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QuantumScape and Honda Sign Multi-Year Solid-State Battery Research Pact

Honda's move to joint research offers OEM validation with access to manufacturing know-how.

Overview

  • QuantumScape and Honda R&D announced a multi-year joint research agreement Thursday to advance QuantumScape’s solid-state lithium‑metal cells and the manufacturing processes needed to make them.
  • Honda completed a hands-on technical evaluation and competitive benchmarking before the agreement and its R&D COO said the technology showed “compelling and unique advantages.”
  • The announcement sent QuantumScape shares higher in intraday trading, with reports of gains in the roughly 7%–14% range as investors treated the deal as a validation milestone.
  • Both companies cautioned that the program remains in a development phase and that proving performance, building consistent quality, and scaling to high-volume production are unresolved and risky tasks.
  • The deal expands QuantumScape’s automaker ties beyond Volkswagen’s PowerCo, reinforces its position in a crowded solid-state battery field, and follows recent company milestones such as Eagle Line production work and initial customer billing.