EV Batteries Difficult to Recycle: The Problem is Cell-to-Pack, the Solution is Robotic
Disassembly is the real bottleneck in the recycling of EV batteries, not metallurgy. With the increasing prevalence of cell-to-pack (CTP) architectures, this phase has become even more critical: cells integrated directly into the pack without an intermediate modular layer make disassembly complex and the recovery of individual cells practically impossible.
R3 Robotics, a Luxembourg startup founded by Antoine Welter and Xavier Kohl (PhD in Chemical Soft Robotics at ETH Zurich), has built a robotic platform to address this upstream problem. Last February, it closed a €20 million round to scale the technology.
CTP: Energy Efficiency, Complicated End-of-Life
In cell-to-pack architectures, the cells are integrated directly into the structure of the pack, with direct advantages in energy density and production costs. The problem arises at the end of life: without modular separation, disassembly requires direct intervention on the cells, often encapsulated in structural materials. The economic consequences are immediate: with non-dismountable CTP packs, the battery ceases to be a sellable asset and becomes a cost to be borne: instead of receiving money for the materials, the OEM pays the recycler to get rid of it. Many European plants already refuse these packs.
R3 Robotics operates a certified facility in Kuppenheim, near Karlsruhe, which serves as an operational plant, development laboratory, and demonstration center for industrial customers, who in Europe mostly work with certified facilities. The system combines computer vision, AI, and customized end-effectors to autonomously recognize the architecture of the pack and initiate the corresponding disassembly procedure. The nominal capacity is about 1,600 tons/year operating at 1.5 shifts; the system can handle two types of packs simultaneously. This procedure is necessary because recycling facilities receive mixed, unselected batches of packs.
The company refers to specific hardware/software combinations for each pack architecture as "skills," developing 2-3 new ones per quarter, a pace dictated by the rapid evolution of automotive designs. Robotic systems alone aren’t sufficient: dedicated end-effectors, trained computer vision, and process knowledge on how hardware and software work together are required. The proposed mid-term business model is Robotics-as-a-Service: systems installed directly at the customer (recyclers or OEMs) to eliminate logistics costs and regulatory constraints related to transporting high-voltage systems. R3 Robotics is already working with Fortum Battery Recycling, one of the major integrated battery recycling players in Europe, for the adoption of technology on an industrial scale.
Amazon, Rivian and the Circular Hierarchy
An already operational project involves Amazon’s fleet of delivery vans with Rivian vehicles. End-of-life batteries are disassembled by R3 Robotics: intact modules are repurposed into stationary storage systems for Amazon's photovoltaic plants, which is among the largest solar operators in the world. Only when these modules are no longer usable even as storage do the materials go for chemical recycling to recover lithium, cobalt, and nickel.
Market, Regulations, and the European Black Mass Game
The market context is rapidly expanding: according to Global Market Insights, the European lithium battery recycling market is worth about €2 billion in 2025, with an expected annual growth of around 20% until 2034. Strategy& (PwC) predicts over €2 billion in investments in the European sector by 2030 and a revenue potential of up to €8 billion by 2040, with 6 million tons of end-of-life batteries to be managed in the European market alone. The European pre-treatment capacity has already doubled, reaching about 300,000 tons/year by the end of 2024 (Fraunhofer ISI).
The EU Regulation 2023/1542 sets binding recovery targets: 80% for lithium by 2031, 95% for cobalt, copper, nickel, and lead. Starting in 2031, minimum recycled content requirements in new batteries will kick in: 16% cobalt, 6% lithium, 6% nickel. By the end of 2025, recyclers were already required to achieve 65% efficiency for lithium batteries. In this context, the quality of disassembly, and the resulting black mass, has become a direct competitive variable. Those processing high-quality black mass in Europe, without exporting it to Asia for refining, effectively close the loop and build European independence on critical raw materials. This is the competitive landscape for the sector over the next decade.