back
Get SIGNAL/NOISE in your inbox daily

JB Straubel, Tesla’s co-founder and former chief technology officer, is pioneering a new approach to powering AI data centers using recycled electric vehicle batteries through his company Redwood Materials. This innovative solution addresses the skyrocketing energy demands of artificial intelligence infrastructure while extending the useful life of EV batteries that still retain significant storage capacity.

What you should know: Straubel founded Redwood Materials in 2017 with the original mission of creating a closed-loop battery recycling system for electric vehicles.

  • The company has now expanded its focus to repurpose used EV batteries for grid-scale energy storage applications.
  • These “second-life” batteries still hold usable capacity even after their automotive applications end, making them viable for stationary energy storage.

Why this matters: The convergence of AI’s explosive growth and the need for sustainable energy solutions creates a compelling opportunity for battery recycling innovation.

  • AI data centers require massive amounts of reliable power, driving unprecedented demand for energy storage solutions.
  • Repurposing EV batteries provides a more sustainable alternative to manufacturing new storage systems while addressing the growing challenge of battery waste.

The big picture: This approach represents a practical intersection of two major technological trends—the electrification of transportation and the AI revolution.

  • As more EVs reach end-of-life status in the coming years, the supply of potentially reusable batteries will grow substantially.
  • Grid-scale energy storage is becoming increasingly critical as renewable energy sources require backup power systems to ensure reliability.

Competitive landscape: Straubel’s background as Tesla’s former technology chief positions Redwood Materials uniquely in the battery recycling space.

  • The company benefits from deep expertise in battery technology and manufacturing processes gained during Tesla’s rapid scaling phase.
  • This venture demonstrates how automotive industry veterans are finding new applications for their expertise in the broader clean energy ecosystem.

Recent Stories

Oct 17, 2025

DOE fusion roadmap targets 2030s commercial deployment as AI drives $9B investment

The Department of Energy has released a new roadmap targeting commercial-scale fusion power deployment by the mid-2030s, though the plan lacks specific funding commitments and relies on scientific breakthroughs that have eluded researchers for decades. The strategy emphasizes public-private partnerships and positions AI as both a research tool and motivation for developing fusion energy to meet data centers' growing electricity demands. The big picture: The DOE's roadmap aims to "deliver the public infrastructure that supports the fusion private sector scale up in the 2030s," but acknowledges it cannot commit to specific funding levels and remains subject to Congressional appropriations. Why...

Oct 17, 2025

Tying it all together: Credo’s purple cables power the $4B AI data center boom

Credo, a Silicon Valley semiconductor company specializing in data center cables and chips, has seen its stock price more than double this year to $143.61, following a 245% surge in 2024. The company's signature purple cables, which cost between $300-$500 each, have become essential infrastructure for AI data centers, positioning Credo to capitalize on the trillion-dollar AI infrastructure expansion as hyperscalers like Amazon, Microsoft, and Elon Musk's xAI rapidly build out massive computing facilities. What you should know: Credo's active electrical cables (AECs) are becoming indispensable for connecting the massive GPU clusters required for AI training and inference. The company...

Oct 17, 2025

Vatican launches Latin American AI network for human development

The Vatican hosted a two-day conference bringing together 50 global experts to explore how artificial intelligence can advance peace, social justice, and human development. The event launched the Latin American AI Network for Integral Human Development and established principles for ethical AI governance that prioritize human dignity over technological advancement. What you should know: The Pontifical Academy of Social Sciences, the Vatican's research body for social issues, organized the "Digital Rerum Novarum" conference on October 16-17, combining academic research with practical AI applications. Participants included leading experts from MIT, Microsoft, Columbia University, the UN, and major European institutions. The conference...