Can I sign out from my iCloud without durning the phone on?

[iHorseHead]

Hey!
Umm… My iPhone 7 exploded a bit 😅 and now it shows it's out of battery. I don't want to plug it in and I can't turn it on because it's out of battery.
I was wondering if there's a way to sign out from my iCloud so no one could access my data? Especially Notes, photos (Have my banking details there and other stuff for example) or can it be fixed somehow? What do I do now? It looked fine yesterday and it worked.
I didn't hear anything. I just used it yesterday and didn't notice anything wrong with hit. Didn't drop it or anything.

I don't want to connect it to a charger. Does it look like battery bulging? I'd like to sign out from my iCloud account and get my SIM card out though.

 

[iHorseHead]

Any help please? Or is it fixable?

Update: Got a new battery

 

[iHorseHead]

I would also like to share a tip: I bought this phone 2 years ago, secondhand. Ever since the beginning when I charged this phone or used the phone, it got hot, but I googled it and figured it's iPhone 7's thing.
The battery health was always at 100%. I don't really use this phone, except only for one app and my other number, so basically I use it for one specific app and calling only.
It got always hot when I used it and charged it. The battery health was 100% so I wasn't worried about it.

Today I got a new battery and charged it and my phone did not get hot like it used to, so if your phone gets hot while using or charging then it's a major red flag.

When I took the phone off the charge now it wasn't even warm. I don't know if it had or now has an Apple battery. I hope it won't explode anymore.