For years, the biggest question hanging over the EV transition wasn't range or charging speed — it was what happens to all these batteries once cars are retired. In 2026, a clear answer has emerged, and it's turning into one of the industry's fastest-growing storylines: instead of being scrapped, retired and end-of-line EV battery packs are being redeployed almost directly into stationary energy storage systems, feeding factories, data centers, and eventually the grid itself — before they're ever fully recycled.
🔋 Why It's Trending Now: Lithium carbonate prices at the start of 2026 were more than twice as high as the same period in 2025, driven by surging demand from battery storage and tight Chinese supply. That price spike is putting new urgency behind every strategy that reduces reliance on freshly mined lithium — recycling and second-life reuse chief among them.
Redwood Materials' Two-Track Strategy
Redwood Materials, founded by former Tesla CTO JB Straubel, has built the largest lithium-ion battery recycling operation in North America, recovering more than 95% of the lithium, cobalt, nickel, and copper from the packs it processes. But in June 2025, the company launched a second business line, Redwood Energy, specifically to repurpose used EV battery packs into low-cost stationary storage systems before they're ultimately recycled — squeezing a second useful life out of every pack.
That strategy is already shipping. In April 2026, Rivian and Redwood Materials announced a battery energy storage system at Rivian's Normal, Illinois manufacturing plant using more than 100 second-life Rivian battery packs, delivering 10 megawatt-hours of dispatchable power to cut costs and reduce grid load during peak demand. General Motors signed a similar non-binding agreement with Redwood in July 2025 to supply second-life packs for energy-storage manufacturing, building on an existing GM-supplied microgrid already running at Redwood's Nevada campus — currently the largest of its kind in North America.
📈 By the Numbers: Rivian cited an estimated 600 GWh of U.S. stationary storage demand by 2030 — implying roughly 31% compound annual growth for the domestic storage market between 2026 and 2030, far outpacing the roughly 6% CAGR projected for the broader U.S. grid.
Automakers Are Racing to Lock In Recycling Partners
Redwood's automaker roster extends well beyond Rivian and GM. Ford and Volvo were the program's first backers, funding a free take-back system for end-of-life hybrid and EV battery packs collected through dealer and dismantler networks in California. Volkswagen of America and Audi separately contracted with Redwood to recycle packs from their combined U.S. dealership network, routing recovered nickel, cobalt, lithium, and copper back into new cathode and anode materials for domestic battery manufacturers like Panasonic.
The Logistics Problem
Collection, not chemistry, has proven to be recycling's most stubborn cost center. In its own progress reporting, Redwood found that transporting and packaging end-of-life packs was consistently the most expensive part of the process — more so than the actual material recovery — a bottleneck the industry is now trying to solve through denser regional collection networks and expanding facility footprints.
Lyten Bets on Europe With the Former Northvolt Site
The second-life and recycling boom isn't limited to the U.S. In 2026, California-based Lyten — a lithium-sulfur battery maker backed by Stellantis, FedEx, and Honeywell — moved to acquire the Revolt battery recycling plant in Skellefteå, Sweden, one of Europe's largest fully integrated recycling facilities, with roughly 8,500 tonnes of annual processing capacity running entirely on fossil-free energy. The plant sits adjacent to a gigafactory site formerly operated by collapsed battery maker Northvolt, which Lyten is now restarting as part of a broader "Lyten Industrial Hub," alongside plans for a nearby data center campus that could scale up to 1 gigawatt of capacity.
- Second life comes before recycling, not instead of it: Every major program treats stationary storage reuse as a way to extract more value from a pack before it's eventually recycled for raw materials, not a replacement for recycling.
- Rising lithium prices are accelerating the shift: With lithium costs roughly double where they were a year earlier, recovered and reused materials are becoming more cost-competitive with freshly mined supply.
- Data centers are an unexpected demand driver: Redwood has explicitly targeted AI data centers and commercial sites facing grid constraints as customers for its second-life storage systems, not just utilities or automakers.
- Europe is consolidating around fewer, larger recyclers: Lyten's acquisition of a major Swedish recycling plant reflects a broader pattern of scale-driven consolidation in the European battery recycling sector.
What This Means Going Forward
The economics here are increasingly hard to ignore: a battery pack that's degraded to, say, 70% of its original EV-grade capacity is still a highly capable stationary storage asset, and diverting it into that role before recycling defers the cost of new raw materials and new manufacturing capacity at the exact moment lithium prices are rising. Expect more automakers to follow Rivian and GM's lead in the next year, particularly as the same softer EV demand trends putting pressure on battery plant utilization make second-life storage and recycling partnerships an attractive way to diversify revenue.
💡 Looking Ahead: As more EVs from the 2016-2020 sales boom reach end-of-life over the next several years, the volume of retired packs flowing into second-life storage and recycling pipelines is set to climb sharply — turning what was once viewed as an environmental liability into one of the battery industry's fastest-growing business lines.