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CANADA - 2025/03/24: In this photo illustration, the QuantumScape logo is seen displayed on a ... More smartphone screen. (Photo Illustration by Thomas Fuller/SOPA Images/LightRocket via Getty Images)SOPA Images/LightRocket via Getty Images QuantumScape Corporation (NYSE: QS) recently achieved a significant manufacturing milestone, leading to a 35% surge in its stock during after-hours trading. The solid-state battery developer successfully integrated its advanced Cobra separator process into its baseline cell production, a crucial step toward commercial viability. The Cobra platform marks a substantial improvement over QuantumScape’s previous Raptor process. It allows for...