The Chevy Volt 200 degrees test

This test is no doubt neat. I mean, automakers test the exterior to make sure every piece can withstand extreme temperatures and they should. But how about the test where the Volt‘s battery is heated up to 200 degrees. Where is that video? I’ve sat in a few cars after they baked in the sun all day long and the exterior was cool to the touch but were at least 200 degrees inside. What’s that going to do to the lithium-ion battery pack? I have so many questions.