Deep dive: Battery recycling & second-life applications — the fastest-moving subsegments to watch

The global lithium-ion battery recycling market reached $12.8 billion in 2025, up from $6.5 billion just two years earlier, and is projected to surpass $35 billion by 2030 according to Circular Energy Storage's annual market tracker. Across the Asia-Pacific region, where more than 75% of the world's EV batteries are manufactured, governments and companies are racing to build recycling infrastructure capable of handling the first major wave of end-of-life EV batteries, estimated at 1.5 million metric tons of retired packs annually by 2030. For procurement teams responsible for securing critical materials and managing battery lifecycle costs, understanding which subsegments are moving fastest is no longer optional: it is a competitive necessity that directly impacts supply chain resilience and regulatory compliance.

Why It Matters

The battery recycling and second-life ecosystem sits at the intersection of three powerful forces: resource scarcity, regulatory pressure, and economic incentive. Lithium, cobalt, nickel, and manganese are finite resources concentrated in a small number of producing countries. The Democratic Republic of Congo supplies roughly 70% of global cobalt, while Australia, Chile, and China dominate lithium production. Supply chain disruptions, geopolitical tensions, and export restrictions have driven lithium carbonate prices from $6,000 per metric ton in 2020 to peaks above $80,000 in late 2022, before settling at $12,000 to $18,000 in 2025 (Benchmark Mineral Intelligence, 2025). Recycling offers a domestic source of these critical minerals, reducing import dependency and price volatility.

Regulatory frameworks are accelerating the shift. The EU Battery Regulation, which entered into force in August 2024, mandates minimum recycled content thresholds starting in 2031: 16% for cobalt, 6% for lithium, and 6% for nickel in new EV batteries. China's Ministry of Industry and Information Technology (MIIT) extended its battery traceability requirements in 2025 to cover all commercial vehicles and require manufacturers to take back retired batteries within 30 days of notification. South Korea's Eco-Assurance System requires battery manufacturers to disclose recycled content percentages and end-of-life management plans. These regulations are creating guaranteed demand for recycled battery materials at industrial scale.

The economic case is strengthening as well. Hydrometallurgical recycling of NMC (nickel-manganese-cobalt) batteries now recovers materials valued at $4,500 to $7,200 per metric ton of input feedstock, against processing costs of $2,800 to $4,000 per metric ton, yielding positive margins even at current depressed commodity prices (Argonne National Laboratory, 2025). For LFP (lithium iron phosphate) batteries, which contain no cobalt or nickel, lithium recovery economics have improved dramatically with direct recycling techniques that preserve cathode crystal structure, reducing processing costs by 40 to 60% compared to conventional hydrometallurgy.

Key Concepts

Hydrometallurgical recycling uses aqueous chemical solutions to dissolve and separate battery metals. The process typically involves shredding, thermal pretreatment to remove electrolyte, leaching in acid solutions, and sequential precipitation or solvent extraction to isolate individual metals at battery-grade purity (>99.5%). This is the dominant commercial approach, used by Brunp Recycling (a CATL subsidiary), SungEel HiTech, and Umicore.

Pyrometallurgical recycling uses high-temperature smelting (1,200 to 1,500 degrees Celsius) to reduce battery materials to a mixed metal alloy, which is then refined through hydrometallurgical steps. The approach is energy-intensive and typically does not recover lithium economically, but it accepts mixed feedstocks with minimal sorting. Glencore's Sudbury facility and Umicore's Hoboken plant use pyrometallurgical front ends.

Direct recycling preserves the cathode material's crystal structure through relithiation and resynthesis, producing battery-grade cathode powder without full chemical decomposition. This approach offers significant energy and cost savings (50 to 70% lower processing energy) but requires precise sorting by cathode chemistry and is sensitive to feedstock variability.

Second-life applications repurpose retired EV batteries that retain 70 to 80% of original capacity for less demanding applications such as stationary energy storage, telecom backup power, and commercial building load shifting. Batteries in second-life applications can operate for an additional 5 to 10 years before reaching the 50 to 60% capacity threshold at which recycling becomes the appropriate end-of-life pathway.

Battery passports are digital records that track a battery's manufacturing origin, chemistry, state of health (SoH), charge-discharge history, and material composition throughout its lifecycle. The EU Battery Regulation mandates battery passports for all EV batteries from February 2027, and China's traceability platform already covers 14.6 million battery packs as of Q4 2025.

What's Working

Hydrometallurgical Scale-Up in China and South Korea

China's battery recycling capacity has expanded from 120,000 metric tons per year in 2022 to over 680,000 metric tons per year in 2025, driven primarily by Brunp Recycling, GEM Co., and Huayou Cobalt. Brunp's Changsha facility, the world's largest single-site battery recycling operation, processes 200,000 metric tons of battery scrap annually and recovers lithium at 91% efficiency, cobalt at 98.5%, and nickel at 98.7%. The recovered materials are fed directly to CATL's adjacent cathode precursor production lines, creating a closed-loop supply chain that reduces CATL's dependency on virgin material imports by approximately 25% for cobalt and 15% for nickel (CATL, 2025).

South Korea's SungEel HiTech has commissioned three recycling facilities across Asia-Pacific, with combined capacity of 65,000 metric tons per year. The company's proprietary hydrometallurgical process achieves lithium recovery rates of 94%, among the highest in the industry, and produces lithium carbonate at 99.5% purity suitable for direct use in cathode production. SungEel's partnership with Hyundai Motor Group guarantees feedstock supply from Hyundai's end-of-life EV battery returns and manufacturing scrap, providing the volume predictability that underpins facility investment economics.

Second-Life Stationary Storage Deployments

Japan's 4R Energy Corporation, a joint venture between Nissan and Sumitomo, has deployed over 600 MWh of second-life battery storage systems using retired Nissan Leaf battery packs. The largest single installation, a 20 MWh system at a commercial facility in Osaka, provides peak shaving and demand response services that generate $180,000 to $240,000 per year in utility cost savings for the site operator, against a system installation cost roughly 40% lower than equivalent new battery storage (4R Energy, 2025).

In Australia, Relectrify's BMS (battery management system) technology enables heterogeneous second-life battery packs with mixed degradation profiles to operate together in stationary storage applications. The company's inverter-integrated BMS individually manages each cell module, compensating for capacity variation and extending usable system life by 30 to 50% compared to conventional series-string architectures. Relectrify has deployed 45 MWh of second-life storage across 18 sites in Australia and Southeast Asia, primarily for commercial and industrial customers seeking to reduce peak demand charges.

Direct Recycling Pilot Commercialization

The Battery Technology Research Facility at Argonne National Laboratory, in partnership with ReCell Center consortium members including Li Industries and Battery Resources, has demonstrated direct cathode recycling at a 500 kg per day pilot line. The process uses a targeted relithiation step to restore degraded NMC cathode powder to its original stoichiometry, producing cathode material with electrochemical performance within 2 to 3% of virgin material at approximately 40% lower cost. Li Industries is scaling this technology to a 5,000 metric tons per year commercial facility in Fernley, Nevada, with commissioning expected in Q3 2026 (ReCell Center, 2025).

In Japan, JX Metals has developed a direct recycling process for LFP batteries that uses a hydrothermal relithiation step to regenerate cathode powder in a single reactor, reducing process steps from seven (in conventional hydrometallurgy) to three. The company's pilot facility in Hitachi processes 50 metric tons per month and has delivered relithiated LFP cathode to AESC (formerly Nissan's battery division) for qualification testing in new cells.

What's Not Working

LFP Recycling Economics at Low Lithium Prices

LFP batteries, which now represent over 60% of new EV battery installations in China, contain no cobalt or nickel: lithium is the only high-value recoverable metal. At current lithium carbonate prices of $12,000 to $18,000 per metric ton, conventional hydrometallurgical recycling of LFP batteries yields only $800 to $1,200 per metric ton of input feedstock, below breakeven processing costs of $1,500 to $2,500 per metric ton. This creates a perverse incentive where LFP batteries are stockpiled rather than recycled, contributing to a growing inventory of unprocessed retired packs estimated at 350,000 metric tons across China (China Battery Industry Association, 2025). Direct recycling offers a potential path to economic viability for LFP, but commercial-scale facilities are still 12 to 24 months from operation.

Feedstock Collection and Logistics Fragmentation

Battery recycling facilities require consistent feedstock supply to operate efficiently, but collection networks in most Asia-Pacific markets remain fragmented. In India, where two-wheeler and three-wheeler EV adoption is growing at 45% annually, there is no centralized collection system for retired lithium-ion batteries. Informal recyclers, who lack the equipment to safely handle lithium-ion cells, process an estimated 30 to 40% of retired batteries in uncontrolled conditions, posing fire hazards and environmental contamination risks (Centre for Science and Environment, 2025). Even in mature markets like Japan, battery collection rates for consumer electronics batteries remain below 30%, though EV battery return rates are significantly higher at 85 to 90% due to automaker take-back programs.

State-of-Health Assessment Bottlenecks

Second-life battery applications require accurate state-of-health assessment to grade, sort, and warranty retired packs. Current SoH testing methods, typically involving full charge-discharge cycling at controlled temperatures, require 8 to 24 hours per pack and specialized equipment costing $200,000 to $500,000 per test station. This creates a throughput bottleneck that limits second-life processing to 50 to 100 packs per day at most facilities. Rapid SoH assessment using electrochemical impedance spectroscopy (EIS) or machine learning-based prediction from partial charge curves is being developed by companies including TWAICE and Voltaiq, but validation against real-world degradation patterns across diverse battery chemistries and usage histories remains incomplete.

Key Players

Established Companies

• Brunp Recycling (CATL subsidiary): Largest global battery recycler with 200,000+ metric tons per year capacity in Changsha, China, operating closed-loop supply to CATL's cathode production.
• GEM Co.: China's second-largest recycler, processing 150,000 metric tons per year across four facilities, with partnerships covering 60% of Chinese automakers' battery returns.
• Umicore: Belgian materials technology company operating hydrometallurgical recycling at its Hoboken facility and building a dedicated EV battery recycling plant in Antwerp with 35,000 metric tons per year capacity.
• SungEel HiTech: South Korean recycler with 65,000 metric tons per year capacity and partnerships with Hyundai, achieving 94% lithium recovery rates.
• JX Metals: Japanese metals company developing direct recycling processes for LFP batteries, with pilot operations in Hitachi.

Startups

• Li Industries: US-based direct recycling company scaling Argonne/ReCell technology to commercial production, targeting 5,000 metric tons per year in 2026.
• Relectrify: Australian startup developing BMS technology for second-life battery applications, with 45 MWh deployed across Asia-Pacific.
• Battery Resources: Belgian-US company operating direct recycling pilot facilities producing cathode-grade material at 40% lower cost than virgin equivalents.
• TES (formerly known as TES-AMM): Singaporean company building a 30,000 metric tons per year recycling hub in Singapore for Southeast Asian feedstock.

Investors and Funders

• Breakthrough Energy Ventures: Invested $60 million in direct recycling technology companies including Li Industries.
• LGES Ventures (LG Energy Solution): Strategic investments in recycling startups across the Asia-Pacific region totaling $180 million since 2023.
• Japan Green Innovation Fund (NEDO): Allocated JPY 50 billion ($340 million) for battery recycling and second-life technology development through 2028.

Action Checklist

• Audit current battery procurement contracts for end-of-life take-back obligations, recycled content commitments, and battery passport data requirements
• Map retired battery volumes by chemistry (NMC, LFP, NCA) and forecast when each category reaches recycling-relevant scale in your supply chain
• Establish relationships with at least two qualified recyclers in each operating region to ensure competitive pricing and feedstock offtake flexibility
• Evaluate second-life battery storage for owned facilities where retired EV fleet batteries can reduce peak demand charges at 30 to 50% lower cost than new systems
• Implement battery passport data collection aligned with EU Battery Regulation requirements, even for non-EU markets, to prepare for regulatory convergence
• Include recycled content sourcing options in cathode material RFPs and negotiate price-adjustment mechanisms linked to virgin material commodity indices
• Request third-party verification of recycler metal recovery rates and environmental compliance as part of supplier qualification

FAQ

Q: What lithium recovery rates should procurement teams expect from recycling partners? A: State-of-the-art hydrometallurgical processes now achieve 90 to 94% lithium recovery at battery-grade purity (>99.5% lithium carbonate). Direct recycling processes in pilot stage report even higher effective recovery because they preserve the cathode structure rather than dissolving and resynthesizing. When evaluating recyclers, request audited recovery rate data across at least 12 months of operation, as short-term pilot results often overstate sustained commercial performance. Facilities consistently below 85% lithium recovery are likely using older process technology that will not remain cost-competitive.

Q: How do second-life batteries compare to new batteries for stationary storage applications? A: Second-life EV batteries typically offer 70 to 80% of original nameplate capacity and can be procured at 30 to 50% lower cost per kWh than new lithium-ion storage systems. The trade-off is shorter remaining useful life (5 to 10 years versus 15 to 20 years for new systems), higher integration costs due to pack heterogeneity, and limited warranty coverage (typically 3 to 5 years versus 10+ years for new systems). Applications with moderate cycling requirements and tolerance for capacity degradation, such as peak shaving, backup power, and solar self-consumption, are best suited. High-cycling applications like frequency regulation typically degrade second-life batteries too rapidly to justify the upfront savings.

Q: How will EU Battery Regulation recycled content mandates affect Asia-Pacific battery supply chains? A: The 2031 recycled content requirements (16% cobalt, 6% lithium, 6% nickel) apply to all batteries placed on the EU market regardless of manufacturing origin. Asia-Pacific battery manufacturers exporting to Europe will need to either source recycled materials domestically and document chain of custody, or partner with EU-based recyclers who can supply certified recycled content. Chinese manufacturers including CATL and BYD are already building recycling capacity partly to meet these requirements. Procurement teams should begin tracking recycled content availability and pricing now, as the 2031 deadline is within a single battery development cycle for most manufacturers.

Q: What are the fire and safety risks in battery recycling operations? A: Lithium-ion battery recycling involves handling cells that may retain residual charge and contain flammable electrolyte solvents. Thermal runaway events during shredding or storage have caused facility fires at recycling operations in South Korea (2023), Germany (2024), and the United States (2024). Best practices include: discharging cells to below 1V before processing, using inert atmosphere (nitrogen or CO2) shredding systems, maintaining thermal monitoring with IR cameras on battery storage areas, and implementing automated fire suppression with Class D extinguishing agents. Procurement teams should verify that recycling partners hold ISO 14001 and local fire safety certifications and maintain incident-free operation records.

Sources

• Benchmark Mineral Intelligence. (2025). Lithium Ion Battery Raw Material Price Index: Q4 2025 Update. London: Benchmark Mineral Intelligence Ltd.
• Argonne National Laboratory. (2025). ReCell Center Annual Report: Direct Recycling Technology Readiness and Economics. Lemont, IL: Argonne National Laboratory.
• CATL. (2025). 2024 Sustainability Report: Closed-Loop Battery Material Recycling. Ningde, China: Contemporary Amperex Technology Co., Limited.
• Circular Energy Storage. (2025). Global Lithium-Ion Battery Recycling Market Report 2025. London: Circular Energy Storage Research and Consulting.
• 4R Energy Corporation. (2025). Second-Life Battery Storage: Deployment Results and Performance Data 2020-2025. Yokohama, Japan: 4R Energy Corporation.
• Centre for Science and Environment. (2025). Lithium-Ion Battery Waste Management in India: Status, Challenges, and Policy Recommendations. New Delhi: CSE.
• China Battery Industry Association. (2025). Annual Report on Battery Recycling and Utilization in China. Beijing: CBIA.
• ReCell Center. (2025). Direct Cathode Recycling: Pilot-Scale Results and Commercialization Pathway. Lemont, IL: Argonne National Laboratory.