QuantumScape, Corning to Scale Solid‑State Separators

QuantumScape and Corning announced a joint agreement to develop and scale high-volume manufacturing of ceramic separators for solid-state lithium‑metal batteries to accelerate commercialization. The partnership pairs QuantumScape’s recent “Cobra” separator progress and B1 sample production and its broader industrialization efforts with Corning’s ceramics and manufacturing expertise. QuantumScape also notes backing from partners such as Volkswagen’s PowerCo, and neither company disclosed financial terms or a firm timeline for commercial production. Investors responded positively, with QS shares rallying sharply this month—hitting a 52‑week high and posting double‑digit gains on multiple sessions. That optimism is reinforced by U.S. government moves to strengthen domestic lithium supply, which could lower raw‑material costs and indirectly benefit battery makers.