Dented battery. Safe or not safe?

Hello everyone, I ordered a replacement battery from Ifixit 3 days ago and just received it. Well unfortunately when I opened the package it's evident the battery has a dent in one of it's corners.

Now I'm not very familiar with lithium ion batteries and all the searching I've done people either say it's fine as long as it's not punctured while others say it's better to play it safe than sorry. So I'm looking for any advice, I'll attach pictures to better illustrate my problem.

https://imgur.com/dfuxUfb

https://imgur.com/h3cV7aU

https://imgur.com/YaGJ71t

https://imgur.com/IFlnRLa

https://imgur.com/SsCxw6H