https://www.caseyresearch.com/daily-dispatch/theres-an-explosive-problem-with-these-widely-used-batteries/


Description of the tiny company in this article working to solve runaway explosions and fires. I don't have a subscription but, I remember EFL saying in Europe, at the time, they were the only battery to pass the testing for bus battery safety and requirements. They seem to have Li runaway under control, ... so far. they have also worked with NASA, and I'm sure learned a lot from that experience.