Stockholm-based critical-materials recovery startup Refinyx exited stealth on September 25, 2026 with the acquisition of Northvolt Revolt's 134-patent battery-recycling portfolio and Swedish pilot facility, plus a debut US customer, positioning itself as the go-to engineering partner for large-scale battery-grade metal refineries.
Northvolt Revolt reborn as Refinyx
Refinyx is built around the senior technical team behind Northvolt Revolt, the recycling arm of the collapsed Swedish battery maker. The company acquired the 134-patent portfolio and a Västerås pilot facility that Refinyx says is engineered for 9,000 tonnes per year of battery-grade metal output, with 99.9% product purity and greater than 97% metal recovery from black mass. Unlike incumbent hydromet processes, the flow line is solvent-free and targets both NMC and LFP chemistries.
Qarlbo and Wallenberg back the launch
The company is anchored by Qarlbo Energy, the investment vehicle of EQT co-founder Conni Jonsson, alongside FAM-owned Thisbe, part of the Wallenberg Foundations' industrial holdings. Refinyx is selling technology and full-plant engineering to industrial operators rather than owning refineries itself, a model that lets it scale without the capital burden that sank Northvolt. A first US customer, not yet named publicly, is already lined up.
Race to reshore battery-grade metals
The launch lands as Western battery makers scramble for domestic supplies of nickel, cobalt and lithium refined outside China, with recycling positioned as a strategic pillar of the US Inflation Reduction Act and the EU Critical Raw Materials Act. Refinyx also plans to extend its process to rare earths and phosphorus. Related coverage: B2U And LG Energy Solution Team To Turn Used EV Packs Into Grid BESS and Covenergo And Delta Capacity Break Ground On 300 MWh AKKU One BESS In Finland.
Reporting based on coverage from Business Wire, Bloomberg and 01Net.