Redwood Materials Secures $350M Funding for Energy Storage

Redwood Materials Secures $350 Million to Fuel AI Data Center Power Solutions

Redwood Materials, a company specializing in battery recycling and cathode production, has successfully raised $350 million in funding. This capital injection is intended to support the expansion of its energy storage division, directly addressing the increasing power demands of the rapidly growing AI data center sector.

Series E Funding and Valuation

The Series E funding round was spearheaded by venture firm Eclipse, with a notable new strategic investment from NVentures, Nvidia’s venture capital arm. While the company’s precise valuation remains undisclosed, sources indicate a valuation of approximately $6 billion. This represents a $1 billion increase over its previous valuation.

Expansion Plans and Workforce Growth

The newly acquired funds will be strategically allocated to bolster Redwood Materials’ energy-storage operations. Furthermore, investments will be made to enhance refining and materials production capabilities. The company, established by former Tesla CTO JB Straubel, also intends to expand its team by recruiting additional engineers and operational staff.

From Battery Recycling to Circular Supply Chain

Founded in 2017, Redwood Materials initially focused on establishing a closed-loop supply chain for batteries. This involved recycling materials from battery cell manufacturing scrap and end-of-life consumer electronics, such as cell phones and laptops.

This core recycling business – which continues to expand – centers around processing discarded materials and recovering valuable elements like cobalt, nickel, and lithium. These reclaimed materials are then supplied to customers including Panasonic, GM, and Toyota.

Diversification into Cathode Production and Energy Storage

Redwood Materials has broadened its scope to include cathode production, a critical component in battery manufacturing. More recently, the company launched an energy-storage business leveraging the substantial volume of electric vehicle (EV) batteries it collects.

This new venture, known as Redwood Energy, primarily serves AI data centers and other large industrial facilities with reliable power solutions.

Repurposing EV Batteries for Sustainable Power

Redwood Materials currently possesses a significant inventory of EV batteries that retain considerable remaining capacity. Rather than immediately recycling these batteries, the company integrates them with renewable energy sources, such as wind and solar power.

This creates an off-grid energy system capable of delivering power to AI data centers or industrial sites. The system can also be connected to the traditional power grid, and Redwood notes the potential for integration with natural gas turbines or future nuclear power generation for large-scale energy storage.

Dominating the EV Battery Repurposing Market

The company currently recovers over 70% of all used or discarded battery packs in North America, and not all require immediate recycling. As of June, Redwood Materials had amassed a stockpile exceeding 1 gigawatt-hour of batteries suitable for energy storage applications.

Looking ahead, the company aims to deploy 20 gigawatt-hours of grid-scale storage by 2028, positioning it as a leading force in the repurposing of used EV battery packs.