For most of the lithium-ion era, recycling meant disposal: deal with the dead battery so it doesn't become a hazard. That framing is changing fast, and the patents are where you can see it. Recovering the lithium, nickel, and cobalt from a spent cell is increasingly treated as mining an above-ground ore body — a source of supply, not a cost of cleanup.
Follow the cells, as this desk does. CATL — through its Hong Kong entity — holds grant US12304826B2 (2025), whose title says it all: a method for producing lithium iron phosphate precursor "by using retired lithium iron phosphate battery as raw material." The world's largest cell maker is patenting how to turn its own dead LFP cells back into cathode feedstock. Hulico's US12646765B2 (2026) claims processing a battery electrode assembly to recover electrode material. DOWA Eco-System's US12649960B2 (2026) covers recovering valuable substances, sitting in CPC H01M 10/54 — the code for reclaiming materials from waste cells.
The strategic logic is supply security. Battery raw materials are concentrated in a handful of countries and exposed to price and policy shocks. A recycler that can reliably recover battery-grade metals — or, better, jump straight to cathode precursors as CATL's patent claims — becomes a domestic, price-stable supply node. That's worth far more than tipping fees.
The take-or-pay instinct applies here too: the value of a recycling operation depends on feedstock it can count on. A cell maker that recycles its own retired packs has a closed loop — guaranteed input, guaranteed offtake for the recovered material. That vertical integration is exactly what the CATL patent enables, and it's why the most aggressive recycling IP is coming from cell makers themselves, not standalone scrap processors.
For the business read: when a storage or cell company discusses recycling in its disclosures, the question is whether it's framed as compliance cost or as raw-material strategy. The patents here are firmly in the second camp. Recovered LFP precursor and reclaimed nickel aren't waste-management line items; they're an emerging, partially captive supply chain.
These are process patents, not proof of economic recovery at scale — recycling economics still hinge on collection logistics and metal prices. But the timing and the assignees are the signal: in 2025-2026, the people patenting battery recycling are increasingly the people who make the batteries, because they've started counting the dead ones as inventory.