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As public transportation becomes increasingly electrified, the management of traction batteries is taking center stage for transit companies. The Berlin Transport Authority (BVG) is therefore testing digital battery passports for its electric bus fleet in collaboration with the Dortmund-based technology provider Spherity. The goal is to make operational data available in a structured format across the entire battery lifecycle—from use in service to second-life applications and recycling. BVG already operates more than 300 electric buses with batteries of up to 700 kWh capacity. By the early 2030s, the fleet is expected to grow to around 1,500 vehicles. This will also place significantly higher demands on maintenance, condition monitoring, and documentation of high-voltage batteries in operation. Data access via QR code At its core, the digital battery passport is a structured dataset hosted in a decentralized, cloud-based infrastructure. Spherity relies on open standards and a decentralized identity architecture (SSI – Self-Sovereign Identity), which ensures that data access is traceable and tamper-proof. Authorized parties can access information via a unique identifier—in the case of the BVG, a QR code on the battery housing. This includes, among other things, data For transit companies, such a data framework can help better plan maintenance measures and assess the condition of individual battery systems more transparently. At the same time, relevant information for later phases of use or recycling processes can be documented early on. Relevance for regulatory requirements Digital battery passports are also gaining importance in light of new European regulations. The EU Battery Regulation (BATT 2.0) and the Ecodesign Regulation (ESPR) stipulate that comprehensive information on the lifecycle must be available for certain battery categories in the future. This includes data on sustainability, material composition, and performance. For the BVG, this is not an abstract regulatory framework: its first 228 e-buses saved nearly nine million liters of diesel and approximately 30,000 metric tons of CO₂ between 2019 and 2024—figures that could be automatically documented and reported via the battery passport in the future. Standardized data models can help companies meet these requirements and efficiently provide evidence for audits or sustainability reports. At the same time, new demands arise regarding IT integration, data quality, and access management. Foundation for data-driven fleet management In addition to regulatory aspects, transit companies also see potential in digital battery passports for operational fleet management. Manufacturers can provide additional technical documentation, such as maintenance manuals or schematics, in digital form. This allows service processes to be accelerated and information to be managed centrally. Structured data exchange can also benefit authorities or testing organizations, for example during technical inspections or environmental assessments. However, this requires that interfaces be designed to be interoperable and that data protection and security requirements be met. “The battery passport is not an end in itself—it becomes an operational tool. It provides transparency regarding a battery’s condition, origin, and compliance-related information, supports predictive maintenance planning, reduces manual effort, and facilitates compliance with regulatory requirements throughout the lifecycle,” says Ricky Thiermann, Head of Product Management at Spherity. Focus on second life and recycling In bus operations, traction batteries typically reach a stage after ten to 15 years at which their capacity is no longer sufficient for use in the vehicle. In many cases, however, they can still be used as stationary energy storage systems—a so-called second-life scenario that significantly extends their overall service life. Initial pilot projects are underway, for example, at a well-known discount store. Recycling, during which up to 95 percent of the materials can be recovered, only takes place at the end of the extended lifecycle. A digital battery passport can provide relevant information on material composition or the so-called “state of health” during these later stages of use. For recycling companies, this can simplify process planning and help recover valuable materials more efficiently. A cornerstone for transparent battery supply chains With the increasing adoption of digital battery passports, a more comprehensive database is emerging along the entire value chain. This could enable transit operators, manufacturers, service providers, and recyclers to collaborate more closely. At the same time, the example from Berlin shows that the practical implementation of such solutions involves organizational and technical challenges—such as standardizing data formats or integrating them into existing IT systems. Nevertheless, as electric mobility gains momentum, the need for transparent information about batteries is growing noticeably. The Berlin project with Spherity could demonstrate how digital battery passports can evolve from a mandatory regulatory tool into a practical operational tool—and thus serve as a blueprint for other public transport operators in Europe. Based on information from Spherity GmbH Sources:https://www.bvg.de/de/unternehmen/nachhaltige-mobilitaet/flotte/e-mobilitaethttps://www.berlin.de/sen/uvk/mobilitaet-und-verkehr/verkehrsplanung/oeffentlicher-personennahverkehr/elektro-busse

Battery recycling has made enormous strides in recent years. Regulations are in place, and capacity is growing. What is often overlooked is that the crucial step happens before the shredder—during disassembly. This article examines an underestimated bottleneck, pack architectures that hinder the circular economy, and an approach that turns automated robots into the solution. In the public debate, battery recycling has gained significant momentum in recent years: The regulatory framework is in place, capacities are growing, and interest in raw materials is high. What is rarely discussed, however, is: The crucial step does not take place in the smelting furnace or during hydrometallurgical processing—it happens before that, during disassembly. Before a high-voltage battery can be recycled, it must be dismantled: into modules, cells, copper and aluminum components, circuit boards, and plastics. This step plays a decisive role in determining the quality of the resulting material stream. Three challenges are particularly critical: the high physical effort involved, the significant safety requirements when handling high-voltage systems—and a skilled labor market that works against manual scaling. The startup R3 Robotics has turned this into a mission: Automating disassembly not only solves a process issue; it creates the conditions for a functioning circular economy. Software-enabled hardware: The R3 Robotics approach R3 Robotics was founded by Antoine Welter and Xavier Kohl. Kohl earned his Ph.D. in Chemical Soft Robotics at ETH Zurich; Welter comes from a background in strategy consulting and B2B sales, but has focused on battery systems and the circular economy for years. Their core premise: The key lies not in the recycling process itself, but in the clean material stream leading up to it—and that can only be achieved through intelligent disassembly. To this end, the company operates a fully certified recycling facility in Kuppenheim near Karlsruhe. A decision that initially met with resistance from investors—investors tend to favor “asset-light models,” Welter admits. But without their own facility, the founders are convinced, models cannot be trained and processes cannot be tested on an industrial scale. There is also a practical sales argument: in practice, European industrial customers often work exclusively with certified facilities. The site serves as both a demonstration and development center; customers want to see the technology before they invest. In 2023, R3 Robotics won the European Innovation Council Accelerator. The founders describe the technical core as “software-enabled hardware”—a term chosen deliberately. Robots alone are not enough. Customized end-effectors are needed—that is, grippers and tools on the robot arm—tailored to the specific pack architecture. Combined with computer vision, the system autonomously recognizes which package is on the tool carrier and initiates the corresponding disassembly process. „Robotics alone does not solve the problem. It requires customized end-effectors, computer vision, and the process knowledge of how software and hardware work together. “  — Antoine Welter, co-founder of R3 Robotics R3 Robotics internally refers to these combinations of tool hardware and software intelligence as “skills.” Two to three new ones are developed each quarter, as pack architectures are constantly changing. The system is dual-configurable, meaning it is equipped to handle two different pack types simultaneously, and flexibly processes a wide variety of battery types. This reflects real-world conditions at recycling facilities: packs arrive in mixed batches, not sorted. The nominal system capacity (nameplate capacity) is approximately 1,600 tons per year with 1.5-shift operation. In the medium term, R3 Robotics is focusing on a Robotics-as-a-Service model: The systems are to be operated directly at the customer’s site—at recyclers or OEMs—because battery logistics are a significant cost factor and the regulatory requirements for transporting high-voltage batteries quickly undermine the business case. Why manual disassembly is no longer feasible Battery disassembly is physically demanding. Welter has experienced this firsthand: „I once disassembled three batteries in a single day. I’m 6 feet 6 inches tall, weigh 220 pounds, and I’m not the type to shy away from hard work. It’s really, really hard work.”  — Antoine Welter Vehicle batteries are simply not designed for manual disassembly. Bolted and glued packs require considerable force, lifting modules pushes the limits of occupational safety guidelines, and the entire process takes place in close proximity to high-voltage systems. The robot has a structural advantage here: It never gets tired, never loses focus, and if something does go wrong, an end-effector burns out—not a human hand. Another factor is a scaling problem that is already acute in the U.S. and is becoming increasingly noticeable in Europe: a shortage of skilled workers. Welter reports from conversations with American recyclers that qualified personnel are migrating to the booming data center sector—with correspondingly better pay. Without skilled workers, manual scaling becomes impossible, no matter how much the volume increases. Second life first, recycling last R3 Robotics postions itself not as a recycler, but as an upstream process provider: disassembly, sorting, condition assessment. The result is clean material streams for various uses—intact modules for second-life applications, copper, aluminum, plastics, and battery management systems for reuse. Only what is truly no longer usable goes to the shredder. R3 Robotics has implemented this tiered model—reuse, then second life, then recycling—in a project with Amazon: Batteries from Rivian vehicles in Amazon’s delivery fleet are disassembled. Intact modules are first used in stationary energy storage systems for solar installations; after all, Amazon is one of the world’s largest solar operators. Only at the end of this second life are the materials sent for recycling. Clean disassembly is the enabler for all three stages. Growing market, growing pressure The market dynamics are clear: According to Global Market Insights, the European market for lithium-ion battery recycling is estimated at around $2 billion in 2025, with an expected annual growth rate of around 20 percent through 2034. According to Fraunhofer ISI, European pre-treatment capacity has doubled to around 300,000 tons per year by the end of 2024. By 2040, Strategy& (PwC) expects 6 million tons of end-of-life batteries in the European market alone. On the demand side, the EU Battery Regulation (2023/1542) sets the framework: It requires manufacturers to take back end-of-life

Battery-News provides an overview of companies in the field of Quality Assurance for lithium-ion batteries in Europe. The underlying data come from official announcements by the respective players and reliable sources from the battery production environment. The map was first published as part of the “Battery Atlas 2026.” A high-resolution file is available as a free download. If a company is missing or if there are general comments, the Battery-News editorial team will be happy to receive a message.

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