QuantumScape (QS) sells solid-state batteries, mainly for electric vehicles (EVs). QS stock has been struggling to make headway in the past few years, up until June of this year, as the company started to make a turnaround. QuantumScape announced breakthroughs and new partnerships. In the past six months, QS stock has been up 304%, and the second half of this year is turning out to be one of the best on record for the battery maker. More News from Barchart Last week, QuantumScape announced that it began ...