Battery recycling for BESS: EU Battery Regulation & recycling targets up to 2030 at a glance

Battery recycling is mandatory. By the end of 2030, at least 70 % of the average weight of lithium batteries must be recycled. The recovery rates are set at 80 % for lithium and 95 % for cobalt, copper, nickel, and lead. For operators of stationary Battery storage (BESS), given the variety of cell chemistries, this is more than a distant disposal issue. The EU Battery Regulation (EU) 2023/1542 is already impacting the planning, operation, and decommissioning of storage projects today. This applies in particular to BESS, which predominantly use LFP cells today.

Why battery recycling is becoming important for BESS now

The installed energy storage capacity in Germany and Europe has been growing at double-digit rates for years – driven by the expansion of photovoltaics, Flexibility marketing and the increasing role of front-the-meter storage in system balancing. With this growth dynamic, the other end of the life cycle inevitably moves into focus: what happens when storage systems reach their economic useful life after 10 to 20 years of operation?

Three developments are increasing the relevance of the topic:

• First expansion wave is nearing the end of its lifecycle. Early large-scale stationary storage projects from the 2015 and 2016 vintages are increasingly reaching the end of their technical and economic lifespans.
• Regulatory pressure is increasing. For the first time, the EU Battery Regulation establishes mandatory recycling efficiency and recovery targets specifically for lithium batteries—previously, there were no uniform EU targets for this.
• Securing raw materials is becoming a strategic priority. Lithium, cobalt and nickel are considered critical raw materials. With this regulation, the EU explicitly pursues the goal of reducing dependency on primary raw material imports through a functioning circular economy.

For operators, investors, and project developers, this means that end-of-life planning is no longer an afterthought, but rather belongs in the project calculations right from the start.

What is meant by battery recycling in BESS?

Recycling, Second Life, and Disposal – A Necessary Distinction

In practice, the terms recycling, second life, and disposal are often used synonymously – legally and technically, however, they must be clearly distinguished. The EU Battery Regulation itself cleanly separates these pathways: Article 59 regulates repurposing and remanufacturing, and Article 57 regulates recycling efficiency and material recovery. Here is an overview:

This distinction is more than mere semantics: it determines which Duties take action, whoever subject to reporting requirements is and which commercial exploitation channels are permissible at all.

Differences Between Device Batteries and Traction Batteries

The EU Battery Regulation distinguishes five battery categories:

• Device batteries
• Batteries for light electric vehicles (LEV) Low Voltage)
• Starter batteries (SLI = Starting, Lighting, Ignition)
• Electric vehicle batteries (EV = Electric Vehicle)
• Industrial batteries

Stationary BESS with a capacity of 2 kWh and above fall into the category of rechargeable industrial batteries – not under electric vehicle batteries, even though both frequently use the same cell chemistry. This has practical consequences: Industrial batteries are subject to their own, sometimes later deadlines for the carbon footprint declaration, minimum values for electrochemical performance, and labeling than EV batteries. Anyone researching BESS recycling therefore quickly ends up with EV-focused information that only applies to a limited extent to stationary applications.

Typical battery chemistries in stationary energy storage systems

In the BESS segment, lithium-iron-phosphate ( currently dominates by a wide marginLFP cells), followed by lithium nickel manganese cobalt oxide (NMC) in older or specialized facilities. Both are legally considered lithium batteries under the regulation. The Chemical mixture is relevant for recyclingLFP cells contain no cobalt and significantly less nickel, which tends to make economic recycling more difficult because the material value per ton is lower than that of chemistries containing cobalt.

The life cycle of a BESS from a recycling perspective

Recyclability is not just decided at the end of life, but in three phases:

1. Planning and component selection. Already during system selection, it is possible to influence how easily a storage system can later be dismantled and recycled – for example, by choosing modular rack systems instead of fully integrated, bonded designs.
2. Operation, monitoring, and condition assessment. Over its lifetime, the battery management system (BMS) continuously provides data on the state of health, internal resistance, and remaining capacity. This data is not only relevant for economical operation, but also forms the basis for the subsequent decision between second life and recycling – and, starting in 2027, will be a component of the digital battery passport.
3. Decommissioning, transport, and end-of-life treatment. The actual end-of-life process begins with safe on-site dismantling, followed by hazardous goods transport to certified recycling facilities and the actual treatment. Each of these stages is subject to its own requirements – from labeling obligations to documentation in accordance with Annex XII of the Regulation.

Technical challenges in battery recycling

Industrial-scale battery recycling is more complex than recycling traditional recyclable materials. Key challenges:

• Security risks from residual energy. Dismantled modules may still contain residual charge at the end of their life. Short circuits, thermal runaway, and fire risks require specialized handling, storage, and transport logistics in accordance with dangerous goods regulations.
• Heterogeneous system architectures. Unlike EV batteries, for example, which feature relatively standardized formats from major manufacturers, BESS systems vary greatly among providers—different rack, module, and cell formats complicate automated disassembly processes.
• Complex dismantling. Bonded cell assemblies, complex wiring, and integrated cooling or fire protection systems make manual or semi-automated dismantling time-consuming and costly.
• Lack of standardization of analytical methods. The calculation of recycling efficiency and the material recovery rate according to the new methodology of the EU Commission presents recycling companies with new documentation requirements, the practical implementation of which is still being established across the industry.

What recycling processes are there?

For the processing of lithium-ion cells, essentially three families of processes have been established:

Mechanical pretreatment. Shredding and sorting of modules and cells into so-called “black mass” – a mixture of active materials that serves as the raw material for further hydro- or pyrometallurgical processing. This step is largely established industrially today.

Hydrometallurgical processes. The black mass is chemically digested, usually via acid leaching, to selectively recover lithium, cobalt, nickel, and copper in high purity. Hydrometallurgy generally achieves the highest recovery rates, especially for lithium, but is more complex in terms of process technology.

Pyrometallurgical processes. Smelting at high temperatures to recover metal alloys of cobalt, nickel, and copper. Established and robust against heterogeneous input streams, but with the disadvantage that lithium frequently passes into the slag and can only be recovered with additional effort—a point that is gaining in importance in view of the new 80 percent recovery rate for lithium.

Combined and new approaches. In practice, many plants rely on a combination of mechanical pretreatment and downstream hydrometallurgy to optimize both throughput and recovery rates. Direct recycling processes that regenerate cathode material without complete chemical digestion are still predominantly in the pilot stage.

What raw materials are recovered in battery recycling?

Primarily, the following materials can be recovered from the recycling of lithium-ion batteries:

• Lithium – central component of the electrolyte and the cathode, with a comparatively low material value per kilogram, but high strategic importance for securing raw materials.
• Nickel and cobalt - primarily contained in NMC cells, with high market value and established recovery processes.
• Copper – made of current collectors and cabling, technically easy to recover.
• Aluminum – consisting of casings and current collectors, also with established recycling routes outside of battery-specific processes.

For reuse in new batteries, alongside the recovery rate, the most important factor is especially the material purity crucial: Only sufficiently pure secondary material can be used directly in battery production; otherwise, its value drops to the level of a raw material for other industries. Currently, cobalt and nickel fractions are the most economically valuable, whereas lithium, despite its strategic relevance, has a lower material value per ton—one reason why LFP-dominated BESS inventories require a different economic calculation for the recycling business model than the EV sector.

Regulation and legal framework

Overview of the EU Battery Regulation (EU) 2023/1542

Regulation (EU) 2023/1542 entered into force on August 17, 2023 and has applied since February 18, 2024 directly in all Member States – without national implementation, unlike the previous Batteries Directive 2006/66/EC. In Germany, the new Battery Law Implementation Act (BattDG) is replacing the previous Battery Act (BattG).

Overview of deadlines for BESS-relevant obligations

Note: Several deadlines are tied to the publication of pending delegated acts by the European Commission and may be postponed.

Obligations for Manufacturers, Operators, and Waste Disposal Companies

The regulation assigns responsibilities throughout the entire value chain:

• Manufacturer bear the costs and organizational responsibility for the collection and recycling of their batteries at the end of their life under extended producer responsibility.
• Operators & Business Stakeholders, those who wish to repurpose the BESS must, pursuant to Article 59, be granted access to the BMS data in order to reliably document the state of aging.
• Recycling facilities must comply with the minimum targets for recycling efficiency and material recovery set out in Annex XII and document their results using a uniform methodology specified by the Commission.

Profitability & Market Opportunities

Whether battery recycling makes economic sense depends largely on three factors:

Commodity prices. Since nickel and cobalt have a significantly higher material value per metric ton than lithium, NMC-heavy return volumes are more economically attractive than the increasingly LFP-dominated inventory in the stationary storage market. With rising lithium prices and a regulatory requirement for 80 percent recovery, this calculation is likely to shift in the medium term.

Return Volumes and Scaling. Recycling facilities require a minimum throughput to operate profitably. Since the first major wave of BESS rollouts is only now entering the end-of-life phase, recycling capacity in Europe is still being developed—with corresponding economies of scale expected in the coming years.

Standardized processes. The more heterogeneous the incoming system architectures are, the more expensive the pre-treatment becomes. Standardized, well-documented storage systems significantly reduce recycling costs per metric ton—a factor that should also be taken into account in the economic analysis of storage projects over their entire lifecycle.

Depending on the application, cycles, load, and maintenance, the State of Health A BESS still maintains a capacity of over 80 % after 10 years, as confirmed by the partners at CUBE CONCEPTS. The distinction between “second life” and “recycling” can therefore be translated into concrete decision-making criteria for practical application:

Criteria for a secondary use:

• The remaining capacity is typically still well above the range at which the primary application has become uneconomical.
• The state of health is reliably documented via BMS data.
• Target application has lower requirements for cycle stability or power density than the original use

Typical Second Life use cases For BESS components, applications with lower stress profiles are suitable, such as stationary buffer storage systems with reduced cycle requirements or for backup power. FTM applications for Control energy with lower performance and capacity.

When recycling is the better solution: As soon as the remaining capacity has dropped to the point where a commercially viable secondary application no longer exists, or if safety risks—such as from damaged cells—preclude further use, material recycling is the correct path from both a regulatory and economic perspective. The decision should fundamentally be made on the basis of documented BMS data, not on the basis of the system's chronological age alone.

„Design for Recycling as a future strategy

An increasingly discussed approach shifts recyclability to the beginning of the life cycle:

• Modular design and easy disassembly significantly reduce the effort required for mechanical pretreatment and thus lower recycling costs.
• Standardization of interfaces and components cross-manufacturer standardization would defuse the currently heterogeneous system landscape in the BESS market – a process that is still in its early stages in the industry.
• Data availability for diagnosis and dismantling, such as through the digital battery passport that will be mandatory starting in 2027, creates the basis for ensuring that condition data does not have to be reconstructed only at the end of its life, but is available continuously.

For operators planning new storage projects today, it is worth looking at these criteria when selecting a manufacturer—not because recycling is imminent in the coming years, but because regulatory requirements and documentation obligations will continue to tighten over the entire lifespan.

Conclusion

Battery recycling is no longer a downstream disposal issue for stationary storage operators, but a strategic factor connecting technology, regulation, and economic viability across the entire lifecycle. With concrete recycling efficiency and recovery rates—70 percent by 2030 for lithium batteries overall, 80 percent for lithium, and 95 percent for cobalt, copper, nickel, and lead—the EU Battery Regulation is creating a binding framework for the first time that directly impacts the planning, operation, and decommissioning of BESS.

Anyone who plans or operates storage projects today should consider the end of life early on: in component selection, ongoing monitoring, and the timely clarification of which path—second life or recycling—is the right one at the end of the service life.

Frequently Asked Questions