Solid Power stock news
On September 28, 2026, Hyundai Motor Company's Head of Research and Development, Manfred Harrer, confirmed that the automaker is actively co--developing all--solid--state battery cells with Solid Power Inc. (NASDAQ: SLDP) alongside internal research efforts, underscoring Hyundai's strategic goal to secure proprietary solid--state technology rather than relying solely on external cell procurement. Harrer outlined that while Hyundai expects small--volume halo electric vehicles equipped with solid--state battery packs to reach the market within five years, achieving raw material cost parity against conventional lithium--ion batteries remains an industry--wide challenge that will require extended development.