Quantumscape Corp.'s stock surged 5.94% in after-hours trading on Tuesday, continuing its strong performance momentum.

The rally is driven by the company's announcement of a significant manufacturing milestone. QuantumScape has successfully integrated its proprietary Cobra separator manufacturing process into its baseline cell production line, producing an ultra-thin solid electrolyte membrane measuring just 10 microns thick with energy density of up to 1,000 Wh/kg. The Cobra technology offers a 25-fold improvement in production efficiency while significantly reducing the required factory equipment footprint.

Investor enthusiasm is further supported by bullish market projections, with Morgan Stanley forecasting the global solid-state battery market to exceed $120 billion by 2030. The solid-state battery investment theme has gained considerable momentum across U.S. equity markets, contributing to QuantumScape's substantial gains.