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  1. Jeffrey Brian Straubel[ 2 ] (born December 20, 1975) is an American businessman and electrical engineer. He spent 15 years at Tesla, [ 3 ] as chief technical officer until moving to an advisory role in July 2019. [ 4 ] . In 2023, he was elected to the company's board of directors.

  2. May 19, 2022 · Straubel started thinking about battery materials when he was building Tesla’s first major battery factory in the mid-2010s. He realized that if it sparked the transformational change he hoped ...

  3. Sep 14, 2021 · J.B. Straubel says the new U.S. factory will produce material for 100 gigawatt hours of batteries a year by the end of 2025. That’s enough for about 1.3 million long-range vehicles a year.

    • QuantumScape. QuantumScape is a San Jose-based battery company founded 10 years ago by Jagdeep Singh, a computer scientist and co-founder of Infinera Corporation, a major telecom component supplier, and Tim Holme, a Stanford-educated mechanical engineer.
    • Battery Cell Fast Charging Capacity. They showed actual test results showing that their battery cells can charge from 0 to 80% capacity in 15 minutes
    • Battery Cell Life. Solid-state batteries have often lacked in longevity, but QuantumScape has already shown that it can retain over 80% capacity after 800 cycles
    • Battery Cell Energy Density. The company didn’t release as much data on the energy density of its cells, but like other solid-state batteries in the past, it is expected to deliver significant improvements over current Li-Ion batteries
  4. Sep 20, 2023 · JB Straubel has worn many hats in his career: co-founder of Tesla, Tesla board member, and more recently, founder and CEO of battery materials and recycling startup Redwood...

  5. JB Straubel is the founder and CEO of Redwood Materials, a company that recycles lithium-ion batteries. He also co-founded and served as the CTO of Tesla until 2019.

  6. May 16, 2023 · JB Straubel is officially back at Tesla — this time as a board member. The former Tesla CTO and co-founder was elected by shareholders Tuesday as an independent board of director.

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