A solid-state battery development lab for QuantumScape.QuantumScapeThe electric vehicle space has seen a handful of impressive stock market debuts in recent years, but battery start-up QuantumScape’s first few weeks of trading were remarkable even by EV stock standards. QuantumScape, which was founded in 2010, went public via a merger with a special-purpose acquisition company, or SPAC. Its stock soared 49% in its first day of trading in November 2020 and had surged to a high of $131.67 by Dec. 22 — a gain of over 400% in less than a month.That run gave QuantumScape an eye-popping $54 billion valuation, fueled by investors’ excitement over the company’s solid-state battery technology, so called because it does away with the flammable liquid or gel electrolyte found in today’s lithium-ion batteries. What’s more, it didn’t hurt that auto giant Volkswagen was a major investor, or…
