companies will be delivered.
To ensure interoperability and avoid competing standards, the working group is tightly working together with the “Battery Pass EU” and its successor, “BatteryPass-Ready” consortium aiming for a clear integration of the results into the whole standardized ecosystem and defined interfacing with the top-level Battery Passport systems.
From a technical point of view, the working group relies on existing and ongoing work. Information models from Ontologies like BattINFO , Battery Value Chain (BVC) describe the general aspects and the battery process and value chain, not the detailed parameters. Further works like the Catena-X Battery Passport Schema and IDTA AAS models are directly integrated and target for the interoperability of the battery passport. This allows the working group to take benefit from this base work and might require extending the existing DIN specification. The working group also considers existing specifications and ongoing pre-standardization work like the ENLARGE project in the battery domain.
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