Applications & Engineering

The short answer: Tesla said it outright. On the Q4 2021 earnings call, Elon Musk stated that “all stationary storage, Powerwall and Megapack, will transition to an iron-based system, basically a non-nickel system,” adding later that for stationary storage “the energy density is not as important because it’s just staying on the ground.” The engineering

SpaceX has never confirmed Starlink’s cell chemistry — but a NASA-hosted briefing from its principal battery engineer discloses the pack design, screening methods, and reliability engineering behind 9,500+ satellites.