Volkswagen and QS face challenges in developing solid-state batteries but continue to advance

Volkswagen's plan to cooperate with QS to develop solid-state batteries has been plagued by delays, but the two sides are still moving forward. Volkswagen has held a stake in QS since 2014 and invested $300 million twice in 2018 and 2020 to become QS's largest shareholder. The two companies have also established a joint venture with the goal of building a solid-state battery production line in 2025.