so much for trying to keep this thread non-technical
here's a few links with hopefully digestable information ... first one is from MIT, second is by NASA. your tax dollars hard at work freely used all over the world. strangely enough very limited use in America.
A123 pdf link ... OK.. the real title is: Electrochemical Energy Storage for Transportation & Power Grid
Designing Safe Lithium-Ion
Battery. Packs Using Thermal Abuse Models PDF