The EU Battery Passport, solved.
From 18 February 2027, every EV, e-bike and industrial battery over 2 kWh sold in the EU must carry a verifiable digital passport. cellasserro makes that passport compliant, tamper-proof, and cheap — built and kept current with localised AI.
The problem
The EU has made the battery passport law (Regulation (EU) 2023/1542, Article 77). From 18 February 2027, an in-scope battery cannot be placed on the EU market without one — no passport means no sale, across all 27 states. It must be reachable from a QR code on the cell and carry up to ~80–90 data points covering identity, carbon footprint, materials, due diligence, recycled content, state-of-health and end-of-life.
For most makers — overwhelmingly SMEs and importers — that's a daunting, expensive data exercise. The tools that exist are either enterprise-priced consortium platforms, or cheap spreadsheets-with-a-QR that no one can independently trust.
What cellasserro does
cellasserro issues a battery's passport in minutes: enrol the product, and it mints a tamper-evident, independently-verifiable identity, generates the GS1 Digital Link QR, and anchors a cryptographic proof on a public chain. Anyone — a buyer, a customs officer, a recycler — can scan it and verify it themselves, even if asserro disappears.
- Built to the official Battery Pass / DIN DKE SPEC 99100 data model.
- Tiered access — public, repairers/recyclers, authorities — out of the box.
- Self-serve and SME-priced, not a six-figure enterprise project.
cellasserro uses localised, controlled AI to do the heavy lifting — collecting, structuring and validating passport data from your existing documents, suppliers and systems, and flagging gaps before they become non-compliance. It's the same approach proven in TenzaOne's AI-assisted carbon-credit certification (tenza.one): automate the data work, keep a human in control, and slash the effort and cost. Our model holds the full regulatory knowledge base and updates itself as the rules and delegated acts evolve — so your passports stay correct without you tracking Brussels.
Why it's better
Today you choose between verifiable but enterprise-priced (the consortium players) or cheap but unverifiable (centralised databases you just have to trust). cellasserro is the first to be both — genuine public-chain proof at a self-serve SME price, with AI doing the data work. See the Competitors tab.
A real-world journey — a battery, cell to second life
Across cells, packs, vehicles and the grid, every step is a familiar, GPS-stamped phone scan — so the record carries where as well as what. Localised AI fills and validates the data, so no one needs blockchain expertise — the same passport works whether you're a cell maker, an importer, an OEM or a recycler. That simplicity is the point: the new rules are heavy, so the way to comply must be easy and familiar.
The battery passport data model
~80–90 mandatory attributes across seven clusters, aligned to DIN DKE SPEC 99100. The generic core (identity, compliance, carbon, recycled content, end-of-life) is reused by our sister passports for textiles, detergents and more; the battery-specific extension adds chemistry, due-diligence materials and ~40 state-of-health attributes. Access is tiered: Public Legitimate interest Authorities.
| Cluster | Key fields | Access | Type |
|---|---|---|---|
| 1 · Identity | Unique battery ID, manufacturer + operator, place & date, category, mass, warranty | Public | Generic core |
| 2 · Compliance | EU declaration of conformity, labels & symbols (Cd/Pb), test reports | Public Auth | Generic core |
| 3 · Carbon footprint | Total kg CO₂e/kWh + performance class A–G, by lifecycle stage, study link | Public | Core (battery values) |
| 4 · Due diligence | Supply-chain due-diligence report; cobalt, lithium, nickel, graphite | Public | Battery |
| 5 · Materials | Chemistry, critical raw materials >0.1%, hazardous substances, cathode/anode/electrolyte | Public Legit | Battery |
| 6 · Circularity | Pre/post-consumer recycled % (Ni/Co/Li/Pb), dismantling manuals, spare parts, collection | Public Legit | Core + battery |
| 7 · Performance / SoH | ~40 attrs: capacity, voltage, SOCE, SoC, cycle counts, resistance, temperature, lifetime | Legit | Battery · live/dynamic |
Where the battery passport is moving — three target markets
The EU sets the standard, but the obligation is going global. We lead where the pull is strongest and the incumbents thinnest.
The mandate
The sleeper
The wedge
The battery passport competition
We scored every serious player on two axes — verifiability (can a third party check it without trusting the vendor's database?) and SME accessibility (can a small maker self-serve affordably?). 5=best, 1=worst.
| Player | Type | Chain | Verif. | SME | Note |
|---|---|---|---|---|---|
| Circulor | Blockchain traceability | Permissioned | 3 | 1 | Volvo EX90 world-first, but OEM-only, opaque price |
| Circularise | Blockchain + ZK | Public + ZK | 4 | 2 | Strong, but enterprise/industrial, quote-only |
| Spherity | SSI / verifiable credentials | did:web (no chain) | 2 | 2 | "Decentralised" = trust-the-domain, not a public hash |
| Catena-X / Cofinity-X | OEM dataspace | Permissioned | 3 | 1 | The giant — SME-hostile (cost, integrators) |
| Kezzler · atma.io · Optel | Serialization / cloud | Centralized | 1 | 3 | Vendor-DB, enterprise serialization |
| Minespider (Open Battery Passport) | Open / blockchain | Public-anchored | 4 | 4 | Closest — but mining-rooted & "free" (monetised elsewhere) |
| DPP-Tool (€19) · DPP Hero (€49) | SME self-serve SaaS | Centralized | 1 | 5 | Cheap & self-serve — but zero independent verifiability |
| cellasserro | Verifiable DPP + AI | Public chain | 5 | 5 | Cheap + self-serve + genuinely verifiable + AI-assisted |
Where cellasserro wins
- The verifiable × affordable quadrant is empty. Every incumbent is either verifiable-but-enterprise (Circulor, Circularise, Catena-X) or cheap-but-unverifiable (DPP-Tool, DPP Hero). We're first to be both.
- "Decentralised" today often means trust-the-domain. The flagship "decentralised" passport (Spherity) leans on
did:web, not a public-chain hash. Our line: verify it yourself. - Proof must survive the vendor. Everledger (Tencent-backed, $51M raised) collapsed in 2023 and stranded its pilots. A public-chain record outlives us — a real trust message to risk-averse SMEs.
- AI does the data work no one else automates at this price — collection + validation, à la TenzaOne, so SMEs comply without an enterprise budget.
- GPS-enforced scans + nested codes — every touchpoint is geo + time stamped (a geographic chain-of-custody from cell to container), extra fraud-proofing the centralised tools and most chain players simply don't enforce.
Built on the primary sources — and an AI that keeps them current
Everything above is drawn from law and the official data standards, not blog summaries. Our localised LLM ingests these and re-checks them as they change, so the platform and this page stay accurate.
Ready for 18 February 2027.
See the architecture, or get early access for your battery line.