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The B2B battery marketplace. Built to assess, trade, and document battery assets.

Circunomics connects battery sellers and buyers across the full lifecycle, from First Life to Second Life. With analytics, structured data, and Battery Passport ready documentation to back every transaction.

A close up of a machine with blue and white parts.

industries

Tailored for Your Industry

Battery Manufacturer

1st & 2nd battery LIFE

Battery Manufacturer

MARKETPLACE AND ANALYTICS

Assess State of Health and residual value with Battery Lifecycle Analytics, then move surplus, overstock, or end of production assets through a structured B2B marketplace to qualified buyers.

Find value beyond production

Mobility Manufacturer

1st Battery Life

Mobility Manufacturer

Analytics & Marketplace

List assets anonymously where needed and share the right asset data and lifecycle context to support buyer fit and pricing. Battery Lifecycle Analytics adds State of Health signals, so you can decide what to place on the market and when. Circunomics has traded about 0.5 GWh to date and expects to reach about 1 GWh in 2026.

Move surplus battery to qualified buyers

Fleet Operator

1st Battery Life

Fleet Operator

Analytics & Marketplace

Get State of Health and residual value signals across your fleet. When assets are ready for their next lifecycle stage, list them with structured data and connect with qualified marketplace partners ready to take them on.

Manage fleet batteries end to end

Special Market

1st Battery Life

Special Market

Analytics & Marketplace

Find batteries, modules, or recovered materials for niche use cases. Listings on Circunomics include condition data, asset information, and traceability documentation where available so sourcing decisions are based on what assets can do.

Explore specialized battery sourcing

BESS Manufacturer / Operator

1st & 2nd Battery Life

BESS Manufacturer / Operator

Analytics & Marketplace

Source First Life and Second Life batteries for stationary energy storage on a marketplace with verified sellers, price bundling options, and condition data included in every listing. Battery Analytics supports State of Health assessment and valuation, so you know what you are buying before you commit.

Optimize storage battery lifecycles

Recycler

End of Life

Recycler

Marketplace

Close the loop by reclaiming valuable raw materials. Find feedstock through our Marketplace.

Find feedstock and leverage raw materials

Raw Materials

End of Life

Raw Materials

Analytics & Marketplace

Close the loop by reclaiming valuable raw materials. Find feedstock through our Marketplace.

Waste Supplier

End of Life

Waste Supplier

Marketplace

Streamline your end-of-life processes through our Marketplace.

Maximize first-life & resale opportunities

Marketplace insights

Current Battery Volume

See what is active on the marketplace right now: Listed capacity, active buyer demand, and available volumes across First Life and Second Life.

A live, transparent view of what the battery market looks like.

Cell

Battery Listing

nominal energy Per Cell

12,5 Wh

state of HEalth

100%

Cell Chemistry

NMC

Amount

40599

EU+ 3

tested

Cell

Battery Listing

nominal energy Per Cell

12,5 Wh

state of HEalth

100%

Cell Chemistry

NMC

Amount

40599

EU+ 3

tested

Cell

Battery Listing

nominal energy Per Cell

12,5 Wh

state of HEalth

100%

Cell Chemistry

NMC

Amount

40599

EU+ 3

tested

Join the Platform

Product

Three Pillars. One Platform

BATTERY TRADING & LIFECYCLE ROUTING

B2B Battery Marketplace

Trade First Life and Second Life battery assets on a B2B marketplace built for battery professionals.

BATTERY LIFECYCLE ANALYTICS

Analytics

Gives you State of Health data, usage history, and residual value signals, so pricing and sourcing decisions are derived from available asset condition and performance data.

TRACEABILITY & COMPLIANCE SUPPORT

Battery Passport

Structure the battery data you need for traceability, documentation, and Battery Passport readiness.

Battery Matchmakers around the world

We are Globally Active.

We bring next-gen analytics and scalable battery matchmaking to those in need – the innovators across the globe. Find out more about our mission to a smarter, greener energy future.

About Us

A woman sitting at a table with a laptop computer.

Join Us

Are you our next Battery Matchmaker?

If you're passionate about tech, sustainability, and real-world impact — let’s build that future together! We’re a fast-growing team on a mission to make battery circularity the new standard. From our HQ in Mainz to partners across Europe and the US, we’re building smart, sustainable solutions that scale.

I want to become a Battery Matchmaker

Newsroom

Our latest announcements + a designated Press Hub!

May 19, 2026

How to Make Your Surplus Battery Lot Buyer-Ready for BESS

You have surplus batteries. Moving them into BESS should be straightforward. It rarely is. Most deals stall not because of battery quality, but because the right documentation never travels with the lot. BESS buyers need more than a price and an SoH number. They need method transparency, thermal history, lot consistency data, and a traceable chain of custody. This guide walks through exactly what buyer-ready looks like from the seller's side: what to prepare, what buyers check first, and where most deals fall apart before they close.

Read article

May 12, 2026

Battery Sourcing in Europe: Why Access Is the Problem

Most supply channels still serve large OEMs, not smaller companies buying project by project. MOQs are too large, lead times are too long, and procurement processes move too slowly for real project demand. This article breaks down where battery sourcing in Europe still breaks down for smaller buyers, and what a more workable sourcing setup actually looks like.

Read article

May 4, 2026

B2B Battery Trading: From Registration to First Deal

B2B battery trading is full of friction — inconsistent listings, unclear condition data, unverified counterparties, and compliance surprises that show up too late. This guide walks you through the full trading process, step by step, from registration to your first closed deal. Whether you're moving surplus battery modules or sourcing second-life packs in Europe, here's what a structured process actually looks like.

Read article

Surplus Batteries for BESS projects guide

April 22, 2026

Surplus Battery Qualification for BESS: A Proven Workflow

Not every surplus battery lot is ready for BESS, but most buyers find out too late. This article walks through a five-gate screening workflow, from first contact with a lot to a documented go/no-go decision. It covers SoH assessment, lot consistency, thermal event history, minimum data pack requirements, and the contract terms that protect buyers at closing. If you are sourcing second-life EV batteries for BESS or building a repeatable procurement process, this workflow gives your team a structured, defensible framework, from first filter to contract readiness.

Read article

Build European Resilience: Data defeats China's geo-controls

April 16, 2026

Europe's Battery Data Problem Goes Beyond Supply

Europe's battery resilience depends on more than raw material supply. Battery traceability, battery data transparency, and circular data infrastructure are just as critical — especially as the EU Battery Regulation deadline approaches. This post explores why fragmented battery data is a structural weakness, and what the industry needs to do about it.

Read article

November 24, 2025

Future of Battery Recycling: Data & Value

This complete guide looks at the important connection between data security rules, the recycling process, and new market solutions. These factors are changing the way recycling companies do business

Read article

November 24, 2025

Second-Life Applications for EV Batteries

This comprehensive guide explores the economic, environmental, and strategic drivers propelling the shift toward second-life application for lithium-ion batteries, examining how this approach transforms battery technologies from single-use assets into multi-lifecycle value generators that strengthen supply chains, reduce dependence on raw materials, and support the transition to clean energy.

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May 28, 2025

Circunomics Lab for Battery Testing Is Open: Where AI Meets Real-World Battery Performance

What if you could predict exactly how a used battery will perform in its second life? That's no longer a hypothetical question. Circunomics has officially opened its state-of-the-art battery testing facility in Roßdorf, near Darmstadt, marking a significant leap forward in battery supply chain intelligence and circular economy innovation. The new battery lab represents more than just an expansion—it's a fundamental shift in how we verify, understand, and optimize the life of a battery from first use through recycling.

Read article

Deep Dives

Find more insights, press releases, latest news and more.

Go to Newsroom

Explore how Circunomics can support your next steps in your Battery Lifecycle

3d visualization of support in battery lifecycle