Battery cover ripped, how to wrap it again?

Hello.

So, I broke my smartphone's screen (Huawei P8 Lite 2017) and in order to change it, one of the steps is to remove the battery. It happens that in the process of removing the battery I ripped off a bit of the wrap envolving it.

I already searched for a solution but didnt found it so here I am. The closest I found was people puncturing the batteries and they starting smoke but thats not the case. In my case it's really only a bit of the battery's cover.

Hope someone can tell me if it's dangerous or how could I fix it by wrapping it again and with what matterials or if I just should buy a new battery.

Thanks in advance :)