The stock of QuantumScape (NYSE:QS) declined 1.79% during the Wednesday pre-market session, reversing previous gains, following the company’s partnership with Corning (NYSE:GLW).QuantumScape Teams With Corning To Boost Battery OutputQuantumScape’s stock surged after the company on Tuesday announced its collaboration with Corning to develop manufacturing capabilities for ceramic separators, a key component of its solid-state battery technology designed for commercial use. However, the stock closed 0.48% lowe ...

Sep 30, 2025 6:50 AM Eastern Daylight Time QuantumScape and Corning Announce Agreement for Ceramic Separator Development & Commercialization Share SAN JOSE, Calif. & CORNING, N.Y.--(BUSINESS WIRE)--QuantumScape Corporation (NYSE: QS), a global leader in next-generation solid-state lithium-metal battery technology, and Corning Incorporated (NYSE:GLW), one of the world's leading innovators in glass, ceramics, and materials science, today announced an agreement to jointly develop ceramic separator manufacturin ...