As far as I'm aware the battery is user non removable so if you do remove it then you could cause further issues and definitely void any remaining warranty.
Leave the phone Off and in a warm.place like an airing cupboard for a week or so. Don't attempt to turn it on until this time period has passed.
If it won't turn On then something inside has blown and a Samsung Experience Store or Samsung Service Centre can take a look but a charge would be made as this type of damage isn't covered under the manufacturer warranty.
Depending on the type of liquid that's got into the phone it may oxidise the internal boards.
I wish you all the best with this.
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.