Circunomics Battery Marketplace and Lifecycle Analytics

Circunomics GmbH is a battery circularity company based in Mainz, Germany, with a presence in Detroit. It addresses a market where used, surplus and second-life batteries are hard to value and hard to place, so assets sit idle or go to recycling too early.

The platform has three pillars: a B2B Battery Marketplace for trading first-life and second-life cells, modules and packs with condition data; Battery Lifecycle Analytics that builds a digital twin of each battery from lab and field data to estimate state of health, remaining useful life and residual value; and Battery Passport tooling to structure traceability data for the EU Battery Regulation. Users include battery and vehicle manufacturers, BESS operators, fleet operators and recyclers.

• B2B Battery Marketplace: listings of first-life and second-life cells, modules and packs with chemistry, capacity and test data.
• Lifecycle routing: assets are matched to reuse, second-life storage or qualified recyclers.
• State of health analytics: SoH, capacity trends, depth of discharge and recoverable capacity over time.
• Anomaly alerts: notifications on temperature, voltage imbalance and connection issues.
• Digital twin models: built from in-house lab testing and historical field data for each battery.
• Battery Passport support: structured traceability and compliance data for EU rules.

Battery pack assemblers and EV makers in Vietnam can list surplus or end-of-production stock to international buyers. BESS integrators can source tested second-life modules for factory storage. Exporters can use the passport tooling to prepare EU compliance data.

Sellers can move surplus, end-of-production or used batteries to verified buyers with structured listings instead of scrapping them. Buyers of storage batteries see condition data and state of health before purchase. Asset owners get near-real-time health tracking and anomaly alerts, and documentation is prepared for EU Battery Passport obligations starting in February 2027.

EU rules require a digital battery passport for EV, industrial and BESS batteries from February 2027, and the volume of surplus and retired batteries is rising. Vietnamese and Southeast Asian battery, EV and electronics makers that export to Europe will need traceability data and better channels for surplus and second-life batteries.

Circunomics GmbH is registered in Mainz, Germany (HRB 49006) and also operates from Detroit, with about 35 staff. Advisors and supporters include former Audi CEO Bram Schot and former Audi CTO Peter Mertens. The company runs its own battery testing lab.