Battery recycling and cathode production startup Redwood expands its Series E to $425M, sources say at a $6B valuation, adds Google as a new strategic investor TechCrunch 2026-01-29 Kirsten Korosec Google, Redwood Related Coverage Google Backs Tesla Co-Founder's Redwood at $6 Billion Valuation Bloomberg · Edward Ludlow Google, Nvidia back ex-Tesla CTO's battery startup in $425m round Tech in Asia · Naomi Li Gan Redwood Materials Is Cashing In on Its Big Battery Bet Heatmap News · Katie Brigham Google joins Redwood's boosted Series E Axios · Katie Fehrenbacher Redwood Materials lands Google as a new investor Business Insider · Alistair Barr Redwood Materials nabs $425 million for battery recycling and energy storage. The Verge · Andrew J. Hawkins