The battery is not glued in, it's just a strong double sided tape. The display is reinforced with a thick plastic backplate so you would have to try pretty hard to break it.
Remove the motherboard (4 screws, 2 connectors) and slide a plastic card under it to peel/break the seal until it's released enough to pull the battery up without bending it.
The other info you need to know is that the two board connectors have small brown retention clips need to be flipped up to release/apply pressure.
Here's a replacement battery from a seller based in the US:
https://www.ebay.com/itm/361637093878