Safe circuit with lithium battery?

Question

Batteries

Good afternoon!
I am making a simple steam generator, it will consist of a lithium battery, a switch and a coil with cotton wool soaked in liquid. In general, the same vape, only without electronic filling, short circuit protection, overheating, etc. It is intended to be used by people who may violate safety regulations. Interested in what can happen bad, and how to protect yourself from it. The first thing that comes to my mind is that we soar for too long, the internal resistance of the battery heats up and it explodes. 2) - liquid fills the battery, short circuit, ??

Answer 1

There can be no safe scheme without the use of "security systems", this is nonsense.
The only way to make the so-called. "mechmod", which is exactly what your Wishlist is called - use batteries with a built-in protection board, on the minus a small round ball or a strip along the can.
Do you know what short circuit (short circuit) is, how it works, what happens, etc.?
So... wait, so you came here with a question to scare someone later or just "theorize"?

Answer 2

Interested in what could go wrong

A fire that is extremely difficult to extinguish.
Use protection schemes, obviously.
Nothing different from what you wrote in the first paragraph. The same operation in short circuit mode. The consequences are the same.

Answer 3

There is no safe power supply from lithium batteries.
Lithium batteries themselves are dangerous, the only thing you can do is to reduce the risk to a minimum. But definitely not 100%.