Northvolt was granted a patent for large-scale battery cell testing.

{
  "signal_id": "fd72eb62-61ed-55af-a459-00f4ea42c9dc",
  "signal_type": "patents-company",
  "signal_subtype": "patentGrant",
  "detected_at": "2026-09-17T23:27:17+00:00",
  "company": {
    "name": "Northvolt",
    "domain": "northvolt.com"
  },
  "data": {
    "cpc": [
      {
        "code": "G01R 31/3865"
      },
      {
        "code": "G01R 31/3647"
      },
      {
        "code": "G01R 31/3648"
      },
      {
        "code": "G01R 31/367"
      },
      {
        "code": "G01R 31/392"
      }
    ],
    "tags": [
      "Intellectual Property",
      "Research & Development",
      "Automotive",
      "Manufacturing Operations",
      "Analytics & Insights"
    ],
    "detail": "In July 2026 Northvolt patented production-line testing for evaluating rechargeable cell health and quality in electric-vehicle batteries.",
    "summary": "Northvolt was granted a patent for large-scale battery cell testing.",
    "event_at": "2026-07-28",
    "inventors": [
      {
        "name": "Sean Stephenson",
        "status": "unresolved",
        "is_primary": true
      }
    ],
    "event_kind": "grant_date",
    "grant_date": "2026-07-28",
    "source_url": "https://patents.google.com/patent/US12693343",
    "cpc_primary": {
      "code": "G01R 31/3865"
    },
    "patent_title": "Method and control arrangement for mass scale production testing of secondary cells",
    "patent_number": "US12693343",
    "uspto_assignee": "Northvolt AB",
    "patent_abstract": "The present disclosure pertains to testing of rechargeable cells for use in batteries arranged in electrical vehicles. According to a first aspect the disclosure relates to method for evaluating cell health of secondary cells 1 in mass scale production testing. The method comprises obtaining manufacturing data (i.e. data analysis 41 ) and generating scanning data by scanning 42 an inside of the secondary cells. The method further comprises determining cell quality using a prediction algorithm, performing additional testing 43 on a selection of the scanned secondary cells and verifying, based on the additional testing, accuracy of the prediction algorithm. The method thereafter comprises evaluating cell health of the individual cells 1 based on the cell quality determined using the prediction algorithm. The disclosure also relates to a corresponding control arrangement.",
    "precision_class": "structural",
    "invention_explanation": "A testing method that combines manufacturing records with scans of a cell’s interior and uses prediction software to identify its quality.",
    "technologies_mentioned": [
      "battery cell testing",
      "predictive analytics",
      "electric-vehicle batteries"
    ]
  }
}

curl https://signals.autobound.ai/v1/signals/fd72eb62-61ed-55af-a459-00f4ea42c9dc \
  -H "X-API-KEY: $AUTOBOUND_API_KEY"

curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"northvolt.com","limit":20}'