A data-field map prevents Battery Passport support evidence from becoming a folder of unexplained files. It ties each lithium document to a specific data question. 1
This spoke belongs to the Battery Passport Lithium Vault pillar at /battery-passport-lithium-vault/.
Mapping the field to the file
For each passport-related lithium data field, the map should identify the file, issuer, date, material boundary, battery family or product reference, hash, and URL. It should also state whether the file is primary evidence, secondary evidence, or a customer interpretation of source data. That distinction helps verifiers understand how much weight to place on the record.
Cross-pillar connections
Carbon fields should point to carbon evidence pages. Origin fields should point to provenance pages. Recycled-content fields should point to recycled-content files. A map that does not link sideways forces reviewers to reconstruct the chain manually.
Limitation language
The field map should say Lithium Record preserves customer-uploaded source evidence and does not validate the passport field, determine legal sufficiency, or issue the regulated Battery Passport. The operator remains responsible for passport data quality and compliance.