Battery Recycling

What it is

Battery recycling is the industrial recovery of lithium, cobalt, nickel, and manganese from end-of-life or defective lithium-ion batteries. Three process routes dominate. Pyrometallurgy uses high-temperature smelting to recover cobalt, nickel, and copper as alloys but loses most lithium and manganese to slag. Hydrometallurgy leaches shredded battery "black mass" with acids or bases to recover each metal separately at battery-grade purity, including lithium; it is the commercial standard for EV battery grades. Direct cathode recycling, still largely at research scale as of mid-2026, preserves the cathode's crystal structure, reducing re-synthesis energy costs. The principal commercial players as of July 2026 are Redwood Materials (Nevada, US), Glencore's acquired Li-Cycle network (North America and Europe), cylib and tozero (Germany), and GEM and Brunp, an affiliate of CATL (China). Huayou Cobalt operates integrated recycling in China and partners with tozero in Europe.

History

Lead-acid battery recycling achieved roughly 90% recovery rates in the United States for decades, the most mature closed-loop system for any battery chemistry. Lithium-ion recycling remained small-scale until the EV fleet grew large enough to generate meaningful volumes of spent batteries and manufacturing scrap. Chinese recyclers, integrated with CATL and Huayou, built black-mass processing capacity from roughly 2017. The US Department of Energy launched the ReCell Center at Argonne National Laboratory, Illinois, in 2019, funded at US$15 million over three years, to develop direct cathode recycling and narrow the gap with China. The European Union's Battery Regulation, Regulation (EU) 2023/1542, published in the EU Official Journal in July 2023, was the first binding legal framework to mandate minimum recycled content in batteries sold in the EU from August 2031. The 2023 lithium price collapse triggered the first Western shakeout: Li-Cycle suspended its Rochester Hub in New York in 2023, and Ascend Elements filed for bankruptcy in 2026.

Current state

As of mid-2026, China accounts for roughly two-thirds of global battery recycling capacity growth since 2020. Recovery rates for nickel and cobalt exceeded 40% of theoretically available feedstock in 2023; lithium reached roughly 20%, reflecting the greater technical difficulty of extracting lithium from black mass at battery grade. Recycled battery minerals carry on average 80% lower greenhouse gas emissions than primary mined equivalents. The commercial constraint is feedstock: the EV fleet sold between 2018 and 2022 remains largely in first service life, leaving end-of-life volumes thin before the early 2030s. The Western sector's 2026 consolidation round separated companies with proved hydrometallurgical capacity from undercapitalised startups that could not survive to commercial volumes. The EU digital battery passport requirement, taking effect February 2027, creates earlier compliance-driven revenue for recyclers able to supply traceability data to automakers ahead of the harder 2031 content mandates.

Relationships

The EU Battery Regulation is the structural demand driver: its August 2031 minimums of 16% cobalt, 6% lithium, and 6% nickel recycled content in EV batteries create contractual demand for recycled cathode that does not yet exist at scale. The US Inflation Reduction Act's foreign entity of concern provisions exclude Chinese-owned recyclers from IRA Section 45X tax credits, splitting the Western recycling market by jurisdiction and directing US capital toward FEOC-compliant domestic players such as Redwood Materials. Huayou Cobalt's partnership with tozero GmbH in Germany illustrates the resulting tension: Chinese-majority-owned materials companies are building EU Battery Passport compliant infrastructure in Europe, raising unresolved questions about EU Critical Raw Materials Act supply-chain diversification intent. The IEA's 2025 outlook projects recycling could supply 10-15% of global critical minerals demand by 2035, reducing cobalt mine development needs by more than 35% and lithium by over 20% by 2050.

What to watch

The February 2027 EU Battery Passport compliance deadline is the next hard gate, and how enforcement varies across EU member states will determine how much value recyclers can capture before 2031. The August 2031 minimum recycled-content mandates will test whether Western hydrometallurgical capacity has scaled to commercial volumes before the mandate bites. EV fleet age is the underlying variable: when the 2020-2024 cohort reaches end-of-life at scale, feedstock shortages ease and commercial economics for recyclers improve substantially. US FEOC policy, if adjusted to allow non-FEOC recycled content for domestically assembled vehicles sold outside the US, would reshape global capital allocation in the sector.