So i have the idea that making batteries that explode when exposed to extreme pressure or heat, and they decrease spark speed when they are exposed to it.
For example 22C- Normal 40C- 4 sparks per second 80C - 2 sparks per second 100C- Fire coming out of battery and 0 sparks per second, irreparable at this point. If cooled, then the fire will stop but no more sparks until it is replaced 120C- Exploding
Pressure is the same but no inbetween, so its either working or it is in a fireball
Existing elements...
A type of battery that lowers its output as it's heated is possible, if you know how to