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All-Solid / Solid-Liquid Electrolyte Li-Ion Battery Innovation & Patent Review

  • Company Chapter – Factorial Energy – USA

    Version: 2026-05-18, for paid subscribers
  • Technology Assessment: Factorial supplied automotive-format cells validated by a major OEM and completed a long-distance road demonstration – yet multi-thousand-cycle lithium-metal life at production volume remains the central scale-up question. The chapter examines how a polymer-electrolyte / lithium-metal platform complements an all-solid-state sulfide track, why multi-layer pouch-stacking yield anchors manufacturability, and how public claims align with the patent portfolio’s development priorities.
    Product Development Pathway
    (5 R&D Concepts)
    Crosslinked, in-situ-curable polymer electrolyte system pairing a high-concentration lithium salt with a low-loading functional additive to form a network with ion-transport channels tuned to lithium mobility. Dry-film cathode preparation that incorporates the electrolyte directly into a calenderable electrode mixture, removing wet slurry casting and post-assembly soaking while enabling thick, high-capacity electrodes. Further concepts address lithium-metal interphase stabilization for plating efficiency, bubble-free in-situ electrolyte curing for interface integrity and extended precursor shelf life, and weld-free continuous anode-foil production that folds tab formation into one lamination step.
    Potential Synergies to Deliver Well-Rounded Cells for Application
    An in-situ-curable polymer-electrolyte base anchors complementary anode-interphase, cure-chemistry and electrode-fabrication concepts – aligning energy density, cycle life, safety and manufacturability toward a single automotive-qualifiable cell architecture.
  • Document size: ≈5,600 words, 12 images, 1 adjacent Excel file (list of patent families with AI-based summaries)


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