Electric vehicle batteries in parking garages that are flattened would burn.

[ProfessorGAC]

52. My Specialty, Educationally...

Physical organic chemistry. Worked in the that field for 43 years, too.
I spent the last 19 years of my career working at the industrial scale doing troubleshooting & optimization. (Plus, a couple of industry shifting changes)
Because of that and R&D, I know those companies that make consumer products, I&I products and the like. Then I know the suppliers that make various alcohols. So, I got pretty tuned into safety & hygiene.
Alcohols are far less hazardous than gasoline. Much higher flash points, much higher threshold values for vapor exposure. I don't keep gas cans in the garage. But, I'm ok with 99% isopropanol in my bathroom. If that helps ameliorate your concerns.

BTW:I still know way more details about what's in various consumer goods than most anybody would want to know! Just got stuck in the recesses.

As to your question, I think NIH collects that kind of data.