The ones used in these “single use” devices are almost universally just standard Li-Ion.

In vapes it’s almost certain, as other battery types just don’t work very well for this application. Also, many of these come rechargeable now (but not refillable).

In “emergency chargers”, you could in theory use something different but usually it’s lithium too: https://www.youtube.com/watch?v=6lflk6iY56w