Technology specialist QuantumScape (NYSE:QS) — which is researching and developing solid-state batteries (SSBs) for electric vehicles — has struggled badly since peaking in December 2020. However, some developments could help potentially lift QS stock from the doldrums. A critical test will occur on April 24, when the company is scheduled to release its first-quarter earnings report. During the three months ended March 31, QuantumScape made a significant change at the top. In February, the company announced ...