WASHINGTON, July 14 — Battery recycling is no longer a niche environmental concern. It’s becoming a major industrial sector, and the numbers bear that out. The global lithium-ion battery recycling market was valued at $6.5 billion in 2022, and according to Allied Market Research, it’s expected to reach $35.1 billion by 2031.
That kind of growth signals a fundamental shift in how we think about the batteries powering everything from phones to electric vehicles. So how do you actually recycle a lithium-ion battery?
There are two main approaches, and they work very differently. The first method, pyrometallurgical recycling, uses high-temperature smelting, above 1400°C, to recover metals like cobalt, nickel, and copper. Lithium and aluminum are lost to the slag — the glassy waste material that forms on top.
The second method, hydrometallurgical recycling, uses chemical leaching with acids or bases at much lower temperatures, below 100°C. This process can recover up to 95% of lithium, cobalt, nickel, and manganese.
A real-world example
One company leading the charge is Redwood Materials, founded in 2017 by JB Straubel. Redwood uses a hydrometallurgical process that recovers over 95% of these metals. Here’s how it works in practice.
The process starts with discharging and dismantling spent batteries. Then the batteries are shredded into a material called ‘black mass,’ which contains the active materials.
Redwood isn’t just recycling, though. In 2023, the company announced a $3.5 billion facility in South Carolina to produce anode and cathode components from recycled materials.
The research front
Meanwhile, the U.S. Department of Energy’s ReCell Center, established in 2019 at Argonne National Laboratory, is focused on advancing direct cathode recycling, which preserves the cathode structure for reuse. For ordinary readers, here’s what it means. Every lithium-ion battery you use — in your laptop, your power tools, your electric vehicle — contains materials that can be recovered and reused.
The industry is moving from a linear model (mine, make, dispose) to a circular one (make, use, recycle, remake). And with the market projected to grow more than fivefold by 2031, that circular economy is becoming big business.
What to watch next: how quickly these recycling technologies scale up to match the flood of batteries that will need processing as electric vehicle adoption grows. The infrastructure is being built now, but the real test will come when millions of EV batteries reach end of life in the coming decade.
Sources
{“@context”: “https://schema.org”, “@type”: “NewsArticle”, “headline”: “Lithium-Ion Battery Recycling: Pyrometallurgical & Hydrometallurgical Methods”, “description”: “WASHINGTON, July 14 — Battery recycling is no longer a niche environmental concern. It’s becoming a major industrial sector, and the numbers bear that out….”, “datePublished”: “2026-07-14T09:30:00+00:00”, “author”: {“@type”: “Person”, “name”: “Erika Johnson”}, “publisher”: {“@type”: “Organization”, “name”: “InfoPulse Today”, “url”: “https://newsfeed.infopulsetoday.com/”}, “citation”: [{“@type”: “CreativeWork”, “url”: “https://en.wikipedia.org/wiki/Battery_recycling”}]}
